2 * Written for linux by Johan Myreen as a translation from
3 * the assembly version by Linus (with diacriticals added)
5 * Some additional features added by Christoph Niemann (ChN), March 1993
7 * Loadable keymaps by Risto Kankkunen, May 1993
10 * Added decr/incr_console, dynamic keymaps, Unicode support,
11 * dynamic function/string keys, led setting, Sept 1994
12 * `Sticky' modifier keys, 951006.
14 * 11-11-96: SAK should now work in the raw mode (Martin Mares)
16 * Modified to provide 'generic' keyboard support by Hamish Macdonald
17 * Merge with the m68k keyboard driver and split-off of the PC low-level
18 * parts by Geert Uytterhoeven, May 1997
20 * 27-05-97: Added support for the Magic SysRq Key (Martin Mares)
22 * 21-08-02: Converted to input API, major cleanup. (Vojtech Pavlik)
25 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
27 #include <linux/consolemap.h>
28 #include <linux/module.h>
29 #include <linux/sched.h>
30 #include <linux/tty.h>
31 #include <linux/tty_flip.h>
33 #include <linux/string.h>
34 #include <linux/init.h>
35 #include <linux/slab.h>
37 #include <linux/kbd_kern.h>
38 #include <linux/kbd_diacr.h>
39 #include <linux/vt_kern.h>
40 #include <linux/input.h>
41 #include <linux/reboot.h>
42 #include <linux/notifier.h>
43 #include <linux/jiffies.h>
44 #include <linux/uaccess.h>
46 #include <asm/irq_regs.h>
48 extern void ctrl_alt_del(void);
51 * Exported functions/variables
54 #define KBD_DEFMODE ((1 << VC_REPEAT) | (1 << VC_META))
57 * Some laptops take the 789uiojklm,. keys as number pad when NumLock is on.
58 * This seems a good reason to start with NumLock off. On HIL keyboards
59 * of PARISC machines however there is no NumLock key and everyone expects the
60 * keypad to be used for numbers.
63 #if defined(CONFIG_PARISC) && (defined(CONFIG_KEYBOARD_HIL) || defined(CONFIG_KEYBOARD_HIL_OLD))
64 #define KBD_DEFLEDS (1 << VC_NUMLOCK)
76 k_self, k_fn, k_spec, k_pad,\
77 k_dead, k_cons, k_cur, k_shift,\
78 k_meta, k_ascii, k_lock, k_lowercase,\
79 k_slock, k_dead2, k_brl, k_ignore
81 typedef void (k_handler_fn)(struct vc_data *vc, unsigned char value,
83 static k_handler_fn K_HANDLERS;
84 static k_handler_fn *k_handler[16] = { K_HANDLERS };
87 fn_null, fn_enter, fn_show_ptregs, fn_show_mem,\
88 fn_show_state, fn_send_intr, fn_lastcons, fn_caps_toggle,\
89 fn_num, fn_hold, fn_scroll_forw, fn_scroll_back,\
90 fn_boot_it, fn_caps_on, fn_compose, fn_SAK,\
91 fn_dec_console, fn_inc_console, fn_spawn_con, fn_bare_num
93 typedef void (fn_handler_fn)(struct vc_data *vc);
94 static fn_handler_fn FN_HANDLERS;
95 static fn_handler_fn *fn_handler[] = { FN_HANDLERS };
98 * Variables exported for vt_ioctl.c
101 struct vt_spawn_console vt_spawn_con = {
102 .lock = __SPIN_LOCK_UNLOCKED(vt_spawn_con.lock),
112 static struct kbd_struct kbd_table[MAX_NR_CONSOLES];
113 static struct kbd_struct *kbd = kbd_table;
115 /* maximum values each key_handler can handle */
116 static const int max_vals[] = {
117 255, ARRAY_SIZE(func_table) - 1, ARRAY_SIZE(fn_handler) - 1, NR_PAD - 1,
118 NR_DEAD - 1, 255, 3, NR_SHIFT - 1, 255, NR_ASCII - 1, NR_LOCK - 1,
119 255, NR_LOCK - 1, 255, NR_BRL - 1
122 static const int NR_TYPES = ARRAY_SIZE(max_vals);
124 static struct input_handler kbd_handler;
125 static DEFINE_SPINLOCK(kbd_event_lock);
126 static unsigned long key_down[BITS_TO_LONGS(KEY_CNT)]; /* keyboard key bitmap */
127 static unsigned char shift_down[NR_SHIFT]; /* shift state counters.. */
128 static bool dead_key_next;
129 static int npadch = -1; /* -1 or number assembled on pad */
130 static unsigned int diacr;
131 static char rep; /* flag telling character repeat */
133 static int shift_state = 0;
135 static unsigned char ledstate = 0xff; /* undefined */
136 static unsigned char ledioctl;
138 static struct ledptr {
141 unsigned char valid:1;
145 * Notifier list for console keyboard events
147 static ATOMIC_NOTIFIER_HEAD(keyboard_notifier_list);
149 int register_keyboard_notifier(struct notifier_block *nb)
151 return atomic_notifier_chain_register(&keyboard_notifier_list, nb);
153 EXPORT_SYMBOL_GPL(register_keyboard_notifier);
155 int unregister_keyboard_notifier(struct notifier_block *nb)
157 return atomic_notifier_chain_unregister(&keyboard_notifier_list, nb);
159 EXPORT_SYMBOL_GPL(unregister_keyboard_notifier);
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.
171 struct getset_keycode_data {
172 struct input_keymap_entry ke;
176 static int getkeycode_helper(struct input_handle *handle, void *data)
178 struct getset_keycode_data *d = data;
180 d->error = input_get_keycode(handle->dev, &d->ke);
182 return d->error == 0; /* stop as soon as we successfully get one */
185 static int getkeycode(unsigned int scancode)
187 struct getset_keycode_data d = {
190 .len = sizeof(scancode),
196 memcpy(d.ke.scancode, &scancode, sizeof(scancode));
198 input_handler_for_each_handle(&kbd_handler, &d, getkeycode_helper);
200 return d.error ?: d.ke.keycode;
203 static int setkeycode_helper(struct input_handle *handle, void *data)
205 struct getset_keycode_data *d = data;
207 d->error = input_set_keycode(handle->dev, &d->ke);
209 return d->error == 0; /* stop as soon as we successfully set one */
212 static int setkeycode(unsigned int scancode, unsigned int keycode)
214 struct getset_keycode_data d = {
217 .len = sizeof(scancode),
223 memcpy(d.ke.scancode, &scancode, sizeof(scancode));
225 input_handler_for_each_handle(&kbd_handler, &d, setkeycode_helper);
231 * Making beeps and bells. Note that we prefer beeps to bells, but when
232 * shutting the sound off we do both.
235 static int kd_sound_helper(struct input_handle *handle, void *data)
237 unsigned int *hz = data;
238 struct input_dev *dev = handle->dev;
240 if (test_bit(EV_SND, dev->evbit)) {
241 if (test_bit(SND_TONE, dev->sndbit)) {
242 input_inject_event(handle, EV_SND, SND_TONE, *hz);
246 if (test_bit(SND_BELL, dev->sndbit))
247 input_inject_event(handle, EV_SND, SND_BELL, *hz ? 1 : 0);
253 static void kd_nosound(unsigned long ignored)
255 static unsigned int zero;
257 input_handler_for_each_handle(&kbd_handler, &zero, kd_sound_helper);
260 static DEFINE_TIMER(kd_mksound_timer, kd_nosound, 0, 0);
262 void kd_mksound(unsigned int hz, unsigned int ticks)
264 del_timer_sync(&kd_mksound_timer);
266 input_handler_for_each_handle(&kbd_handler, &hz, kd_sound_helper);
269 mod_timer(&kd_mksound_timer, jiffies + ticks);
271 EXPORT_SYMBOL(kd_mksound);
274 * Setting the keyboard rate.
277 static int kbd_rate_helper(struct input_handle *handle, void *data)
279 struct input_dev *dev = handle->dev;
280 struct kbd_repeat *rep = data;
282 if (test_bit(EV_REP, dev->evbit)) {
284 if (rep[0].delay > 0)
285 input_inject_event(handle,
286 EV_REP, REP_DELAY, rep[0].delay);
287 if (rep[0].period > 0)
288 input_inject_event(handle,
289 EV_REP, REP_PERIOD, rep[0].period);
291 rep[1].delay = dev->rep[REP_DELAY];
292 rep[1].period = dev->rep[REP_PERIOD];
298 int kbd_rate(struct kbd_repeat *rep)
300 struct kbd_repeat data[2] = { *rep };
302 input_handler_for_each_handle(&kbd_handler, data, kbd_rate_helper);
303 *rep = data[1]; /* Copy currently used settings */
311 static void put_queue(struct vc_data *vc, int ch)
313 struct tty_struct *tty = vc->port.tty;
316 tty_insert_flip_char(tty, ch, 0);
317 con_schedule_flip(tty);
321 static void puts_queue(struct vc_data *vc, char *cp)
323 struct tty_struct *tty = vc->port.tty;
329 tty_insert_flip_char(tty, *cp, 0);
332 con_schedule_flip(tty);
335 static void applkey(struct vc_data *vc, int key, char mode)
337 static char buf[] = { 0x1b, 'O', 0x00, 0x00 };
339 buf[1] = (mode ? 'O' : '[');
345 * Many other routines do put_queue, but I think either
346 * they produce ASCII, or they produce some user-assigned
347 * string, and in both cases we might assume that it is
350 static void to_utf8(struct vc_data *vc, uint c)
355 else if (c < 0x800) {
356 /* 110***** 10****** */
357 put_queue(vc, 0xc0 | (c >> 6));
358 put_queue(vc, 0x80 | (c & 0x3f));
359 } else if (c < 0x10000) {
360 if (c >= 0xD800 && c < 0xE000)
364 /* 1110**** 10****** 10****** */
365 put_queue(vc, 0xe0 | (c >> 12));
366 put_queue(vc, 0x80 | ((c >> 6) & 0x3f));
367 put_queue(vc, 0x80 | (c & 0x3f));
368 } else if (c < 0x110000) {
369 /* 11110*** 10****** 10****** 10****** */
370 put_queue(vc, 0xf0 | (c >> 18));
371 put_queue(vc, 0x80 | ((c >> 12) & 0x3f));
372 put_queue(vc, 0x80 | ((c >> 6) & 0x3f));
373 put_queue(vc, 0x80 | (c & 0x3f));
378 * Called after returning from RAW mode or when changing consoles - recompute
379 * shift_down[] and shift_state from key_down[] maybe called when keymap is
380 * undefined, so that shiftkey release is seen. The caller must hold the
384 static void do_compute_shiftstate(void)
386 unsigned int i, j, k, sym, val;
389 memset(shift_down, 0, sizeof(shift_down));
391 for (i = 0; i < ARRAY_SIZE(key_down); i++) {
396 k = i * BITS_PER_LONG;
398 for (j = 0; j < BITS_PER_LONG; j++, k++) {
400 if (!test_bit(k, key_down))
403 sym = U(key_maps[0][k]);
404 if (KTYP(sym) != KT_SHIFT && KTYP(sym) != KT_SLOCK)
408 if (val == KVAL(K_CAPSSHIFT))
412 shift_state |= (1 << val);
417 /* We still have to export this method to vt.c */
418 void compute_shiftstate(void)
421 spin_lock_irqsave(&kbd_event_lock, flags);
422 do_compute_shiftstate();
423 spin_unlock_irqrestore(&kbd_event_lock, flags);
427 * We have a combining character DIACR here, followed by the character CH.
428 * If the combination occurs in the table, return the corresponding value.
429 * Otherwise, if CH is a space or equals DIACR, return DIACR.
430 * Otherwise, conclude that DIACR was not combining after all,
431 * queue it and return CH.
433 static unsigned int handle_diacr(struct vc_data *vc, unsigned int ch)
435 unsigned int d = diacr;
440 if ((d & ~0xff) == BRL_UC_ROW) {
441 if ((ch & ~0xff) == BRL_UC_ROW)
444 for (i = 0; i < accent_table_size; i++)
445 if (accent_table[i].diacr == d && accent_table[i].base == ch)
446 return accent_table[i].result;
449 if (ch == ' ' || ch == (BRL_UC_ROW|0) || ch == d)
452 if (kbd->kbdmode == VC_UNICODE)
455 int c = conv_uni_to_8bit(d);
464 * Special function handlers
466 static void fn_enter(struct vc_data *vc)
469 if (kbd->kbdmode == VC_UNICODE)
472 int c = conv_uni_to_8bit(diacr);
480 if (vc_kbd_mode(kbd, VC_CRLF))
484 static void fn_caps_toggle(struct vc_data *vc)
489 chg_vc_kbd_led(kbd, VC_CAPSLOCK);
492 static void fn_caps_on(struct vc_data *vc)
497 set_vc_kbd_led(kbd, VC_CAPSLOCK);
500 static void fn_show_ptregs(struct vc_data *vc)
502 struct pt_regs *regs = get_irq_regs();
508 static void fn_hold(struct vc_data *vc)
510 struct tty_struct *tty = vc->port.tty;
516 * Note: SCROLLOCK will be set (cleared) by stop_tty (start_tty);
517 * these routines are also activated by ^S/^Q.
518 * (And SCROLLOCK can also be set by the ioctl KDSKBLED.)
526 static void fn_num(struct vc_data *vc)
528 if (vc_kbd_mode(kbd, VC_APPLIC))
535 * Bind this to Shift-NumLock if you work in application keypad mode
536 * but want to be able to change the NumLock flag.
537 * Bind this to NumLock if you prefer that the NumLock key always
538 * changes the NumLock flag.
540 static void fn_bare_num(struct vc_data *vc)
543 chg_vc_kbd_led(kbd, VC_NUMLOCK);
546 static void fn_lastcons(struct vc_data *vc)
548 /* switch to the last used console, ChN */
549 set_console(last_console);
552 static void fn_dec_console(struct vc_data *vc)
554 int i, cur = fg_console;
556 /* Currently switching? Queue this next switch relative to that. */
557 if (want_console != -1)
560 for (i = cur - 1; i != cur; i--) {
562 i = MAX_NR_CONSOLES - 1;
563 if (vc_cons_allocated(i))
569 static void fn_inc_console(struct vc_data *vc)
571 int i, cur = fg_console;
573 /* Currently switching? Queue this next switch relative to that. */
574 if (want_console != -1)
577 for (i = cur+1; i != cur; i++) {
578 if (i == MAX_NR_CONSOLES)
580 if (vc_cons_allocated(i))
586 static void fn_send_intr(struct vc_data *vc)
588 struct tty_struct *tty = vc->port.tty;
592 tty_insert_flip_char(tty, 0, TTY_BREAK);
593 con_schedule_flip(tty);
596 static void fn_scroll_forw(struct vc_data *vc)
601 static void fn_scroll_back(struct vc_data *vc)
606 static void fn_show_mem(struct vc_data *vc)
611 static void fn_show_state(struct vc_data *vc)
616 static void fn_boot_it(struct vc_data *vc)
621 static void fn_compose(struct vc_data *vc)
623 dead_key_next = true;
626 static void fn_spawn_con(struct vc_data *vc)
628 spin_lock(&vt_spawn_con.lock);
629 if (vt_spawn_con.pid)
630 if (kill_pid(vt_spawn_con.pid, vt_spawn_con.sig, 1)) {
631 put_pid(vt_spawn_con.pid);
632 vt_spawn_con.pid = NULL;
634 spin_unlock(&vt_spawn_con.lock);
637 static void fn_SAK(struct vc_data *vc)
639 struct work_struct *SAK_work = &vc_cons[fg_console].SAK_work;
640 schedule_work(SAK_work);
643 static void fn_null(struct vc_data *vc)
645 do_compute_shiftstate();
649 * Special key handlers
651 static void k_ignore(struct vc_data *vc, unsigned char value, char up_flag)
655 static void k_spec(struct vc_data *vc, unsigned char value, char up_flag)
659 if (value >= ARRAY_SIZE(fn_handler))
661 if ((kbd->kbdmode == VC_RAW ||
662 kbd->kbdmode == VC_MEDIUMRAW ||
663 kbd->kbdmode == VC_OFF) &&
664 value != KVAL(K_SAK))
665 return; /* SAK is allowed even in raw mode */
666 fn_handler[value](vc);
669 static void k_lowercase(struct vc_data *vc, unsigned char value, char up_flag)
671 pr_err("k_lowercase was called - impossible\n");
674 static void k_unicode(struct vc_data *vc, unsigned int value, char up_flag)
677 return; /* no action, if this is a key release */
680 value = handle_diacr(vc, value);
683 dead_key_next = false;
687 if (kbd->kbdmode == VC_UNICODE)
690 int c = conv_uni_to_8bit(value);
697 * Handle dead key. Note that we now may have several
698 * dead keys modifying the same character. Very useful
701 static void k_deadunicode(struct vc_data *vc, unsigned int value, char up_flag)
706 diacr = (diacr ? handle_diacr(vc, value) : value);
709 static void k_self(struct vc_data *vc, unsigned char value, char up_flag)
711 k_unicode(vc, conv_8bit_to_uni(value), up_flag);
714 static void k_dead2(struct vc_data *vc, unsigned char value, char up_flag)
716 k_deadunicode(vc, value, up_flag);
720 * Obsolete - for backwards compatibility only
722 static void k_dead(struct vc_data *vc, unsigned char value, char up_flag)
724 static const unsigned char ret_diacr[NR_DEAD] = {'`', '\'', '^', '~', '"', ',' };
726 k_deadunicode(vc, ret_diacr[value], up_flag);
729 static void k_cons(struct vc_data *vc, unsigned char value, char up_flag)
737 static void k_fn(struct vc_data *vc, unsigned char value, char up_flag)
742 if ((unsigned)value < ARRAY_SIZE(func_table)) {
743 if (func_table[value])
744 puts_queue(vc, func_table[value]);
746 pr_err("k_fn called with value=%d\n", value);
749 static void k_cur(struct vc_data *vc, unsigned char value, char up_flag)
751 static const char cur_chars[] = "BDCA";
756 applkey(vc, cur_chars[value], vc_kbd_mode(kbd, VC_CKMODE));
759 static void k_pad(struct vc_data *vc, unsigned char value, char up_flag)
761 static const char pad_chars[] = "0123456789+-*/\015,.?()#";
762 static const char app_map[] = "pqrstuvwxylSRQMnnmPQS";
765 return; /* no action, if this is a key release */
767 /* kludge... shift forces cursor/number keys */
768 if (vc_kbd_mode(kbd, VC_APPLIC) && !shift_down[KG_SHIFT]) {
769 applkey(vc, app_map[value], 1);
773 if (!vc_kbd_led(kbd, VC_NUMLOCK)) {
778 k_fn(vc, KVAL(K_REMOVE), 0);
781 k_fn(vc, KVAL(K_INSERT), 0);
784 k_fn(vc, KVAL(K_SELECT), 0);
787 k_cur(vc, KVAL(K_DOWN), 0);
790 k_fn(vc, KVAL(K_PGDN), 0);
793 k_cur(vc, KVAL(K_LEFT), 0);
796 k_cur(vc, KVAL(K_RIGHT), 0);
799 k_fn(vc, KVAL(K_FIND), 0);
802 k_cur(vc, KVAL(K_UP), 0);
805 k_fn(vc, KVAL(K_PGUP), 0);
808 applkey(vc, 'G', vc_kbd_mode(kbd, VC_APPLIC));
813 put_queue(vc, pad_chars[value]);
814 if (value == KVAL(K_PENTER) && vc_kbd_mode(kbd, VC_CRLF))
818 static void k_shift(struct vc_data *vc, unsigned char value, char up_flag)
820 int old_state = shift_state;
826 * a CapsShift key acts like Shift but undoes CapsLock
828 if (value == KVAL(K_CAPSSHIFT)) {
829 value = KVAL(K_SHIFT);
831 clr_vc_kbd_led(kbd, VC_CAPSLOCK);
836 * handle the case that two shift or control
837 * keys are depressed simultaneously
839 if (shift_down[value])
844 if (shift_down[value])
845 shift_state |= (1 << value);
847 shift_state &= ~(1 << value);
850 if (up_flag && shift_state != old_state && npadch != -1) {
851 if (kbd->kbdmode == VC_UNICODE)
854 put_queue(vc, npadch & 0xff);
859 static void k_meta(struct vc_data *vc, unsigned char value, char up_flag)
864 if (vc_kbd_mode(kbd, VC_META)) {
865 put_queue(vc, '\033');
866 put_queue(vc, value);
868 put_queue(vc, value | 0x80);
871 static void k_ascii(struct vc_data *vc, unsigned char value, char up_flag)
879 /* decimal input of code, while Alt depressed */
882 /* hexadecimal input of code, while AltGr depressed */
890 npadch = npadch * base + value;
893 static void k_lock(struct vc_data *vc, unsigned char value, char up_flag)
898 chg_vc_kbd_lock(kbd, value);
901 static void k_slock(struct vc_data *vc, unsigned char value, char up_flag)
903 k_shift(vc, value, up_flag);
907 chg_vc_kbd_slock(kbd, value);
908 /* try to make Alt, oops, AltGr and such work */
909 if (!key_maps[kbd->lockstate ^ kbd->slockstate]) {
911 chg_vc_kbd_slock(kbd, value);
915 /* by default, 300ms interval for combination release */
916 static unsigned brl_timeout = 300;
917 MODULE_PARM_DESC(brl_timeout, "Braille keys release delay in ms (0 for commit on first key release)");
918 module_param(brl_timeout, uint, 0644);
920 static unsigned brl_nbchords = 1;
921 MODULE_PARM_DESC(brl_nbchords, "Number of chords that produce a braille pattern (0 for dead chords)");
922 module_param(brl_nbchords, uint, 0644);
924 static void k_brlcommit(struct vc_data *vc, unsigned int pattern, char up_flag)
926 static unsigned long chords;
927 static unsigned committed;
930 k_deadunicode(vc, BRL_UC_ROW | pattern, up_flag);
932 committed |= pattern;
934 if (chords == brl_nbchords) {
935 k_unicode(vc, BRL_UC_ROW | committed, up_flag);
942 static void k_brl(struct vc_data *vc, unsigned char value, char up_flag)
944 static unsigned pressed, committing;
945 static unsigned long releasestart;
947 if (kbd->kbdmode != VC_UNICODE) {
949 pr_warning("keyboard mode must be unicode for braille patterns\n");
954 k_unicode(vc, BRL_UC_ROW, up_flag);
962 pressed |= 1 << (value - 1);
964 committing = pressed;
965 } else if (brl_timeout) {
968 releasestart + msecs_to_jiffies(brl_timeout))) {
969 committing = pressed;
970 releasestart = jiffies;
972 pressed &= ~(1 << (value - 1));
973 if (!pressed && committing) {
974 k_brlcommit(vc, committing, 0);
979 k_brlcommit(vc, committing, 0);
982 pressed &= ~(1 << (value - 1));
987 * The leds display either (i) the status of NumLock, CapsLock, ScrollLock,
988 * or (ii) whatever pattern of lights people want to show using KDSETLED,
989 * or (iii) specified bits of specified words in kernel memory.
991 unsigned char getledstate(void)
996 void setledstate(struct kbd_struct *kbd, unsigned int led)
999 spin_lock_irqsave(&kbd_event_lock, flags);
1002 kbd->ledmode = LED_SHOW_IOCTL;
1004 kbd->ledmode = LED_SHOW_FLAGS;
1007 spin_unlock_irqrestore(&kbd_event_lock, flags);
1010 static inline unsigned char getleds(void)
1012 struct kbd_struct *kbd = kbd_table + fg_console;
1016 if (kbd->ledmode == LED_SHOW_IOCTL)
1019 leds = kbd->ledflagstate;
1021 if (kbd->ledmode == LED_SHOW_MEM) {
1022 for (i = 0; i < 3; i++)
1023 if (ledptrs[i].valid) {
1024 if (*ledptrs[i].addr & ledptrs[i].mask)
1033 static int kbd_update_leds_helper(struct input_handle *handle, void *data)
1035 unsigned char leds = *(unsigned char *)data;
1037 if (test_bit(EV_LED, handle->dev->evbit)) {
1038 input_inject_event(handle, EV_LED, LED_SCROLLL, !!(leds & 0x01));
1039 input_inject_event(handle, EV_LED, LED_NUML, !!(leds & 0x02));
1040 input_inject_event(handle, EV_LED, LED_CAPSL, !!(leds & 0x04));
1041 input_inject_event(handle, EV_SYN, SYN_REPORT, 0);
1048 * vt_get_leds - helper for braille console
1049 * @console: console to read
1050 * @flag: flag we want to check
1052 * Check the status of a keyboard led flag and report it back
1054 int vt_get_leds(int console, int flag)
1056 unsigned long flags;
1057 struct kbd_struct * kbd = kbd_table + console;
1060 spin_lock_irqsave(&kbd_event_lock, flags);
1061 ret = vc_kbd_led(kbd, flag);
1062 spin_unlock_irqrestore(&kbd_event_lock, flags);
1066 EXPORT_SYMBOL_GPL(vt_get_leds);
1069 * vt_set_led_state - set LED state of a console
1070 * @console: console to set
1073 * Set the LEDs on a console. This is a wrapper for the VT layer
1074 * so that we can keep kbd knowledge internal
1076 void vt_set_led_state(int console, int leds)
1078 struct kbd_struct * kbd = kbd_table + console;
1079 setledstate(kbd, leds);
1083 * vt_kbd_con_start - Keyboard side of console start
1086 * Handle console start. This is a wrapper for the VT layer
1087 * so that we can keep kbd knowledge internal
1089 void vt_kbd_con_start(int console)
1091 struct kbd_struct * kbd = kbd_table + console;
1092 unsigned long flags;
1093 spin_lock_irqsave(&kbd_event_lock, flags);
1094 clr_vc_kbd_led(kbd, VC_SCROLLOCK);
1096 spin_unlock_irqrestore(&kbd_event_lock, flags);
1100 * vt_kbd_con_stop - Keyboard side of console stop
1103 * Handle console stop. This is a wrapper for the VT layer
1104 * so that we can keep kbd knowledge internal
1106 void vt_kbd_con_stop(int console)
1108 struct kbd_struct * kbd = kbd_table + console;
1109 unsigned long flags;
1110 spin_lock_irqsave(&kbd_event_lock, flags);
1111 set_vc_kbd_led(kbd, VC_SCROLLOCK);
1113 spin_unlock_irqrestore(&kbd_event_lock, flags);
1117 * This is the tasklet that updates LED state on all keyboards
1118 * attached to the box. The reason we use tasklet is that we
1119 * need to handle the scenario when keyboard handler is not
1120 * registered yet but we already getting updates form VT to
1123 static void kbd_bh(unsigned long dummy)
1125 unsigned char leds = getleds();
1127 if (leds != ledstate) {
1128 input_handler_for_each_handle(&kbd_handler, &leds,
1129 kbd_update_leds_helper);
1134 DECLARE_TASKLET_DISABLED(keyboard_tasklet, kbd_bh, 0);
1136 #if defined(CONFIG_X86) || defined(CONFIG_IA64) || defined(CONFIG_ALPHA) ||\
1137 defined(CONFIG_MIPS) || defined(CONFIG_PPC) || defined(CONFIG_SPARC) ||\
1138 defined(CONFIG_PARISC) || defined(CONFIG_SUPERH) ||\
1139 (defined(CONFIG_ARM) && defined(CONFIG_KEYBOARD_ATKBD) && !defined(CONFIG_ARCH_RPC)) ||\
1140 defined(CONFIG_AVR32)
1142 #define HW_RAW(dev) (test_bit(EV_MSC, dev->evbit) && test_bit(MSC_RAW, dev->mscbit) &&\
1143 ((dev)->id.bustype == BUS_I8042) && ((dev)->id.vendor == 0x0001) && ((dev)->id.product == 0x0001))
1145 static const unsigned short x86_keycodes[256] =
1146 { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
1147 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
1148 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
1149 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
1150 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
1151 80, 81, 82, 83, 84,118, 86, 87, 88,115,120,119,121,112,123, 92,
1152 284,285,309, 0,312, 91,327,328,329,331,333,335,336,337,338,339,
1153 367,288,302,304,350, 89,334,326,267,126,268,269,125,347,348,349,
1154 360,261,262,263,268,376,100,101,321,316,373,286,289,102,351,355,
1155 103,104,105,275,287,279,258,106,274,107,294,364,358,363,362,361,
1156 291,108,381,281,290,272,292,305,280, 99,112,257,306,359,113,114,
1157 264,117,271,374,379,265,266, 93, 94, 95, 85,259,375,260, 90,116,
1158 377,109,111,277,278,282,283,295,296,297,299,300,301,293,303,307,
1159 308,310,313,314,315,317,318,319,320,357,322,323,324,325,276,330,
1160 332,340,365,342,343,344,345,346,356,270,341,368,369,370,371,372 };
1163 static int sparc_l1_a_state;
1164 extern void sun_do_break(void);
1167 static int emulate_raw(struct vc_data *vc, unsigned int keycode,
1168 unsigned char up_flag)
1175 put_queue(vc, 0xe1);
1176 put_queue(vc, 0x1d | up_flag);
1177 put_queue(vc, 0x45 | up_flag);
1182 put_queue(vc, 0xf2);
1187 put_queue(vc, 0xf1);
1192 * Real AT keyboards (that's what we're trying
1193 * to emulate here emit 0xe0 0x2a 0xe0 0x37 when
1194 * pressing PrtSc/SysRq alone, but simply 0x54
1195 * when pressing Alt+PrtSc/SysRq.
1197 if (test_bit(KEY_LEFTALT, key_down) ||
1198 test_bit(KEY_RIGHTALT, key_down)) {
1199 put_queue(vc, 0x54 | up_flag);
1201 put_queue(vc, 0xe0);
1202 put_queue(vc, 0x2a | up_flag);
1203 put_queue(vc, 0xe0);
1204 put_queue(vc, 0x37 | up_flag);
1212 code = x86_keycodes[keycode];
1217 put_queue(vc, 0xe0);
1218 put_queue(vc, (code & 0x7f) | up_flag);
1228 #define HW_RAW(dev) 0
1230 static int emulate_raw(struct vc_data *vc, unsigned int keycode, unsigned char up_flag)
1235 put_queue(vc, keycode | up_flag);
1240 static void kbd_rawcode(unsigned char data)
1242 struct vc_data *vc = vc_cons[fg_console].d;
1244 kbd = kbd_table + vc->vc_num;
1245 if (kbd->kbdmode == VC_RAW)
1246 put_queue(vc, data);
1249 static void kbd_keycode(unsigned int keycode, int down, int hw_raw)
1251 struct vc_data *vc = vc_cons[fg_console].d;
1252 unsigned short keysym, *key_map;
1255 struct tty_struct *tty;
1257 struct keyboard_notifier_param param = { .vc = vc, .value = keycode, .down = down };
1262 if (tty && (!tty->driver_data)) {
1263 /* No driver data? Strange. Okay we fix it then. */
1264 tty->driver_data = vc;
1267 kbd = kbd_table + vc->vc_num;
1270 if (keycode == KEY_STOP)
1271 sparc_l1_a_state = down;
1276 raw_mode = (kbd->kbdmode == VC_RAW);
1277 if (raw_mode && !hw_raw)
1278 if (emulate_raw(vc, keycode, !down << 7))
1279 if (keycode < BTN_MISC && printk_ratelimit())
1280 pr_warning("can't emulate rawmode for keycode %d\n",
1284 if (keycode == KEY_A && sparc_l1_a_state) {
1285 sparc_l1_a_state = false;
1290 if (kbd->kbdmode == VC_MEDIUMRAW) {
1292 * This is extended medium raw mode, with keys above 127
1293 * encoded as 0, high 7 bits, low 7 bits, with the 0 bearing
1294 * the 'up' flag if needed. 0 is reserved, so this shouldn't
1295 * interfere with anything else. The two bytes after 0 will
1296 * always have the up flag set not to interfere with older
1297 * applications. This allows for 16384 different keycodes,
1298 * which should be enough.
1300 if (keycode < 128) {
1301 put_queue(vc, keycode | (!down << 7));
1303 put_queue(vc, !down << 7);
1304 put_queue(vc, (keycode >> 7) | 0x80);
1305 put_queue(vc, keycode | 0x80);
1311 set_bit(keycode, key_down);
1313 clear_bit(keycode, key_down);
1316 (!vc_kbd_mode(kbd, VC_REPEAT) ||
1317 (tty && !L_ECHO(tty) && tty_chars_in_buffer(tty)))) {
1319 * Don't repeat a key if the input buffers are not empty and the
1320 * characters get aren't echoed locally. This makes key repeat
1321 * usable with slow applications and under heavy loads.
1326 param.shift = shift_final = (shift_state | kbd->slockstate) ^ kbd->lockstate;
1327 param.ledstate = kbd->ledflagstate;
1328 key_map = key_maps[shift_final];
1330 rc = atomic_notifier_call_chain(&keyboard_notifier_list,
1331 KBD_KEYCODE, ¶m);
1332 if (rc == NOTIFY_STOP || !key_map) {
1333 atomic_notifier_call_chain(&keyboard_notifier_list,
1334 KBD_UNBOUND_KEYCODE, ¶m);
1335 do_compute_shiftstate();
1336 kbd->slockstate = 0;
1340 if (keycode < NR_KEYS)
1341 keysym = key_map[keycode];
1342 else if (keycode >= KEY_BRL_DOT1 && keycode <= KEY_BRL_DOT8)
1343 keysym = U(K(KT_BRL, keycode - KEY_BRL_DOT1 + 1));
1347 type = KTYP(keysym);
1350 param.value = keysym;
1351 rc = atomic_notifier_call_chain(&keyboard_notifier_list,
1352 KBD_UNICODE, ¶m);
1353 if (rc != NOTIFY_STOP)
1354 if (down && !raw_mode)
1355 to_utf8(vc, keysym);
1361 if (type == KT_LETTER) {
1363 if (vc_kbd_led(kbd, VC_CAPSLOCK)) {
1364 key_map = key_maps[shift_final ^ (1 << KG_SHIFT)];
1366 keysym = key_map[keycode];
1370 param.value = keysym;
1371 rc = atomic_notifier_call_chain(&keyboard_notifier_list,
1372 KBD_KEYSYM, ¶m);
1373 if (rc == NOTIFY_STOP)
1376 if ((raw_mode || kbd->kbdmode == VC_OFF) && type != KT_SPEC && type != KT_SHIFT)
1379 (*k_handler[type])(vc, keysym & 0xff, !down);
1381 param.ledstate = kbd->ledflagstate;
1382 atomic_notifier_call_chain(&keyboard_notifier_list, KBD_POST_KEYSYM, ¶m);
1384 if (type != KT_SLOCK)
1385 kbd->slockstate = 0;
1388 static void kbd_event(struct input_handle *handle, unsigned int event_type,
1389 unsigned int event_code, int value)
1391 /* We are called with interrupts disabled, just take the lock */
1392 spin_lock(&kbd_event_lock);
1394 if (event_type == EV_MSC && event_code == MSC_RAW && HW_RAW(handle->dev))
1396 if (event_type == EV_KEY)
1397 kbd_keycode(event_code, value, HW_RAW(handle->dev));
1399 spin_unlock(&kbd_event_lock);
1401 tasklet_schedule(&keyboard_tasklet);
1402 do_poke_blanked_console = 1;
1403 schedule_console_callback();
1406 static bool kbd_match(struct input_handler *handler, struct input_dev *dev)
1410 if (test_bit(EV_SND, dev->evbit))
1413 if (test_bit(EV_KEY, dev->evbit)) {
1414 for (i = KEY_RESERVED; i < BTN_MISC; i++)
1415 if (test_bit(i, dev->keybit))
1417 for (i = KEY_BRL_DOT1; i <= KEY_BRL_DOT10; i++)
1418 if (test_bit(i, dev->keybit))
1426 * When a keyboard (or other input device) is found, the kbd_connect
1427 * function is called. The function then looks at the device, and if it
1428 * likes it, it can open it and get events from it. In this (kbd_connect)
1429 * function, we should decide which VT to bind that keyboard to initially.
1431 static int kbd_connect(struct input_handler *handler, struct input_dev *dev,
1432 const struct input_device_id *id)
1434 struct input_handle *handle;
1437 handle = kzalloc(sizeof(struct input_handle), GFP_KERNEL);
1442 handle->handler = handler;
1443 handle->name = "kbd";
1445 error = input_register_handle(handle);
1447 goto err_free_handle;
1449 error = input_open_device(handle);
1451 goto err_unregister_handle;
1455 err_unregister_handle:
1456 input_unregister_handle(handle);
1462 static void kbd_disconnect(struct input_handle *handle)
1464 input_close_device(handle);
1465 input_unregister_handle(handle);
1470 * Start keyboard handler on the new keyboard by refreshing LED state to
1471 * match the rest of the system.
1473 static void kbd_start(struct input_handle *handle)
1475 tasklet_disable(&keyboard_tasklet);
1477 if (ledstate != 0xff)
1478 kbd_update_leds_helper(handle, &ledstate);
1480 tasklet_enable(&keyboard_tasklet);
1483 static const struct input_device_id kbd_ids[] = {
1485 .flags = INPUT_DEVICE_ID_MATCH_EVBIT,
1486 .evbit = { BIT_MASK(EV_KEY) },
1490 .flags = INPUT_DEVICE_ID_MATCH_EVBIT,
1491 .evbit = { BIT_MASK(EV_SND) },
1494 { }, /* Terminating entry */
1497 MODULE_DEVICE_TABLE(input, kbd_ids);
1499 static struct input_handler kbd_handler = {
1502 .connect = kbd_connect,
1503 .disconnect = kbd_disconnect,
1506 .id_table = kbd_ids,
1509 int __init kbd_init(void)
1514 for (i = 0; i < MAX_NR_CONSOLES; i++) {
1515 kbd_table[i].ledflagstate = KBD_DEFLEDS;
1516 kbd_table[i].default_ledflagstate = KBD_DEFLEDS;
1517 kbd_table[i].ledmode = LED_SHOW_FLAGS;
1518 kbd_table[i].lockstate = KBD_DEFLOCK;
1519 kbd_table[i].slockstate = 0;
1520 kbd_table[i].modeflags = KBD_DEFMODE;
1521 kbd_table[i].kbdmode = default_utf8 ? VC_UNICODE : VC_XLATE;
1524 error = input_register_handler(&kbd_handler);
1528 tasklet_enable(&keyboard_tasklet);
1529 tasklet_schedule(&keyboard_tasklet);
1534 /* Ioctl support code */
1537 * vt_do_diacrit - diacritical table updates
1538 * @cmd: ioctl request
1539 * @up: pointer to user data for ioctl
1540 * @perm: permissions check computed by caller
1542 * Update the diacritical tables atomically and safely. Lock them
1543 * against simultaneous keypresses
1545 int vt_do_diacrit(unsigned int cmd, void __user *up, int perm)
1547 struct kbdiacrs __user *a = up;
1548 unsigned long flags;
1555 struct kbdiacr *diacr;
1558 diacr = kmalloc(MAX_DIACR * sizeof(struct kbdiacr),
1563 /* Lock the diacriticals table, make a copy and then
1564 copy it after we unlock */
1565 spin_lock_irqsave(&kbd_event_lock, flags);
1567 asize = accent_table_size;
1568 for (i = 0; i < asize; i++) {
1569 diacr[i].diacr = conv_uni_to_8bit(
1570 accent_table[i].diacr);
1571 diacr[i].base = conv_uni_to_8bit(
1572 accent_table[i].base);
1573 diacr[i].result = conv_uni_to_8bit(
1574 accent_table[i].result);
1576 spin_unlock_irqrestore(&kbd_event_lock, flags);
1578 if (put_user(asize, &a->kb_cnt))
1580 else if (copy_to_user(a->kbdiacr, diacr,
1581 asize * sizeof(struct kbdiacr)))
1588 struct kbdiacrsuc __user *a = up;
1591 buf = kmalloc(MAX_DIACR * sizeof(struct kbdiacruc),
1596 /* Lock the diacriticals table, make a copy and then
1597 copy it after we unlock */
1598 spin_lock_irqsave(&kbd_event_lock, flags);
1600 asize = accent_table_size;
1601 memcpy(buf, accent_table, asize * sizeof(struct kbdiacruc));
1603 spin_unlock_irqrestore(&kbd_event_lock, flags);
1605 if (put_user(asize, &a->kb_cnt))
1607 else if (copy_to_user(a->kbdiacruc, buf,
1608 asize*sizeof(struct kbdiacruc)))
1616 struct kbdiacrs __user *a = up;
1617 struct kbdiacr *diacr = NULL;
1623 if (get_user(ct, &a->kb_cnt))
1625 if (ct >= MAX_DIACR)
1629 diacr = kmalloc(sizeof(struct kbdiacr) * ct,
1634 if (copy_from_user(diacr, a->kbdiacr,
1635 sizeof(struct kbdiacr) * ct)) {
1641 spin_lock_irqsave(&kbd_event_lock, flags);
1642 accent_table_size = ct;
1643 for (i = 0; i < ct; i++) {
1644 accent_table[i].diacr =
1645 conv_8bit_to_uni(diacr[i].diacr);
1646 accent_table[i].base =
1647 conv_8bit_to_uni(diacr[i].base);
1648 accent_table[i].result =
1649 conv_8bit_to_uni(diacr[i].result);
1651 spin_unlock_irqrestore(&kbd_event_lock, flags);
1658 struct kbdiacrsuc __user *a = up;
1665 if (get_user(ct, &a->kb_cnt))
1668 if (ct >= MAX_DIACR)
1672 buf = kmalloc(ct * sizeof(struct kbdiacruc),
1677 if (copy_from_user(buf, a->kbdiacruc,
1678 ct * sizeof(struct kbdiacruc))) {
1683 spin_lock_irqsave(&kbd_event_lock, flags);
1685 memcpy(accent_table, buf,
1686 ct * sizeof(struct kbdiacruc));
1687 accent_table_size = ct;
1688 spin_unlock_irqrestore(&kbd_event_lock, flags);
1697 * vt_do_kdskbmode - set keyboard mode ioctl
1698 * @console: the console to use
1699 * @arg: the requested mode
1701 * Update the keyboard mode bits while holding the correct locks.
1702 * Return 0 for success or an error code.
1704 int vt_do_kdskbmode(int console, unsigned int arg)
1706 struct kbd_struct * kbd = kbd_table + console;
1708 unsigned long flags;
1710 spin_lock_irqsave(&kbd_event_lock, flags);
1713 kbd->kbdmode = VC_RAW;
1716 kbd->kbdmode = VC_MEDIUMRAW;
1719 kbd->kbdmode = VC_XLATE;
1720 do_compute_shiftstate();
1723 kbd->kbdmode = VC_UNICODE;
1724 do_compute_shiftstate();
1727 kbd->kbdmode = VC_OFF;
1732 spin_unlock_irqrestore(&kbd_event_lock, flags);
1737 * vt_do_kdskbmeta - set keyboard meta state
1738 * @console: the console to use
1739 * @arg: the requested meta state
1741 * Update the keyboard meta bits while holding the correct locks.
1742 * Return 0 for success or an error code.
1744 int vt_do_kdskbmeta(int console, unsigned int arg)
1746 struct kbd_struct * kbd = kbd_table + console;
1748 unsigned long flags;
1750 spin_lock_irqsave(&kbd_event_lock, flags);
1753 clr_vc_kbd_mode(kbd, VC_META);
1756 set_vc_kbd_mode(kbd, VC_META);
1761 spin_unlock_irqrestore(&kbd_event_lock, flags);
1765 int vt_do_kbkeycode_ioctl(int cmd, struct kbkeycode __user *user_kbkc,
1768 struct kbkeycode tmp;
1771 if (copy_from_user(&tmp, user_kbkc, sizeof(struct kbkeycode)))
1775 kc = getkeycode(tmp.scancode);
1777 kc = put_user(kc, &user_kbkc->keycode);
1782 kc = setkeycode(tmp.scancode, tmp.keycode);
1788 #define i (tmp.kb_index)
1789 #define s (tmp.kb_table)
1790 #define v (tmp.kb_value)
1792 int vt_do_kdsk_ioctl(int cmd, struct kbentry __user *user_kbe, int perm,
1795 struct kbd_struct * kbd = kbd_table + console;
1797 ushort *key_map, *new_map, val, ov;
1798 unsigned long flags;
1800 if (copy_from_user(&tmp, user_kbe, sizeof(struct kbentry)))
1803 if (!capable(CAP_SYS_TTY_CONFIG))
1808 /* Ensure another thread doesn't free it under us */
1809 spin_lock_irqsave(&kbd_event_lock, flags);
1810 key_map = key_maps[s];
1812 val = U(key_map[i]);
1813 if (kbd->kbdmode != VC_UNICODE && KTYP(val) >= NR_TYPES)
1816 val = (i ? K_HOLE : K_NOSUCHMAP);
1817 spin_unlock_irqrestore(&kbd_event_lock, flags);
1818 return put_user(val, &user_kbe->kb_value);
1822 if (!i && v == K_NOSUCHMAP) {
1823 spin_lock_irqsave(&kbd_event_lock, flags);
1824 /* deallocate map */
1825 key_map = key_maps[s];
1828 if (key_map[0] == U(K_ALLOCATED)) {
1833 spin_unlock_irqrestore(&kbd_event_lock, flags);
1837 if (KTYP(v) < NR_TYPES) {
1838 if (KVAL(v) > max_vals[KTYP(v)])
1841 if (kbd->kbdmode != VC_UNICODE)
1844 /* ++Geert: non-PC keyboards may generate keycode zero */
1845 #if !defined(__mc68000__) && !defined(__powerpc__)
1846 /* assignment to entry 0 only tests validity of args */
1851 new_map = kmalloc(sizeof(plain_map), GFP_KERNEL);
1854 spin_lock_irqsave(&kbd_event_lock, flags);
1855 key_map = key_maps[s];
1856 if (key_map == NULL) {
1859 if (keymap_count >= MAX_NR_OF_USER_KEYMAPS &&
1860 !capable(CAP_SYS_RESOURCE)) {
1861 spin_unlock_irqrestore(&kbd_event_lock, flags);
1865 key_maps[s] = new_map;
1867 key_map[0] = U(K_ALLOCATED);
1868 for (j = 1; j < NR_KEYS; j++)
1869 key_map[j] = U(K_HOLE);
1880 if (((ov == K_SAK) || (v == K_SAK)) && !capable(CAP_SYS_ADMIN)) {
1881 spin_unlock_irqrestore(&kbd_event_lock, flags);
1885 if (!s && (KTYP(ov) == KT_SHIFT || KTYP(v) == KT_SHIFT))
1886 do_compute_shiftstate();
1888 spin_unlock_irqrestore(&kbd_event_lock, flags);
1897 /* FIXME: This one needs untangling and locking */
1898 int vt_do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb, int perm)
1900 struct kbsentry *kbs;
1906 char *first_free, *fj, *fnw;
1910 if (!capable(CAP_SYS_TTY_CONFIG))
1913 kbs = kmalloc(sizeof(*kbs), GFP_KERNEL);
1919 /* we mostly copy too much here (512bytes), but who cares ;) */
1920 if (copy_from_user(kbs, user_kdgkb, sizeof(struct kbsentry))) {
1924 kbs->kb_string[sizeof(kbs->kb_string)-1] = '\0';
1929 sz = sizeof(kbs->kb_string) - 1; /* sz should have been
1931 up = user_kdgkb->kb_string;
1934 for ( ; *p && sz; p++, sz--)
1935 if (put_user(*p, up++)) {
1939 if (put_user('\0', up)) {
1944 return ((p && *p) ? -EOVERFLOW : 0);
1952 first_free = funcbufptr + (funcbufsize - funcbufleft);
1953 for (j = i+1; j < MAX_NR_FUNC && !func_table[j]; j++)
1955 if (j < MAX_NR_FUNC)
1960 delta = (q ? -strlen(q) : 1) + strlen(kbs->kb_string);
1961 if (delta <= funcbufleft) { /* it fits in current buf */
1962 if (j < MAX_NR_FUNC) {
1963 memmove(fj + delta, fj, first_free - fj);
1964 for (k = j; k < MAX_NR_FUNC; k++)
1966 func_table[k] += delta;
1970 funcbufleft -= delta;
1971 } else { /* allocate a larger buffer */
1973 while (sz < funcbufsize - funcbufleft + delta)
1975 fnw = kmalloc(sz, GFP_KERNEL);
1983 if (fj > funcbufptr)
1984 memmove(fnw, funcbufptr, fj - funcbufptr);
1985 for (k = 0; k < j; k++)
1987 func_table[k] = fnw + (func_table[k] - funcbufptr);
1989 if (first_free > fj) {
1990 memmove(fnw + (fj - funcbufptr) + delta, fj, first_free - fj);
1991 for (k = j; k < MAX_NR_FUNC; k++)
1993 func_table[k] = fnw + (func_table[k] - funcbufptr) + delta;
1995 if (funcbufptr != func_buf)
1998 funcbufleft = funcbufleft - delta + sz - funcbufsize;
2001 strcpy(func_table[i], kbs->kb_string);
2010 int vt_do_kdskled(int console, int cmd, unsigned long arg, int perm)
2012 struct kbd_struct * kbd = kbd_table + console;
2013 unsigned long flags;
2014 unsigned char ucval;
2017 /* the ioctls below read/set the flags usually shown in the leds */
2018 /* don't use them - they will go away without warning */
2020 spin_lock_irqsave(&kbd_event_lock, flags);
2021 ucval = kbd->ledflagstate | (kbd->default_ledflagstate << 4);
2022 spin_unlock_irqrestore(&kbd_event_lock, flags);
2023 return put_user(ucval, (char __user *)arg);
2030 spin_lock_irqsave(&kbd_event_lock, flags);
2031 kbd->ledflagstate = (arg & 7);
2032 kbd->default_ledflagstate = ((arg >> 4) & 7);
2034 spin_unlock_irqrestore(&kbd_event_lock, flags);
2037 /* the ioctls below only set the lights, not the functions */
2038 /* for those, see KDGKBLED and KDSKBLED above */
2040 ucval = getledstate();
2041 return put_user(ucval, (char __user *)arg);
2046 setledstate(kbd, arg);
2049 return -ENOIOCTLCMD;
2052 int vt_do_kdgkbmode(int console)
2054 struct kbd_struct * kbd = kbd_table + console;
2055 /* This is a spot read so needs no locking */
2056 switch (kbd->kbdmode) {
2071 * vt_do_kdgkbmeta - report meta status
2072 * @console: console to report
2074 * Report the meta flag status of this console
2076 int vt_do_kdgkbmeta(int console)
2078 struct kbd_struct * kbd = kbd_table + console;
2079 /* Again a spot read so no locking */
2080 return vc_kbd_mode(kbd, VC_META) ? K_ESCPREFIX : K_METABIT;
2084 * vt_reset_unicode - reset the unicode status
2085 * @console: console being reset
2087 * Restore the unicode console state to its default
2089 void vt_reset_unicode(int console)
2091 unsigned long flags;
2093 spin_lock_irqsave(&kbd_event_lock, flags);
2094 kbd_table[console].kbdmode = default_utf8 ? VC_UNICODE : VC_XLATE;
2095 spin_unlock_irqrestore(&kbd_event_lock, flags);
2099 * vt_get_shiftstate - shift bit state
2101 * Report the shift bits from the keyboard state. We have to export
2102 * this to support some oddities in the vt layer.
2104 int vt_get_shift_state(void)
2106 /* Don't lock as this is a transient report */
2111 * vt_reset_keyboard - reset keyboard state
2112 * @console: console to reset
2114 * Reset the keyboard bits for a console as part of a general console
2117 void vt_reset_keyboard(int console)
2119 struct kbd_struct * kbd = kbd_table + console;
2120 unsigned long flags;
2122 spin_lock_irqsave(&kbd_event_lock, flags);
2123 set_vc_kbd_mode(kbd, VC_REPEAT);
2124 clr_vc_kbd_mode(kbd, VC_CKMODE);
2125 clr_vc_kbd_mode(kbd, VC_APPLIC);
2126 clr_vc_kbd_mode(kbd, VC_CRLF);
2128 kbd->slockstate = 0;
2129 kbd->ledmode = LED_SHOW_FLAGS;
2130 kbd->ledflagstate = kbd->default_ledflagstate;
2131 /* do not do set_leds here because this causes an endless tasklet loop
2132 when the keyboard hasn't been initialized yet */
2133 spin_unlock_irqrestore(&kbd_event_lock, flags);
2137 * vt_get_kbd_mode_bit - read keyboard status bits
2138 * @console: console to read from
2139 * @bit: mode bit to read
2141 * Report back a vt mode bit. We do this without locking so the
2142 * caller must be sure that there are no synchronization needs
2145 int vt_get_kbd_mode_bit(int console, int bit)
2147 struct kbd_struct * kbd = kbd_table + console;
2148 return vc_kbd_mode(kbd, bit);
2152 * vt_set_kbd_mode_bit - read keyboard status bits
2153 * @console: console to read from
2154 * @bit: mode bit to read
2156 * Set a vt mode bit. We do this without locking so the
2157 * caller must be sure that there are no synchronization needs
2160 void vt_set_kbd_mode_bit(int console, int bit)
2162 struct kbd_struct * kbd = kbd_table + console;
2163 unsigned long flags;
2165 spin_lock_irqsave(&kbd_event_lock, flags);
2166 set_vc_kbd_mode(kbd, bit);
2167 spin_unlock_irqrestore(&kbd_event_lock, flags);
2171 * vt_clr_kbd_mode_bit - read keyboard status bits
2172 * @console: console to read from
2173 * @bit: mode bit to read
2175 * Report back a vt mode bit. We do this without locking so the
2176 * caller must be sure that there are no synchronization needs
2179 void vt_clr_kbd_mode_bit(int console, int bit)
2181 struct kbd_struct * kbd = kbd_table + console;
2182 unsigned long flags;
2184 spin_lock_irqsave(&kbd_event_lock, flags);
2185 clr_vc_kbd_mode(kbd, bit);
2186 spin_unlock_irqrestore(&kbd_event_lock, flags);