/*
* linux/drivers/char/keyboard.c
*
* Written for linux by Johan Myreen as a translation from
* the assembly version by Linus (with diacriticals added)
*
* Some additional features added by Christoph Niemann (ChN), March 1993
*
* Loadable keymaps by Risto Kankkunen, May 1993
*
* Diacriticals redone & other small changes, aeb@cwi.nl, June 1993
* Added decr/incr_console, dynamic keymaps, Unicode support,
* dynamic function/string keys, led setting, Sept 1994
* `Sticky' modifier keys, 951006.
*
* 11-11-96: SAK should now work in the raw mode (Martin Mares)
*
* Modified to provide 'generic' keyboard support by Hamish Macdonald
* Merge with the m68k keyboard driver and split-off of the PC low-level
* parts by Geert Uytterhoeven, May 1997
*
* 27-05-97: Added support for the Magic SysRq Key (Martin Mares)
* 30-07-98: Dead keys redone, aeb@cwi.nl.
*/
#include <linux/config.h>
#include <linux/module.h>
#include <linux/sched.h>
#include <linux/tty.h>
#include <linux/tty_flip.h>
#include <linux/mm.h>
#include <linux/string.h>
#include <linux/random.h>
#include <linux/init.h>
#include <asm/keyboard.h>
#include <asm/bitops.h>
#include <linux/kbd_kern.h>
#include <linux/kbd_diacr.h>
#include <linux/vt_kern.h>
#include <linux/kbd_ll.h>
#include <linux/sysrq.h>
#include <linux/pm.h>
#define SIZE(x) (sizeof(x)/sizeof((x)[0]))
#ifndef KBD_DEFMODE
#define KBD_DEFMODE ((1 << VC_REPEAT) | (1 << VC_META))
#endif
#ifndef KBD_DEFLEDS
/*
* Some laptops take the 789uiojklm,. keys as number pad when NumLock
* is on. This seems a good reason to start with NumLock off.
*/
#define KBD_DEFLEDS 0
#endif
#ifndef KBD_DEFLOCK
#define KBD_DEFLOCK 0
#endif
void (*kbd_ledfunc)(unsigned int led);
EXPORT_SYMBOL(handle_scancode);
EXPORT_SYMBOL(kbd_ledfunc);
extern void ctrl_alt_del(void);
DECLARE_WAIT_QUEUE_HEAD(keypress_wait);
struct console;
73 int keyboard_wait_for_keypress(struct console *co)
{
sleep_on(&keypress_wait);
76 return 0;
}
/*
* global state includes the following, and various static variables
* in this module: prev_scancode, shift_state, diacr, npadch, dead_key_next.
* (last_console is now a global variable)
*/
/* shift state counters.. */
static unsigned char k_down[NR_SHIFT];
/* keyboard key bitmap */
static unsigned long key_down[256/BITS_PER_LONG];
static int dead_key_next;
/*
* In order to retrieve the shift_state (for the mouse server), either
* the variable must be global, or a new procedure must be created to
* return the value. I chose the former way.
*/
int shift_state;
static int npadch = -1; /* -1 or number assembled on pad */
static unsigned char diacr;
static char rep; /* flag telling character repeat */
struct kbd_struct kbd_table[MAX_NR_CONSOLES];
static struct tty_struct **ttytab;
static struct kbd_struct * kbd = kbd_table;
static struct tty_struct * tty;
void compute_shiftstate(void);
typedef void (*k_hand)(unsigned char value, char up_flag);
typedef void (k_handfn)(unsigned char value, char up_flag);
static k_handfn
do_self, do_fn, do_spec, do_pad, do_dead, do_cons, do_cur, do_shift,
do_meta, do_ascii, do_lock, do_lowercase, do_slock, do_dead2,
do_ignore;
static k_hand key_handler[16] = {
do_self, do_fn, do_spec, do_pad, do_dead, do_cons, do_cur, do_shift,
do_meta, do_ascii, do_lock, do_lowercase, do_slock, do_dead2,
do_ignore, do_ignore
};
/* Key types processed even in raw modes */
#define TYPES_ALLOWED_IN_RAW_MODE ((1 << KT_SPEC) | (1 << KT_SHIFT))
typedef void (*void_fnp)(void);
typedef void (void_fn)(void);
static void_fn do_null, enter, show_ptregs, send_intr, lastcons, caps_toggle,
num, hold, scroll_forw, scroll_back, boot_it, caps_on, compose,
SAK, decr_console, incr_console, spawn_console, bare_num;
static void_fnp spec_fn_table[] = {
do_null, enter, show_ptregs, show_mem,
show_state, send_intr, lastcons, caps_toggle,
num, hold, scroll_forw, scroll_back,
boot_it, caps_on, compose, SAK,
decr_console, incr_console, spawn_console, bare_num
};
#define SPECIALS_ALLOWED_IN_RAW_MODE (1 << KVAL(K_SAK))
/* maximum values each key_handler can handle */
const int max_vals[] = {
255, SIZE(func_table) - 1, SIZE(spec_fn_table) - 1, NR_PAD - 1,
NR_DEAD - 1, 255, 3, NR_SHIFT - 1,
255, NR_ASCII - 1, NR_LOCK - 1, 255,
NR_LOCK - 1, 255
};
const int NR_TYPES = SIZE(max_vals);
/* N.B. drivers/macintosh/mac_keyb.c needs to call put_queue */
void put_queue(int);
static unsigned char handle_diacr(unsigned char);
/* kbd_pt_regs - set by keyboard_interrupt(), used by show_ptregs() */
struct pt_regs * kbd_pt_regs;
#ifdef CONFIG_MAGIC_SYSRQ
static int sysrq_pressed;
#endif
static struct pm_dev *pm_kbd;
/*
* Many other routines do put_queue, but I think either
* they produce ASCII, or they produce some user-assigned
* string, and in both cases we might assume that it is
* in utf-8 already.
*/
171 void to_utf8(ushort c) {
172 if (c < 0x80)
put_queue(c); /* 0******* */
174 else if (c < 0x800) {
put_queue(0xc0 | (c >> 6)); /* 110***** 10****** */
put_queue(0x80 | (c & 0x3f));
177 } else {
put_queue(0xe0 | (c >> 12)); /* 1110**** 10****** 10****** */
put_queue(0x80 | ((c >> 6) & 0x3f));
put_queue(0x80 | (c & 0x3f));
}
/* UTF-8 is defined for words of up to 31 bits,
but we need only 16 bits here */
}
/*
* Translation of escaped scancodes to keycodes.
* This is now user-settable (for machines were it makes sense).
*/
191 int setkeycode(unsigned int scancode, unsigned int keycode)
{
193 return kbd_setkeycode(scancode, keycode);
}
196 int getkeycode(unsigned int scancode)
{
198 return kbd_getkeycode(scancode);
}
201 void handle_scancode(unsigned char scancode, int down)
{
unsigned char keycode;
char up_flag = down ? 0 : 0200;
char raw_mode;
pm_access(pm_kbd);
do_poke_blanked_console = 1;
tasklet_schedule(&console_tasklet);
add_keyboard_randomness(scancode | up_flag);
tty = ttytab? ttytab[fg_console]: NULL;
214 if (tty && (!tty->driver_data)) {
/*
* We touch the tty structure via the the ttytab array
* without knowing whether or not tty is open, which
* is inherently dangerous. We currently rely on that
* fact that console_open sets tty->driver_data when
* it opens it, and clears it when it closes it.
*/
tty = NULL;
}
kbd = kbd_table + fg_console;
225 if ((raw_mode = (kbd->kbdmode == VC_RAW))) {
put_queue(scancode | up_flag);
/* we do not return yet, because we want to maintain
the key_down array, so that we have the correct
values when finishing RAW mode or when changing VT's */
}
/*
* Convert scancode to keycode
*/
235 if (!kbd_translate(scancode, &keycode, raw_mode))
236 return;
/*
* At this point the variable `keycode' contains the keycode.
* Note: the keycode must not be 0 (++Geert: on m68k 0 is valid).
* We keep track of the up/down status of the key, and
* return the keycode if in MEDIUMRAW mode.
*/
245 if (up_flag) {
rep = 0;
247 if(!test_and_clear_bit(keycode, key_down))
up_flag = kbd_unexpected_up(keycode);
249 } else
rep = test_and_set_bit(keycode, key_down);
#ifdef CONFIG_MAGIC_SYSRQ /* Handle the SysRq Hack */
if (keycode == SYSRQ_KEY) {
sysrq_pressed = !up_flag;
return;
} else if (sysrq_pressed) {
if (!up_flag) {
handle_sysrq(kbd_sysrq_xlate[keycode], kbd_pt_regs, kbd, tty);
return;
}
}
#endif
264 if (kbd->kbdmode == VC_MEDIUMRAW) {
/* soon keycodes will require more than one byte */
put_queue(keycode + up_flag);
raw_mode = 1; /* Most key classes will be ignored */
}
/*
* Small change in philosophy: earlier we defined repetition by
* rep = keycode == prev_keycode;
* prev_keycode = keycode;
* but now by the fact that the depressed key was down already.
* Does this ever make a difference? Yes.
*/
/*
* Repeat a key only if the input buffers are empty or the
* characters get echoed locally. This makes key repeat usable
* with slow applications and under heavy loads.
*/
if (!rep ||
(vc_kbd_mode(kbd,VC_REPEAT) && tty &&
285 (L_ECHO(tty) || (tty->driver.chars_in_buffer(tty) == 0)))) {
u_short keysym;
u_char type;
/* the XOR below used to be an OR */
int shift_final = (shift_state | kbd->slockstate) ^
kbd->lockstate;
ushort *key_map = key_maps[shift_final];
294 if (key_map != NULL) {
keysym = key_map[keycode];
type = KTYP(keysym);
298 if (type >= 0xf0) {
type -= 0xf0;
300 if (raw_mode && ! (TYPES_ALLOWED_IN_RAW_MODE & (1 << type)))
301 return;
302 if (type == KT_LETTER) {
type = KT_LATIN;
304 if (vc_kbd_led(kbd, VC_CAPSLOCK)) {
key_map = key_maps[shift_final ^ (1<<KG_SHIFT)];
306 if (key_map)
keysym = key_map[keycode];
}
}
(*key_handler[type])(keysym & 0xff, up_flag);
311 if (type != KT_SLOCK)
kbd->slockstate = 0;
313 } else {
/* maybe only if (kbd->kbdmode == VC_UNICODE) ? */
315 if (!up_flag && !raw_mode)
to_utf8(keysym);
}
318 } else {
/* maybe beep? */
/* we have at least to update shift_state */
#if 1 /* how? two almost equivalent choices follow */
compute_shiftstate();
kbd->slockstate = 0; /* play it safe */
#else
keysym = U(plain_map[keycode]);
type = KTYP(keysym);
if (type == KT_SHIFT)
(*key_handler[type])(keysym & 0xff, up_flag);
#endif
}
}
}
335 void put_queue(int ch)
{
wake_up(&keypress_wait);
338 if (tty) {
tty_insert_flip_char(tty, ch, 0);
con_schedule_flip(tty);
}
}
344 static void puts_queue(char *cp)
{
wake_up(&keypress_wait);
347 if (!tty)
348 return;
350 while (*cp) {
tty_insert_flip_char(tty, *cp, 0);
cp++;
}
con_schedule_flip(tty);
}
357 static void applkey(int key, char mode)
{
static char buf[] = { 0x1b, 'O', 0x00, 0x00 };
buf[1] = (mode ? 'O' : '[');
buf[2] = key;
puts_queue(buf);
}
366 static void enter(void)
{
368 if (diacr) {
put_queue(diacr);
diacr = 0;
}
put_queue(13);
373 if (vc_kbd_mode(kbd,VC_CRLF))
put_queue(10);
}
377 static void caps_toggle(void)
{
379 if (rep)
380 return;
chg_vc_kbd_led(kbd, VC_CAPSLOCK);
}
384 static void caps_on(void)
{
386 if (rep)
387 return;
set_vc_kbd_led(kbd, VC_CAPSLOCK);
}
391 static void show_ptregs(void)
{
393 if (kbd_pt_regs)
show_regs(kbd_pt_regs);
}
397 static void hold(void)
{
399 if (rep || !tty)
400 return;
/*
* Note: SCROLLOCK will be set (cleared) by stop_tty (start_tty);
* these routines are also activated by ^S/^Q.
* (And SCROLLOCK can also be set by the ioctl KDSKBLED.)
*/
407 if (tty->stopped)
start_tty(tty);
409 else
stop_tty(tty);
}
413 static void num(void)
{
415 if (vc_kbd_mode(kbd,VC_APPLIC))
applkey('P', 1);
417 else
bare_num();
}
/*
* Bind this to Shift-NumLock if you work in application keypad mode
* but want to be able to change the NumLock flag.
* Bind this to NumLock if you prefer that the NumLock key always
* changes the NumLock flag.
*/
427 static void bare_num(void)
{
429 if (!rep)
chg_vc_kbd_led(kbd,VC_NUMLOCK);
}
433 static void lastcons(void)
{
/* switch to the last used console, ChN */
set_console(last_console);
}
439 static void decr_console(void)
{
int i;
443 for (i = fg_console-1; i != fg_console; i--) {
444 if (i == -1)
i = MAX_NR_CONSOLES-1;
446 if (vc_cons_allocated(i))
447 break;
}
set_console(i);
}
452 static void incr_console(void)
{
int i;
456 for (i = fg_console+1; i != fg_console; i++) {
457 if (i == MAX_NR_CONSOLES)
i = 0;
459 if (vc_cons_allocated(i))
460 break;
}
set_console(i);
}
465 static void send_intr(void)
{
467 if (!tty)
468 return;
tty_insert_flip_char(tty, 0, TTY_BREAK);
con_schedule_flip(tty);
}
473 static void scroll_forw(void)
{
scrollfront(0);
}
478 static void scroll_back(void)
{
scrollback(0);
}
483 static void boot_it(void)
{
ctrl_alt_del();
}
488 static void compose(void)
{
dead_key_next = 1;
}
int spawnpid, spawnsig;
495 static void spawn_console(void)
{
497 if (spawnpid)
498 if(kill_proc(spawnpid, spawnsig, 1))
spawnpid = 0;
}
502 static void SAK(void)
{
/*
* SAK should also work in all raw modes and reset
* them properly.
*/
do_SAK(tty);
reset_vc(fg_console);
#if 0
do_unblank_screen(); /* not in interrupt routine? */
#endif
}
516 static void do_ignore(unsigned char value, char up_flag)
{
}
520 static void do_null()
{
compute_shiftstate();
}
525 static void do_spec(unsigned char value, char up_flag)
{
527 if (up_flag)
528 return;
529 if (value >= SIZE(spec_fn_table))
530 return;
if ((kbd->kbdmode == VC_RAW || kbd->kbdmode == VC_MEDIUMRAW) &&
532 !(SPECIALS_ALLOWED_IN_RAW_MODE & (1 << value)))
533 return;
spec_fn_table[value]();
}
537 static void do_lowercase(unsigned char value, char up_flag)
{
printk(KERN_ERR "keyboard.c: do_lowercase was called - impossible\n");
}
542 static void do_self(unsigned char value, char up_flag)
{
544 if (up_flag)
545 return; /* no action, if this is a key release */
547 if (diacr)
value = handle_diacr(value);
550 if (dead_key_next) {
dead_key_next = 0;
diacr = value;
553 return;
}
put_queue(value);
}
#define A_GRAVE '`'
#define A_ACUTE '\''
#define A_CFLEX '^'
#define A_TILDE '~'
#define A_DIAER '"'
#define A_CEDIL ','
static unsigned char ret_diacr[NR_DEAD] =
{A_GRAVE, A_ACUTE, A_CFLEX, A_TILDE, A_DIAER, A_CEDIL };
/* Obsolete - for backwards compatibility only */
569 static void do_dead(unsigned char value, char up_flag)
{
value = ret_diacr[value];
do_dead2(value,up_flag);
}
/*
* Handle dead key. Note that we now may have several
* dead keys modifying the same character. Very useful
* for Vietnamese.
*/
580 static void do_dead2(unsigned char value, char up_flag)
{
582 if (up_flag)
583 return;
diacr = (diacr ? handle_diacr(value) : value);
}
/*
* We have a combining character DIACR here, followed by the character CH.
* If the combination occurs in the table, return the corresponding value.
* Otherwise, if CH is a space or equals DIACR, return DIACR.
* Otherwise, conclude that DIACR was not combining after all,
* queue it and return CH.
*/
596 unsigned char handle_diacr(unsigned char ch)
{
int d = diacr;
int i;
diacr = 0;
603 for (i = 0; i < accent_table_size; i++) {
604 if (accent_table[i].diacr == d && accent_table[i].base == ch)
605 return accent_table[i].result;
}
608 if (ch == ' ' || ch == d)
609 return d;
put_queue(d);
612 return ch;
}
615 static void do_cons(unsigned char value, char up_flag)
{
617 if (up_flag)
618 return;
set_console(value);
}
622 static void do_fn(unsigned char value, char up_flag)
{
624 if (up_flag)
625 return;
626 if (value < SIZE(func_table)) {
627 if (func_table[value])
puts_queue(func_table[value]);
629 } else
printk(KERN_ERR "do_fn called with value=%d\n", value);
}
633 static void do_pad(unsigned char value, char up_flag)
{
static const char *pad_chars = "0123456789+-*/\015,.?()";
static const char *app_map = "pqrstuvwxylSRQMnnmPQ";
638 if (up_flag)
639 return; /* no action, if this is a key release */
/* kludge... shift forces cursor/number keys */
642 if (vc_kbd_mode(kbd,VC_APPLIC) && !k_down[KG_SHIFT]) {
applkey(app_map[value], 1);
644 return;
}
647 if (!vc_kbd_led(kbd,VC_NUMLOCK))
648 switch (value) {
649 case KVAL(K_PCOMMA):
650 case KVAL(K_PDOT):
do_fn(KVAL(K_REMOVE), 0);
652 return;
653 case KVAL(K_P0):
do_fn(KVAL(K_INSERT), 0);
655 return;
656 case KVAL(K_P1):
do_fn(KVAL(K_SELECT), 0);
658 return;
659 case KVAL(K_P2):
do_cur(KVAL(K_DOWN), 0);
661 return;
662 case KVAL(K_P3):
do_fn(KVAL(K_PGDN), 0);
664 return;
665 case KVAL(K_P4):
do_cur(KVAL(K_LEFT), 0);
667 return;
668 case KVAL(K_P6):
do_cur(KVAL(K_RIGHT), 0);
670 return;
671 case KVAL(K_P7):
do_fn(KVAL(K_FIND), 0);
673 return;
674 case KVAL(K_P8):
do_cur(KVAL(K_UP), 0);
676 return;
677 case KVAL(K_P9):
do_fn(KVAL(K_PGUP), 0);
679 return;
680 case KVAL(K_P5):
applkey('G', vc_kbd_mode(kbd, VC_APPLIC));
682 return;
}
put_queue(pad_chars[value]);
686 if (value == KVAL(K_PENTER) && vc_kbd_mode(kbd, VC_CRLF))
put_queue(10);
}
690 static void do_cur(unsigned char value, char up_flag)
{
static const char *cur_chars = "BDCA";
693 if (up_flag)
694 return;
applkey(cur_chars[value], vc_kbd_mode(kbd,VC_CKMODE));
}
699 static void do_shift(unsigned char value, char up_flag)
{
int old_state = shift_state;
703 if (rep)
704 return;
/* Mimic typewriter:
a CapsShift key acts like Shift but undoes CapsLock */
708 if (value == KVAL(K_CAPSSHIFT)) {
value = KVAL(K_SHIFT);
710 if (!up_flag)
clr_vc_kbd_led(kbd, VC_CAPSLOCK);
}
714 if (up_flag) {
/* handle the case that two shift or control
keys are depressed simultaneously */
717 if (k_down[value])
k_down[value]--;
719 } else
k_down[value]++;
722 if (k_down[value])
shift_state |= (1 << value);
724 else
shift_state &= ~ (1 << value);
/* kludge */
728 if (up_flag && shift_state != old_state && npadch != -1) {
729 if (kbd->kbdmode == VC_UNICODE)
to_utf8(npadch & 0xffff);
731 else
put_queue(npadch & 0xff);
npadch = -1;
}
}
/* called after returning from RAW mode or when changing consoles -
recompute k_down[] and shift_state from key_down[] */
/* maybe called when keymap is undefined, so that shiftkey release is seen */
740 void compute_shiftstate(void)
{
int i, j, k, sym, val;
shift_state = 0;
745 for(i=0; i < SIZE(k_down); i++)
k_down[i] = 0;
748 for(i=0; i < SIZE(key_down); i++)
749 if(key_down[i]) { /* skip this word if not a single bit on */
k = i*BITS_PER_LONG;
751 for(j=0; j<BITS_PER_LONG; j++,k++)
752 if(test_bit(k, key_down)) {
sym = U(plain_map[k]);
754 if(KTYP(sym) == KT_SHIFT || KTYP(sym) == KT_SLOCK) {
val = KVAL(sym);
756 if (val == KVAL(K_CAPSSHIFT))
val = KVAL(K_SHIFT);
k_down[val]++;
shift_state |= (1<<val);
}
}
}
}
765 static void do_meta(unsigned char value, char up_flag)
{
767 if (up_flag)
768 return;
770 if (vc_kbd_mode(kbd, VC_META)) {
put_queue('\033');
put_queue(value);
773 } else
put_queue(value | 0x80);
}
777 static void do_ascii(unsigned char value, char up_flag)
{
int base;
781 if (up_flag)
782 return;
784 if (value < 10) /* decimal input of code, while Alt depressed */
base = 10;
786 else { /* hexadecimal input of code, while AltGr depressed */
value -= 10;
base = 16;
}
791 if (npadch == -1)
npadch = value;
793 else
npadch = npadch * base + value;
}
797 static void do_lock(unsigned char value, char up_flag)
{
799 if (up_flag || rep)
800 return;
chg_vc_kbd_lock(kbd, value);
}
804 static void do_slock(unsigned char value, char up_flag)
{
do_shift(value,up_flag);
807 if (up_flag || rep)
808 return;
chg_vc_kbd_slock(kbd, value);
/* try to make Alt, oops, AltGr and such work */
811 if (!key_maps[kbd->lockstate ^ kbd->slockstate]) {
kbd->slockstate = 0;
chg_vc_kbd_slock(kbd, value);
}
}
/*
* The leds display either (i) the status of NumLock, CapsLock, ScrollLock,
* or (ii) whatever pattern of lights people want to show using KDSETLED,
* or (iii) specified bits of specified words in kernel memory.
*/
static unsigned char ledstate = 0xff; /* undefined */
static unsigned char ledioctl;
826 unsigned char getledstate(void) {
827 return ledstate;
}
830 void setledstate(struct kbd_struct *kbd, unsigned int led) {
831 if (!(led & ~7)) {
ledioctl = led;
kbd->ledmode = LED_SHOW_IOCTL;
834 } else
kbd->ledmode = LED_SHOW_FLAGS;
set_leds();
}
static struct ledptr {
unsigned int *addr;
unsigned int mask;
unsigned char valid:1;
} ledptrs[3];
845 void register_leds(int console, unsigned int led,
unsigned int *addr, unsigned int mask) {
struct kbd_struct *kbd = kbd_table + console;
848 if (led < 3) {
ledptrs[led].addr = addr;
ledptrs[led].mask = mask;
ledptrs[led].valid = 1;
kbd->ledmode = LED_SHOW_MEM;
853 } else
kbd->ledmode = LED_SHOW_FLAGS;
}
857 static inline unsigned char getleds(void){
struct kbd_struct *kbd = kbd_table + fg_console;
unsigned char leds;
861 if (kbd->ledmode == LED_SHOW_IOCTL)
862 return ledioctl;
leds = kbd->ledflagstate;
864 if (kbd->ledmode == LED_SHOW_MEM) {
865 if (ledptrs[0].valid) {
866 if (*ledptrs[0].addr & ledptrs[0].mask)
leds |= 1;
868 else
leds &= ~1;
}
871 if (ledptrs[1].valid) {
872 if (*ledptrs[1].addr & ledptrs[1].mask)
leds |= 2;
874 else
leds &= ~2;
}
877 if (ledptrs[2].valid) {
878 if (*ledptrs[2].addr & ledptrs[2].mask)
leds |= 4;
880 else
leds &= ~4;
}
}
884 return leds;
}
/*
* This routine is the bottom half of the keyboard interrupt
* routine, and runs with all interrupts enabled. It does
* console changing, led setting and copy_to_cooked, which can
* take a reasonably long time.
*
* Aside from timing (which isn't really that important for
* keyboard interrupts as they happen often), using the software
* interrupt routines for this thing allows us to easily mask
* this when we don't want any of the above to happen. Not yet
* used, but this allows for easy and efficient race-condition
* prevention later on.
*/
900 static void kbd_bh(unsigned long dummy)
{
unsigned char leds = getleds();
904 if (leds != ledstate) {
ledstate = leds;
kbd_leds(leds);
907 if (kbd_ledfunc) kbd_ledfunc(leds);
}
}
EXPORT_SYMBOL(keyboard_tasklet);
DECLARE_TASKLET_DISABLED(keyboard_tasklet, kbd_bh, 0);
914 int __init kbd_init(void)
{
int i;
struct kbd_struct kbd0;
extern struct tty_driver console_driver;
kbd0.ledflagstate = kbd0.default_ledflagstate = KBD_DEFLEDS;
kbd0.ledmode = LED_SHOW_FLAGS;
kbd0.lockstate = KBD_DEFLOCK;
kbd0.slockstate = 0;
kbd0.modeflags = KBD_DEFMODE;
kbd0.kbdmode = VC_XLATE;
927 for (i = 0 ; i < MAX_NR_CONSOLES ; i++)
kbd_table[i] = kbd0;
ttytab = console_driver.table;
kbd_init_hw();
tasklet_enable(&keyboard_tasklet);
tasklet_schedule(&keyboard_tasklet);
pm_kbd = pm_register(PM_SYS_DEV, PM_SYS_KBC, NULL);
939 return 0;
}