2 * linux/drivers/char/keyboard.c
4 * Written for linux by Johan Myreen as a translation from
5 * the assembly version by Linus (with diacriticals added)
7 * Some additional features added by Christoph Niemann (ChN), March 1993
9 * Loadable keymaps by Risto Kankkunen, May 1993
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.
16 * 11-11-96: SAK should now work in the raw mode (Martin Mares)
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
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)
27 #include <linux/config.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/sysrq.h>
41 #include <linux/input.h>
43 static void kbd_disconnect(struct input_handle *handle);
44 extern void ctrl_alt_del(void);
47 * Exported functions/variables
50 #define KBD_DEFMODE ((1 << VC_REPEAT) | (1 << VC_META))
53 * Some laptops take the 789uiojklm,. keys as number pad when NumLock is on.
54 * This seems a good reason to start with NumLock off. On HIL keyboards
55 * of PARISC machines however there is no NumLock key and everyone expects the keypad
56 * to be used for numbers.
59 #if defined(CONFIG_PARISC) && (defined(CONFIG_KEYBOARD_HIL) || defined(CONFIG_KEYBOARD_HIL_OLD))
60 #define KBD_DEFLEDS (1 << VC_NUMLOCK)
67 void compute_shiftstate(void);
74 k_self, k_fn, k_spec, k_pad,\
75 k_dead, k_cons, k_cur, k_shift,\
76 k_meta, k_ascii, k_lock, k_lowercase,\
77 k_slock, k_dead2, k_ignore, k_ignore
79 typedef void (k_handler_fn)(struct vc_data *vc, unsigned char value,
80 char up_flag, struct pt_regs *regs);
81 static k_handler_fn K_HANDLERS;
82 static k_handler_fn *k_handler[16] = { K_HANDLERS };
85 fn_null, fn_enter, fn_show_ptregs, fn_show_mem,\
86 fn_show_state, fn_send_intr, fn_lastcons, fn_caps_toggle,\
87 fn_num, fn_hold, fn_scroll_forw, fn_scroll_back,\
88 fn_boot_it, fn_caps_on, fn_compose, fn_SAK,\
89 fn_dec_console, fn_inc_console, fn_spawn_con, fn_bare_num
91 typedef void (fn_handler_fn)(struct vc_data *vc, struct pt_regs *regs);
92 static fn_handler_fn FN_HANDLERS;
93 static fn_handler_fn *fn_handler[] = { FN_HANDLERS };
96 * Variables exported for vt_ioctl.c
99 /* maximum values each key_handler can handle */
100 const int max_vals[] = {
101 255, ARRAY_SIZE(func_table) - 1, ARRAY_SIZE(fn_handler) - 1, NR_PAD - 1,
102 NR_DEAD - 1, 255, 3, NR_SHIFT - 1, 255, NR_ASCII - 1, NR_LOCK - 1,
103 255, NR_LOCK - 1, 255
106 const int NR_TYPES = ARRAY_SIZE(max_vals);
108 struct kbd_struct kbd_table[MAX_NR_CONSOLES];
109 static struct kbd_struct *kbd = kbd_table;
110 static struct kbd_struct kbd0;
112 int spawnpid, spawnsig;
115 * Variables exported for vt.c
124 static struct input_handler kbd_handler;
125 static unsigned long key_down[NBITS(KEY_MAX)]; /* keyboard key bitmap */
126 static unsigned char shift_down[NR_SHIFT]; /* shift state counters.. */
127 static int dead_key_next;
128 static int npadch = -1; /* -1 or number assembled on pad */
129 static unsigned char diacr;
130 static char rep; /* flag telling character repeat */
132 static unsigned char ledstate = 0xff; /* undefined */
133 static unsigned char ledioctl;
135 static struct ledptr {
138 unsigned char valid:1;
141 /* Simple translation table for the SysRq keys */
143 #ifdef CONFIG_MAGIC_SYSRQ
144 unsigned char kbd_sysrq_xlate[KEY_MAX + 1] =
145 "\000\0331234567890-=\177\t" /* 0x00 - 0x0f */
146 "qwertyuiop[]\r\000as" /* 0x10 - 0x1f */
147 "dfghjkl;'`\000\\zxcv" /* 0x20 - 0x2f */
148 "bnm,./\000*\000 \000\201\202\203\204\205" /* 0x30 - 0x3f */
149 "\206\207\210\211\212\000\000789-456+1" /* 0x40 - 0x4f */
150 "230\177\000\000\213\214\000\000\000\000\000\000\000\000\000\000" /* 0x50 - 0x5f */
151 "\r\000/"; /* 0x60 - 0x6f */
152 static int sysrq_down;
154 static int sysrq_alt;
157 * Translation of scancodes to keycodes. We set them on only the first attached
158 * keyboard - for per-keyboard setting, /dev/input/event is more useful.
160 int getkeycode(unsigned int scancode)
162 struct list_head * node;
163 struct input_dev *dev = NULL;
165 list_for_each(node,&kbd_handler.h_list) {
166 struct input_handle * handle = to_handle_h(node);
167 if (handle->dev->keycodesize) {
176 if (scancode >= dev->keycodemax)
179 return INPUT_KEYCODE(dev, scancode);
182 int setkeycode(unsigned int scancode, unsigned int keycode)
184 struct list_head * node;
185 struct input_dev *dev = NULL;
186 unsigned int i, oldkey;
188 list_for_each(node,&kbd_handler.h_list) {
189 struct input_handle *handle = to_handle_h(node);
190 if (handle->dev->keycodesize) {
199 if (scancode >= dev->keycodemax)
201 if (keycode > KEY_MAX)
203 if (keycode < 0 || keycode > KEY_MAX)
206 oldkey = SET_INPUT_KEYCODE(dev, scancode, keycode);
208 clear_bit(oldkey, dev->keybit);
209 set_bit(keycode, dev->keybit);
211 for (i = 0; i < dev->keycodemax; i++)
212 if (INPUT_KEYCODE(dev,i) == oldkey)
213 set_bit(oldkey, dev->keybit);
219 * Making beeps and bells.
221 static void kd_nosound(unsigned long ignored)
223 struct list_head * node;
225 list_for_each(node,&kbd_handler.h_list) {
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))
229 input_event(handle->dev, EV_SND, SND_TONE, 0);
230 if (test_bit(SND_BELL, handle->dev->sndbit))
231 input_event(handle->dev, EV_SND, SND_BELL, 0);
236 static struct timer_list kd_mksound_timer =
237 TIMER_INITIALIZER(kd_nosound, 0, 0);
239 void kd_mksound(unsigned int hz, unsigned int ticks)
241 struct list_head * node;
243 del_timer(&kd_mksound_timer);
246 list_for_each_prev(node,&kbd_handler.h_list) {
247 struct input_handle *handle = to_handle_h(node);
248 if (test_bit(EV_SND, handle->dev->evbit)) {
249 if (test_bit(SND_TONE, handle->dev->sndbit)) {
250 input_event(handle->dev, EV_SND, SND_TONE, hz);
253 if (test_bit(SND_BELL, handle->dev->sndbit)) {
254 input_event(handle->dev, EV_SND, SND_BELL, 1);
260 mod_timer(&kd_mksound_timer, jiffies + ticks);
266 * Setting the keyboard rate.
269 int kbd_rate(struct kbd_repeat *rep)
271 struct list_head *node;
275 list_for_each(node,&kbd_handler.h_list) {
276 struct input_handle *handle = to_handle_h(node);
277 struct input_dev *dev = handle->dev;
279 if (test_bit(EV_REP, dev->evbit)) {
281 input_event(dev, EV_REP, REP_DELAY, rep->delay);
283 input_event(dev, EV_REP, REP_PERIOD, rep->period);
284 d = dev->rep[REP_DELAY];
285 p = dev->rep[REP_PERIOD];
296 static void put_queue(struct vc_data *vc, int ch)
298 struct tty_struct *tty = vc->vc_tty;
301 tty_insert_flip_char(tty, ch, 0);
302 con_schedule_flip(tty);
306 static void puts_queue(struct vc_data *vc, char *cp)
308 struct tty_struct *tty = vc->vc_tty;
314 tty_insert_flip_char(tty, *cp, 0);
317 con_schedule_flip(tty);
320 static void applkey(struct vc_data *vc, int key, char mode)
322 static char buf[] = { 0x1b, 'O', 0x00, 0x00 };
324 buf[1] = (mode ? 'O' : '[');
330 * Many other routines do put_queue, but I think either
331 * they produce ASCII, or they produce some user-assigned
332 * string, and in both cases we might assume that it is
333 * in utf-8 already. UTF-8 is defined for words of up to 31 bits,
334 * but we need only 16 bits here
336 static void to_utf8(struct vc_data *vc, ushort c)
341 else if (c < 0x800) {
342 /* 110***** 10****** */
343 put_queue(vc, 0xc0 | (c >> 6));
344 put_queue(vc, 0x80 | (c & 0x3f));
346 /* 1110**** 10****** 10****** */
347 put_queue(vc, 0xe0 | (c >> 12));
348 put_queue(vc, 0x80 | ((c >> 6) & 0x3f));
349 put_queue(vc, 0x80 | (c & 0x3f));
354 * Called after returning from RAW mode or when changing consoles - recompute
355 * shift_down[] and shift_state from key_down[] maybe called when keymap is
356 * undefined, so that shiftkey release is seen
358 void compute_shiftstate(void)
360 unsigned int i, j, k, sym, val;
363 memset(shift_down, 0, sizeof(shift_down));
365 for (i = 0; i < ARRAY_SIZE(key_down); i++) {
370 k = i * BITS_PER_LONG;
372 for (j = 0; j < BITS_PER_LONG; j++, k++) {
374 if (!test_bit(k, key_down))
377 sym = U(key_maps[0][k]);
378 if (KTYP(sym) != KT_SHIFT && KTYP(sym) != KT_SLOCK)
382 if (val == KVAL(K_CAPSSHIFT))
386 shift_state |= (1 << val);
392 * We have a combining character DIACR here, followed by the character CH.
393 * If the combination occurs in the table, return the corresponding value.
394 * Otherwise, if CH is a space or equals DIACR, return DIACR.
395 * Otherwise, conclude that DIACR was not combining after all,
396 * queue it and return CH.
398 static unsigned char handle_diacr(struct vc_data *vc, unsigned char ch)
405 for (i = 0; i < accent_table_size; i++) {
406 if (accent_table[i].diacr == d && accent_table[i].base == ch)
407 return accent_table[i].result;
410 if (ch == ' ' || ch == d)
418 * Special function handlers
420 static void fn_enter(struct vc_data *vc, struct pt_regs *regs)
423 put_queue(vc, diacr);
427 if (vc_kbd_mode(kbd, VC_CRLF))
431 static void fn_caps_toggle(struct vc_data *vc, struct pt_regs *regs)
435 chg_vc_kbd_led(kbd, VC_CAPSLOCK);
438 static void fn_caps_on(struct vc_data *vc, struct pt_regs *regs)
442 set_vc_kbd_led(kbd, VC_CAPSLOCK);
445 static void fn_show_ptregs(struct vc_data *vc, struct pt_regs *regs)
451 static void fn_hold(struct vc_data *vc, struct pt_regs *regs)
453 struct tty_struct *tty = vc->vc_tty;
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.)
469 static void fn_num(struct vc_data *vc, struct pt_regs *regs)
471 if (vc_kbd_mode(kbd,VC_APPLIC))
474 fn_bare_num(vc, regs);
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.
483 static void fn_bare_num(struct vc_data *vc, struct pt_regs *regs)
486 chg_vc_kbd_led(kbd, VC_NUMLOCK);
489 static void fn_lastcons(struct vc_data *vc, struct pt_regs *regs)
491 /* switch to the last used console, ChN */
492 set_console(last_console);
495 static void fn_dec_console(struct vc_data *vc, struct pt_regs *regs)
497 int i, cur = fg_console;
499 /* Currently switching? Queue this next switch relative to that. */
500 if (want_console != -1)
503 for (i = cur-1; i != cur; i--) {
505 i = MAX_NR_CONSOLES-1;
506 if (vc_cons_allocated(i))
512 static void fn_inc_console(struct vc_data *vc, struct pt_regs *regs)
514 int i, cur = fg_console;
516 /* Currently switching? Queue this next switch relative to that. */
517 if (want_console != -1)
520 for (i = cur+1; i != cur; i++) {
521 if (i == MAX_NR_CONSOLES)
523 if (vc_cons_allocated(i))
529 static void fn_send_intr(struct vc_data *vc, struct pt_regs *regs)
531 struct tty_struct *tty = vc->vc_tty;
535 tty_insert_flip_char(tty, 0, TTY_BREAK);
536 con_schedule_flip(tty);
539 static void fn_scroll_forw(struct vc_data *vc, struct pt_regs *regs)
544 static void fn_scroll_back(struct vc_data *vc, struct pt_regs *regs)
549 static void fn_show_mem(struct vc_data *vc, struct pt_regs *regs)
554 static void fn_show_state(struct vc_data *vc, struct pt_regs *regs)
559 static void fn_boot_it(struct vc_data *vc, struct pt_regs *regs)
564 static void fn_compose(struct vc_data *vc, struct pt_regs *regs)
569 static void fn_spawn_con(struct vc_data *vc, struct pt_regs *regs)
572 if(kill_proc(spawnpid, spawnsig, 1))
576 static void fn_SAK(struct vc_data *vc, struct pt_regs *regs)
578 struct tty_struct *tty = vc->vc_tty;
581 * SAK should also work in all raw modes and reset
589 static void fn_null(struct vc_data *vc, struct pt_regs *regs)
591 compute_shiftstate();
595 * Special key handlers
597 static void k_ignore(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs)
601 static void k_spec(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs)
605 if (value >= ARRAY_SIZE(fn_handler))
607 if ((kbd->kbdmode == VC_RAW ||
608 kbd->kbdmode == VC_MEDIUMRAW) &&
609 value != KVAL(K_SAK))
610 return; /* SAK is allowed even in raw mode */
611 fn_handler[value](vc, regs);
614 static void k_lowercase(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs)
616 printk(KERN_ERR "keyboard.c: k_lowercase was called - impossible\n");
619 static void k_self(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs)
622 return; /* no action, if this is a key release */
625 value = handle_diacr(vc, value);
632 put_queue(vc, value);
636 * Handle dead key. Note that we now may have several
637 * dead keys modifying the same character. Very useful
640 static void k_dead2(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs)
644 diacr = (diacr ? handle_diacr(vc, value) : value);
648 * Obsolete - for backwards compatibility only
650 static void k_dead(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs)
652 static unsigned char ret_diacr[NR_DEAD] = {'`', '\'', '^', '~', '"', ',' };
653 value = ret_diacr[value];
654 k_dead2(vc, value, up_flag, regs);
657 static void k_cons(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs)
664 static void k_fn(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs)
671 if (v < ARRAY_SIZE(func_table)) {
672 if (func_table[value])
673 puts_queue(vc, func_table[value]);
675 printk(KERN_ERR "k_fn called with value=%d\n", value);
678 static void k_cur(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs)
680 static const char *cur_chars = "BDCA";
684 applkey(vc, cur_chars[value], vc_kbd_mode(kbd, VC_CKMODE));
687 static void k_pad(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs)
689 static const char *pad_chars = "0123456789+-*/\015,.?()#";
690 static const char *app_map = "pqrstuvwxylSRQMnnmPQS";
693 return; /* no action, if this is a key release */
695 /* kludge... shift forces cursor/number keys */
696 if (vc_kbd_mode(kbd, VC_APPLIC) && !shift_down[KG_SHIFT]) {
697 applkey(vc, app_map[value], 1);
701 if (!vc_kbd_led(kbd, VC_NUMLOCK))
705 k_fn(vc, KVAL(K_REMOVE), 0, regs);
708 k_fn(vc, KVAL(K_INSERT), 0, regs);
711 k_fn(vc, KVAL(K_SELECT), 0, regs);
714 k_cur(vc, KVAL(K_DOWN), 0, regs);
717 k_fn(vc, KVAL(K_PGDN), 0, regs);
720 k_cur(vc, KVAL(K_LEFT), 0, regs);
723 k_cur(vc, KVAL(K_RIGHT), 0, regs);
726 k_fn(vc, KVAL(K_FIND), 0, regs);
729 k_cur(vc, KVAL(K_UP), 0, regs);
732 k_fn(vc, KVAL(K_PGUP), 0, regs);
735 applkey(vc, 'G', vc_kbd_mode(kbd, VC_APPLIC));
739 put_queue(vc, pad_chars[value]);
740 if (value == KVAL(K_PENTER) && vc_kbd_mode(kbd, VC_CRLF))
744 static void k_shift(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs)
746 int old_state = shift_state;
752 * a CapsShift key acts like Shift but undoes CapsLock
754 if (value == KVAL(K_CAPSSHIFT)) {
755 value = KVAL(K_SHIFT);
757 clr_vc_kbd_led(kbd, VC_CAPSLOCK);
762 * handle the case that two shift or control
763 * keys are depressed simultaneously
765 if (shift_down[value])
770 if (shift_down[value])
771 shift_state |= (1 << value);
773 shift_state &= ~(1 << value);
776 if (up_flag && shift_state != old_state && npadch != -1) {
777 if (kbd->kbdmode == VC_UNICODE)
778 to_utf8(vc, npadch & 0xffff);
780 put_queue(vc, npadch & 0xff);
785 static void k_meta(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs)
790 if (vc_kbd_mode(kbd, VC_META)) {
791 put_queue(vc, '\033');
792 put_queue(vc, value);
794 put_queue(vc, value | 0x80);
797 static void k_ascii(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs)
805 /* decimal input of code, while Alt depressed */
808 /* hexadecimal input of code, while AltGr depressed */
816 npadch = npadch * base + value;
819 static void k_lock(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs)
823 chg_vc_kbd_lock(kbd, value);
826 static void k_slock(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs)
828 k_shift(vc, value, up_flag, regs);
831 chg_vc_kbd_slock(kbd, value);
832 /* try to make Alt, oops, AltGr and such work */
833 if (!key_maps[kbd->lockstate ^ kbd->slockstate]) {
835 chg_vc_kbd_slock(kbd, value);
840 * The leds display either (i) the status of NumLock, CapsLock, ScrollLock,
841 * or (ii) whatever pattern of lights people want to show using KDSETLED,
842 * or (iii) specified bits of specified words in kernel memory.
844 unsigned char getledstate(void)
849 void setledstate(struct kbd_struct *kbd, unsigned int led)
853 kbd->ledmode = LED_SHOW_IOCTL;
855 kbd->ledmode = LED_SHOW_FLAGS;
859 static inline unsigned char getleds(void)
861 struct kbd_struct *kbd = kbd_table + fg_console;
865 if (kbd->ledmode == LED_SHOW_IOCTL)
868 leds = kbd->ledflagstate;
870 if (kbd->ledmode == LED_SHOW_MEM) {
871 for (i = 0; i < 3; i++)
872 if (ledptrs[i].valid) {
873 if (*ledptrs[i].addr & ledptrs[i].mask)
883 * This routine is the bottom half of the keyboard interrupt
884 * routine, and runs with all interrupts enabled. It does
885 * console changing, led setting and copy_to_cooked, which can
886 * take a reasonably long time.
888 * Aside from timing (which isn't really that important for
889 * keyboard interrupts as they happen often), using the software
890 * interrupt routines for this thing allows us to easily mask
891 * this when we don't want any of the above to happen.
892 * This allows for easy and efficient race-condition prevention
893 * for kbd_refresh_leds => input_event(dev, EV_LED, ...) => ...
896 static void kbd_bh(unsigned long dummy)
898 struct list_head * node;
899 unsigned char leds = getleds();
901 if (leds != ledstate) {
902 list_for_each(node,&kbd_handler.h_list) {
903 struct input_handle * handle = to_handle_h(node);
904 input_event(handle->dev, EV_LED, LED_SCROLLL, !!(leds & 0x01));
905 input_event(handle->dev, EV_LED, LED_NUML, !!(leds & 0x02));
906 input_event(handle->dev, EV_LED, LED_CAPSL, !!(leds & 0x04));
907 input_sync(handle->dev);
914 DECLARE_TASKLET_DISABLED(keyboard_tasklet, kbd_bh, 0);
917 * This allows a newly plugged keyboard to pick the LED state.
919 static void kbd_refresh_leds(struct input_handle *handle)
921 unsigned char leds = ledstate;
923 tasklet_disable(&keyboard_tasklet);
925 input_event(handle->dev, EV_LED, LED_SCROLLL, !!(leds & 0x01));
926 input_event(handle->dev, EV_LED, LED_NUML, !!(leds & 0x02));
927 input_event(handle->dev, EV_LED, LED_CAPSL, !!(leds & 0x04));
928 input_sync(handle->dev);
930 tasklet_enable(&keyboard_tasklet);
933 #if defined(CONFIG_X86) || defined(CONFIG_IA64) || defined(CONFIG_ALPHA) ||\
934 defined(CONFIG_MIPS) || defined(CONFIG_PPC) || defined(CONFIG_SPARC32) ||\
935 defined(CONFIG_SPARC64) || defined(CONFIG_PARISC) || defined(CONFIG_SUPERH) ||\
936 (defined(CONFIG_ARM) && defined(CONFIG_KEYBOARD_ATKBD) && !defined(CONFIG_ARCH_RPC))
938 #define HW_RAW(dev) (test_bit(EV_MSC, dev->evbit) && test_bit(MSC_RAW, dev->mscbit) &&\
939 ((dev)->id.bustype == BUS_I8042) && ((dev)->id.vendor == 0x0001) && ((dev)->id.product == 0x0001))
941 static unsigned short x86_keycodes[256] =
942 { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
943 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
944 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
945 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
946 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
947 80, 81, 82, 83, 84,118, 86, 87, 88,115,120,119,121,112,123, 92,
948 284,285,309,298,312, 91,327,328,329,331,333,335,336,337,338,339,
949 367,288,302,304,350, 89,334,326,267,126,268,269,125,347,348,349,
950 360,261,262,263,268,376,100,101,321,316,373,286,289,102,351,355,
951 103,104,105,275,287,279,306,106,274,107,294,364,358,363,362,361,
952 291,108,381,281,290,272,292,305,280, 99,112,257,258,359,113,114,
953 264,117,271,374,379,265,266, 93, 94, 95, 85,259,375,260, 90,116,
954 377,109,111,277,278,282,283,295,296,297,299,300,301,293,303,307,
955 308,310,313,314,315,317,318,319,320,357,322,323,324,325,276,330,
956 332,340,365,342,343,344,345,346,356,270,341,368,369,370,371,372 };
958 #ifdef CONFIG_MAC_EMUMOUSEBTN
959 extern int mac_hid_mouse_emulate_buttons(int, int, int);
960 #endif /* CONFIG_MAC_EMUMOUSEBTN */
962 #if defined(CONFIG_SPARC32) || defined(CONFIG_SPARC64)
963 static int sparc_l1_a_state = 0;
964 extern void sun_do_break(void);
967 static int emulate_raw(struct vc_data *vc, unsigned int keycode,
968 unsigned char up_flag)
970 if (keycode > 255 || !x86_keycodes[keycode])
976 put_queue(vc, 0x1d | up_flag);
977 put_queue(vc, 0x45 | up_flag);
980 if (!up_flag) put_queue(vc, 0xf1);
983 if (!up_flag) put_queue(vc, 0xf2);
987 if (keycode == KEY_SYSRQ && sysrq_alt) {
988 put_queue(vc, 0x54 | up_flag);
992 if (x86_keycodes[keycode] & 0x100)
995 put_queue(vc, (x86_keycodes[keycode] & 0x7f) | up_flag);
997 if (keycode == KEY_SYSRQ) {
999 put_queue(vc, 0x37 | up_flag);
1007 #define HW_RAW(dev) 0
1009 #warning "Cannot generate rawmode keyboard for your architecture yet."
1011 static int emulate_raw(struct vc_data *vc, unsigned int keycode, unsigned char up_flag)
1016 put_queue(vc, keycode | up_flag);
1021 static void kbd_rawcode(unsigned char data)
1023 struct vc_data *vc = vc_cons[fg_console].d;
1024 kbd = kbd_table + fg_console;
1025 if (kbd->kbdmode == VC_RAW)
1026 put_queue(vc, data);
1029 static void kbd_keycode(unsigned int keycode, int down,
1030 int hw_raw, struct pt_regs *regs)
1032 struct vc_data *vc = vc_cons[fg_console].d;
1033 unsigned short keysym, *key_map;
1034 unsigned char type, raw_mode;
1035 struct tty_struct *tty;
1040 if (tty && (!tty->driver_data)) {
1041 /* No driver data? Strange. Okay we fix it then. */
1042 tty->driver_data = vc;
1045 kbd = kbd_table + fg_console;
1047 if (keycode == KEY_LEFTALT || keycode == KEY_RIGHTALT)
1049 #if defined(CONFIG_SPARC32) || defined(CONFIG_SPARC64)
1050 if (keycode == KEY_STOP)
1051 sparc_l1_a_state = down;
1056 #ifdef CONFIG_MAC_EMUMOUSEBTN
1057 if (mac_hid_mouse_emulate_buttons(1, keycode, down))
1059 #endif /* CONFIG_MAC_EMUMOUSEBTN */
1061 if ((raw_mode = (kbd->kbdmode == VC_RAW)) && !hw_raw)
1062 if (emulate_raw(vc, keycode, !down << 7))
1063 if (keycode < BTN_MISC)
1064 printk(KERN_WARNING "keyboard.c: can't emulate rawmode for keycode %d\n", keycode);
1066 #ifdef CONFIG_MAGIC_SYSRQ /* Handle the SysRq Hack */
1067 if (keycode == KEY_SYSRQ && (sysrq_down || (down == 1 && sysrq_alt))) {
1071 if (sysrq_down && down && !rep) {
1072 handle_sysrq(kbd_sysrq_xlate[keycode], regs, tty);
1076 #if defined(CONFIG_SPARC32) || defined(CONFIG_SPARC64)
1077 if (keycode == KEY_A && sparc_l1_a_state) {
1078 sparc_l1_a_state = 0;
1083 if (kbd->kbdmode == VC_MEDIUMRAW) {
1085 * This is extended medium raw mode, with keys above 127
1086 * encoded as 0, high 7 bits, low 7 bits, with the 0 bearing
1087 * the 'up' flag if needed. 0 is reserved, so this shouldn't
1088 * interfere with anything else. The two bytes after 0 will
1089 * always have the up flag set not to interfere with older
1090 * applications. This allows for 16384 different keycodes,
1091 * which should be enough.
1093 if (keycode < 128) {
1094 put_queue(vc, keycode | (!down << 7));
1096 put_queue(vc, !down << 7);
1097 put_queue(vc, (keycode >> 7) | 0x80);
1098 put_queue(vc, keycode | 0x80);
1104 set_bit(keycode, key_down);
1106 clear_bit(keycode, key_down);
1108 if (rep && (!vc_kbd_mode(kbd, VC_REPEAT) || (tty &&
1109 (!L_ECHO(tty) && tty->driver->chars_in_buffer(tty))))) {
1111 * Don't repeat a key if the input buffers are not empty and the
1112 * characters get aren't echoed locally. This makes key repeat
1113 * usable with slow applications and under heavy loads.
1118 shift_final = (shift_state | kbd->slockstate) ^ kbd->lockstate;
1119 key_map = key_maps[shift_final];
1122 compute_shiftstate();
1123 kbd->slockstate = 0;
1127 if (keycode > NR_KEYS)
1130 keysym = key_map[keycode];
1131 type = KTYP(keysym);
1134 if (down && !raw_mode) to_utf8(vc, keysym);
1140 if (raw_mode && type != KT_SPEC && type != KT_SHIFT)
1143 if (type == KT_LETTER) {
1145 if (vc_kbd_led(kbd, VC_CAPSLOCK)) {
1146 key_map = key_maps[shift_final ^ (1 << KG_SHIFT)];
1148 keysym = key_map[keycode];
1152 (*k_handler[type])(vc, keysym & 0xff, !down, regs);
1154 if (type != KT_SLOCK)
1155 kbd->slockstate = 0;
1158 static void kbd_event(struct input_handle *handle, unsigned int event_type,
1159 unsigned int event_code, int value)
1161 if (event_type == EV_MSC && event_code == MSC_RAW && HW_RAW(handle->dev))
1163 if (event_type == EV_KEY)
1164 kbd_keycode(event_code, value, HW_RAW(handle->dev), handle->dev->regs);
1165 tasklet_schedule(&keyboard_tasklet);
1166 do_poke_blanked_console = 1;
1167 schedule_console_callback();
1170 static char kbd_name[] = "kbd";
1173 * When a keyboard (or other input device) is found, the kbd_connect
1174 * function is called. The function then looks at the device, and if it
1175 * likes it, it can open it and get events from it. In this (kbd_connect)
1176 * function, we should decide which VT to bind that keyboard to initially.
1178 static struct input_handle *kbd_connect(struct input_handler *handler,
1179 struct input_dev *dev,
1180 struct input_device_id *id)
1182 struct input_handle *handle;
1185 for (i = KEY_RESERVED; i < BTN_MISC; i++)
1186 if (test_bit(i, dev->keybit)) break;
1188 if ((i == BTN_MISC) && !test_bit(EV_SND, dev->evbit))
1191 if (!(handle = kmalloc(sizeof(struct input_handle), GFP_KERNEL)))
1193 memset(handle, 0, sizeof(struct input_handle));
1196 handle->handler = handler;
1197 handle->name = kbd_name;
1199 input_open_device(handle);
1200 kbd_refresh_leds(handle);
1205 static void kbd_disconnect(struct input_handle *handle)
1207 input_close_device(handle);
1211 static struct input_device_id kbd_ids[] = {
1213 .flags = INPUT_DEVICE_ID_MATCH_EVBIT,
1214 .evbit = { BIT(EV_KEY) },
1218 .flags = INPUT_DEVICE_ID_MATCH_EVBIT,
1219 .evbit = { BIT(EV_SND) },
1222 { }, /* Terminating entry */
1225 MODULE_DEVICE_TABLE(input, kbd_ids);
1227 static struct input_handler kbd_handler = {
1229 .connect = kbd_connect,
1230 .disconnect = kbd_disconnect,
1232 .id_table = kbd_ids,
1235 int __init kbd_init(void)
1239 kbd0.ledflagstate = kbd0.default_ledflagstate = KBD_DEFLEDS;
1240 kbd0.ledmode = LED_SHOW_FLAGS;
1241 kbd0.lockstate = KBD_DEFLOCK;
1242 kbd0.slockstate = 0;
1243 kbd0.modeflags = KBD_DEFMODE;
1244 kbd0.kbdmode = VC_XLATE;
1246 for (i = 0 ; i < MAX_NR_CONSOLES ; i++)
1247 kbd_table[i] = kbd0;
1249 input_register_handler(&kbd_handler);
1251 tasklet_enable(&keyboard_tasklet);
1252 tasklet_schedule(&keyboard_tasklet);