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 < 0 || keycode > KEY_MAX)
203 if (dev->keycodesize < sizeof(keycode) && (keycode >> (dev->keycodesize * 8)))
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 DEFINE_TIMER(kd_mksound_timer, kd_nosound, 0, 0);
238 void kd_mksound(unsigned int hz, unsigned int ticks)
240 struct list_head *node;
242 del_timer(&kd_mksound_timer);
245 list_for_each_prev(node, &kbd_handler.h_list) {
246 struct input_handle *handle = to_handle_h(node);
247 if (test_bit(EV_SND, handle->dev->evbit)) {
248 if (test_bit(SND_TONE, handle->dev->sndbit)) {
249 input_event(handle->dev, EV_SND, SND_TONE, hz);
252 if (test_bit(SND_BELL, handle->dev->sndbit)) {
253 input_event(handle->dev, EV_SND, SND_BELL, 1);
259 mod_timer(&kd_mksound_timer, jiffies + ticks);
265 * Setting the keyboard rate.
268 int kbd_rate(struct kbd_repeat *rep)
270 struct list_head *node;
274 list_for_each(node,&kbd_handler.h_list) {
275 struct input_handle *handle = to_handle_h(node);
276 struct input_dev *dev = handle->dev;
278 if (test_bit(EV_REP, dev->evbit)) {
280 input_event(dev, EV_REP, REP_DELAY, rep->delay);
282 input_event(dev, EV_REP, REP_PERIOD, rep->period);
283 d = dev->rep[REP_DELAY];
284 p = dev->rep[REP_PERIOD];
295 static void put_queue(struct vc_data *vc, int ch)
297 struct tty_struct *tty = vc->vc_tty;
300 tty_insert_flip_char(tty, ch, 0);
301 con_schedule_flip(tty);
305 static void puts_queue(struct vc_data *vc, char *cp)
307 struct tty_struct *tty = vc->vc_tty;
313 tty_insert_flip_char(tty, *cp, 0);
316 con_schedule_flip(tty);
319 static void applkey(struct vc_data *vc, int key, char mode)
321 static char buf[] = { 0x1b, 'O', 0x00, 0x00 };
323 buf[1] = (mode ? 'O' : '[');
329 * Many other routines do put_queue, but I think either
330 * they produce ASCII, or they produce some user-assigned
331 * string, and in both cases we might assume that it is
332 * in utf-8 already. UTF-8 is defined for words of up to 31 bits,
333 * but we need only 16 bits here
335 static void to_utf8(struct vc_data *vc, ushort c)
340 else if (c < 0x800) {
341 /* 110***** 10****** */
342 put_queue(vc, 0xc0 | (c >> 6));
343 put_queue(vc, 0x80 | (c & 0x3f));
345 /* 1110**** 10****** 10****** */
346 put_queue(vc, 0xe0 | (c >> 12));
347 put_queue(vc, 0x80 | ((c >> 6) & 0x3f));
348 put_queue(vc, 0x80 | (c & 0x3f));
353 * Called after returning from RAW mode or when changing consoles - recompute
354 * shift_down[] and shift_state from key_down[] maybe called when keymap is
355 * undefined, so that shiftkey release is seen
357 void compute_shiftstate(void)
359 unsigned int i, j, k, sym, val;
362 memset(shift_down, 0, sizeof(shift_down));
364 for (i = 0; i < ARRAY_SIZE(key_down); i++) {
369 k = i * BITS_PER_LONG;
371 for (j = 0; j < BITS_PER_LONG; j++, k++) {
373 if (!test_bit(k, key_down))
376 sym = U(key_maps[0][k]);
377 if (KTYP(sym) != KT_SHIFT && KTYP(sym) != KT_SLOCK)
381 if (val == KVAL(K_CAPSSHIFT))
385 shift_state |= (1 << val);
391 * We have a combining character DIACR here, followed by the character CH.
392 * If the combination occurs in the table, return the corresponding value.
393 * Otherwise, if CH is a space or equals DIACR, return DIACR.
394 * Otherwise, conclude that DIACR was not combining after all,
395 * queue it and return CH.
397 static unsigned char handle_diacr(struct vc_data *vc, unsigned char ch)
404 for (i = 0; i < accent_table_size; i++) {
405 if (accent_table[i].diacr == d && accent_table[i].base == ch)
406 return accent_table[i].result;
409 if (ch == ' ' || ch == d)
417 * Special function handlers
419 static void fn_enter(struct vc_data *vc, struct pt_regs *regs)
422 put_queue(vc, diacr);
426 if (vc_kbd_mode(kbd, VC_CRLF))
430 static void fn_caps_toggle(struct vc_data *vc, struct pt_regs *regs)
434 chg_vc_kbd_led(kbd, VC_CAPSLOCK);
437 static void fn_caps_on(struct vc_data *vc, struct pt_regs *regs)
441 set_vc_kbd_led(kbd, VC_CAPSLOCK);
444 static void fn_show_ptregs(struct vc_data *vc, struct pt_regs *regs)
450 static void fn_hold(struct vc_data *vc, struct pt_regs *regs)
452 struct tty_struct *tty = vc->vc_tty;
458 * Note: SCROLLOCK will be set (cleared) by stop_tty (start_tty);
459 * these routines are also activated by ^S/^Q.
460 * (And SCROLLOCK can also be set by the ioctl KDSKBLED.)
468 static void fn_num(struct vc_data *vc, struct pt_regs *regs)
470 if (vc_kbd_mode(kbd,VC_APPLIC))
473 fn_bare_num(vc, regs);
477 * Bind this to Shift-NumLock if you work in application keypad mode
478 * but want to be able to change the NumLock flag.
479 * Bind this to NumLock if you prefer that the NumLock key always
480 * changes the NumLock flag.
482 static void fn_bare_num(struct vc_data *vc, struct pt_regs *regs)
485 chg_vc_kbd_led(kbd, VC_NUMLOCK);
488 static void fn_lastcons(struct vc_data *vc, struct pt_regs *regs)
490 /* switch to the last used console, ChN */
491 set_console(last_console);
494 static void fn_dec_console(struct vc_data *vc, struct pt_regs *regs)
496 int i, cur = fg_console;
498 /* Currently switching? Queue this next switch relative to that. */
499 if (want_console != -1)
502 for (i = cur - 1; i != cur; i--) {
504 i = MAX_NR_CONSOLES - 1;
505 if (vc_cons_allocated(i))
511 static void fn_inc_console(struct vc_data *vc, struct pt_regs *regs)
513 int i, cur = fg_console;
515 /* Currently switching? Queue this next switch relative to that. */
516 if (want_console != -1)
519 for (i = cur+1; i != cur; i++) {
520 if (i == MAX_NR_CONSOLES)
522 if (vc_cons_allocated(i))
528 static void fn_send_intr(struct vc_data *vc, struct pt_regs *regs)
530 struct tty_struct *tty = vc->vc_tty;
534 tty_insert_flip_char(tty, 0, TTY_BREAK);
535 con_schedule_flip(tty);
538 static void fn_scroll_forw(struct vc_data *vc, struct pt_regs *regs)
543 static void fn_scroll_back(struct vc_data *vc, struct pt_regs *regs)
548 static void fn_show_mem(struct vc_data *vc, struct pt_regs *regs)
553 static void fn_show_state(struct vc_data *vc, struct pt_regs *regs)
558 static void fn_boot_it(struct vc_data *vc, struct pt_regs *regs)
563 static void fn_compose(struct vc_data *vc, struct pt_regs *regs)
568 static void fn_spawn_con(struct vc_data *vc, struct pt_regs *regs)
571 if (kill_proc(spawnpid, spawnsig, 1))
575 static void fn_SAK(struct vc_data *vc, struct pt_regs *regs)
577 struct tty_struct *tty = vc->vc_tty;
580 * SAK should also work in all raw modes and reset
588 static void fn_null(struct vc_data *vc, struct pt_regs *regs)
590 compute_shiftstate();
594 * Special key handlers
596 static void k_ignore(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs)
600 static void k_spec(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs)
604 if (value >= ARRAY_SIZE(fn_handler))
606 if ((kbd->kbdmode == VC_RAW ||
607 kbd->kbdmode == VC_MEDIUMRAW) &&
608 value != KVAL(K_SAK))
609 return; /* SAK is allowed even in raw mode */
610 fn_handler[value](vc, regs);
613 static void k_lowercase(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs)
615 printk(KERN_ERR "keyboard.c: k_lowercase was called - impossible\n");
618 static void k_self(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs)
621 return; /* no action, if this is a key release */
624 value = handle_diacr(vc, value);
631 put_queue(vc, value);
635 * Handle dead key. Note that we now may have several
636 * dead keys modifying the same character. Very useful
639 static void k_dead2(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs)
643 diacr = (diacr ? handle_diacr(vc, value) : value);
647 * Obsolete - for backwards compatibility only
649 static void k_dead(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs)
651 static unsigned char ret_diacr[NR_DEAD] = {'`', '\'', '^', '~', '"', ',' };
652 value = ret_diacr[value];
653 k_dead2(vc, value, up_flag, regs);
656 static void k_cons(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs)
663 static void k_fn(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs)
670 if (v < ARRAY_SIZE(func_table)) {
671 if (func_table[value])
672 puts_queue(vc, func_table[value]);
674 printk(KERN_ERR "k_fn called with value=%d\n", value);
677 static void k_cur(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs)
679 static const char *cur_chars = "BDCA";
683 applkey(vc, cur_chars[value], vc_kbd_mode(kbd, VC_CKMODE));
686 static void k_pad(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs)
688 static const char *pad_chars = "0123456789+-*/\015,.?()#";
689 static const char *app_map = "pqrstuvwxylSRQMnnmPQS";
692 return; /* no action, if this is a key release */
694 /* kludge... shift forces cursor/number keys */
695 if (vc_kbd_mode(kbd, VC_APPLIC) && !shift_down[KG_SHIFT]) {
696 applkey(vc, app_map[value], 1);
700 if (!vc_kbd_led(kbd, VC_NUMLOCK))
704 k_fn(vc, KVAL(K_REMOVE), 0, regs);
707 k_fn(vc, KVAL(K_INSERT), 0, regs);
710 k_fn(vc, KVAL(K_SELECT), 0, regs);
713 k_cur(vc, KVAL(K_DOWN), 0, regs);
716 k_fn(vc, KVAL(K_PGDN), 0, regs);
719 k_cur(vc, KVAL(K_LEFT), 0, regs);
722 k_cur(vc, KVAL(K_RIGHT), 0, regs);
725 k_fn(vc, KVAL(K_FIND), 0, regs);
728 k_cur(vc, KVAL(K_UP), 0, regs);
731 k_fn(vc, KVAL(K_PGUP), 0, regs);
734 applkey(vc, 'G', vc_kbd_mode(kbd, VC_APPLIC));
738 put_queue(vc, pad_chars[value]);
739 if (value == KVAL(K_PENTER) && vc_kbd_mode(kbd, VC_CRLF))
743 static void k_shift(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs)
745 int old_state = shift_state;
751 * a CapsShift key acts like Shift but undoes CapsLock
753 if (value == KVAL(K_CAPSSHIFT)) {
754 value = KVAL(K_SHIFT);
756 clr_vc_kbd_led(kbd, VC_CAPSLOCK);
761 * handle the case that two shift or control
762 * keys are depressed simultaneously
764 if (shift_down[value])
769 if (shift_down[value])
770 shift_state |= (1 << value);
772 shift_state &= ~(1 << value);
775 if (up_flag && shift_state != old_state && npadch != -1) {
776 if (kbd->kbdmode == VC_UNICODE)
777 to_utf8(vc, npadch & 0xffff);
779 put_queue(vc, npadch & 0xff);
784 static void k_meta(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs)
789 if (vc_kbd_mode(kbd, VC_META)) {
790 put_queue(vc, '\033');
791 put_queue(vc, value);
793 put_queue(vc, value | 0x80);
796 static void k_ascii(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs)
804 /* decimal input of code, while Alt depressed */
807 /* hexadecimal input of code, while AltGr depressed */
815 npadch = npadch * base + value;
818 static void k_lock(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs)
822 chg_vc_kbd_lock(kbd, value);
825 static void k_slock(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs)
827 k_shift(vc, value, up_flag, regs);
830 chg_vc_kbd_slock(kbd, value);
831 /* try to make Alt, oops, AltGr and such work */
832 if (!key_maps[kbd->lockstate ^ kbd->slockstate]) {
834 chg_vc_kbd_slock(kbd, value);
839 * The leds display either (i) the status of NumLock, CapsLock, ScrollLock,
840 * or (ii) whatever pattern of lights people want to show using KDSETLED,
841 * or (iii) specified bits of specified words in kernel memory.
843 unsigned char getledstate(void)
848 void setledstate(struct kbd_struct *kbd, unsigned int led)
852 kbd->ledmode = LED_SHOW_IOCTL;
854 kbd->ledmode = LED_SHOW_FLAGS;
858 static inline unsigned char getleds(void)
860 struct kbd_struct *kbd = kbd_table + fg_console;
864 if (kbd->ledmode == LED_SHOW_IOCTL)
867 leds = kbd->ledflagstate;
869 if (kbd->ledmode == LED_SHOW_MEM) {
870 for (i = 0; i < 3; i++)
871 if (ledptrs[i].valid) {
872 if (*ledptrs[i].addr & ledptrs[i].mask)
882 * This routine is the bottom half of the keyboard interrupt
883 * routine, and runs with all interrupts enabled. It does
884 * console changing, led setting and copy_to_cooked, which can
885 * take a reasonably long time.
887 * Aside from timing (which isn't really that important for
888 * keyboard interrupts as they happen often), using the software
889 * interrupt routines for this thing allows us to easily mask
890 * this when we don't want any of the above to happen.
891 * This allows for easy and efficient race-condition prevention
892 * for kbd_refresh_leds => input_event(dev, EV_LED, ...) => ...
895 static void kbd_bh(unsigned long dummy)
897 struct list_head *node;
898 unsigned char leds = getleds();
900 if (leds != ledstate) {
901 list_for_each(node, &kbd_handler.h_list) {
902 struct input_handle * handle = to_handle_h(node);
903 input_event(handle->dev, EV_LED, LED_SCROLLL, !!(leds & 0x01));
904 input_event(handle->dev, EV_LED, LED_NUML, !!(leds & 0x02));
905 input_event(handle->dev, EV_LED, LED_CAPSL, !!(leds & 0x04));
906 input_sync(handle->dev);
913 DECLARE_TASKLET_DISABLED(keyboard_tasklet, kbd_bh, 0);
916 * This allows a newly plugged keyboard to pick the LED state.
918 static void kbd_refresh_leds(struct input_handle *handle)
920 unsigned char leds = ledstate;
922 tasklet_disable(&keyboard_tasklet);
924 input_event(handle->dev, EV_LED, LED_SCROLLL, !!(leds & 0x01));
925 input_event(handle->dev, EV_LED, LED_NUML, !!(leds & 0x02));
926 input_event(handle->dev, EV_LED, LED_CAPSL, !!(leds & 0x04));
927 input_sync(handle->dev);
929 tasklet_enable(&keyboard_tasklet);
932 #if defined(CONFIG_X86) || defined(CONFIG_IA64) || defined(CONFIG_ALPHA) ||\
933 defined(CONFIG_MIPS) || defined(CONFIG_PPC) || defined(CONFIG_SPARC) ||\
934 defined(CONFIG_PARISC) || defined(CONFIG_SUPERH) ||\
935 (defined(CONFIG_ARM) && defined(CONFIG_KEYBOARD_ATKBD) && !defined(CONFIG_ARCH_RPC))
937 #define HW_RAW(dev) (test_bit(EV_MSC, dev->evbit) && test_bit(MSC_RAW, dev->mscbit) &&\
938 ((dev)->id.bustype == BUS_I8042) && ((dev)->id.vendor == 0x0001) && ((dev)->id.product == 0x0001))
940 static unsigned short x86_keycodes[256] =
941 { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
942 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
943 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
944 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
945 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
946 80, 81, 82, 83, 84,118, 86, 87, 88,115,120,119,121,112,123, 92,
947 284,285,309,298,312, 91,327,328,329,331,333,335,336,337,338,339,
948 367,288,302,304,350, 89,334,326,267,126,268,269,125,347,348,349,
949 360,261,262,263,268,376,100,101,321,316,373,286,289,102,351,355,
950 103,104,105,275,287,279,306,106,274,107,294,364,358,363,362,361,
951 291,108,381,281,290,272,292,305,280, 99,112,257,258,359,113,114,
952 264,117,271,374,379,265,266, 93, 94, 95, 85,259,375,260, 90,116,
953 377,109,111,277,278,282,283,295,296,297,299,300,301,293,303,307,
954 308,310,313,314,315,317,318,319,320,357,322,323,324,325,276,330,
955 332,340,365,342,343,344,345,346,356,270,341,368,369,370,371,372 };
957 #ifdef CONFIG_MAC_EMUMOUSEBTN
958 extern int mac_hid_mouse_emulate_buttons(int, int, int);
959 #endif /* CONFIG_MAC_EMUMOUSEBTN */
962 static int sparc_l1_a_state = 0;
963 extern void sun_do_break(void);
966 static int emulate_raw(struct vc_data *vc, unsigned int keycode,
967 unsigned char up_flag)
969 if (keycode > 255 || !x86_keycodes[keycode])
975 put_queue(vc, 0x1d | up_flag);
976 put_queue(vc, 0x45 | up_flag);
979 if (!up_flag) put_queue(vc, 0xf1);
982 if (!up_flag) put_queue(vc, 0xf2);
986 if (keycode == KEY_SYSRQ && sysrq_alt) {
987 put_queue(vc, 0x54 | up_flag);
991 if (x86_keycodes[keycode] & 0x100)
994 put_queue(vc, (x86_keycodes[keycode] & 0x7f) | up_flag);
996 if (keycode == KEY_SYSRQ) {
998 put_queue(vc, 0x37 | up_flag);
1006 #define HW_RAW(dev) 0
1008 #warning "Cannot generate rawmode keyboard for your architecture yet."
1010 static int emulate_raw(struct vc_data *vc, unsigned int keycode, unsigned char up_flag)
1015 put_queue(vc, keycode | up_flag);
1020 static void kbd_rawcode(unsigned char data)
1022 struct vc_data *vc = vc_cons[fg_console].d;
1023 kbd = kbd_table + fg_console;
1024 if (kbd->kbdmode == VC_RAW)
1025 put_queue(vc, data);
1028 static void kbd_keycode(unsigned int keycode, int down,
1029 int hw_raw, struct pt_regs *regs)
1031 struct vc_data *vc = vc_cons[fg_console].d;
1032 unsigned short keysym, *key_map;
1033 unsigned char type, raw_mode;
1034 struct tty_struct *tty;
1039 if (tty && (!tty->driver_data)) {
1040 /* No driver data? Strange. Okay we fix it then. */
1041 tty->driver_data = vc;
1044 kbd = kbd_table + fg_console;
1046 if (keycode == KEY_LEFTALT || keycode == KEY_RIGHTALT)
1049 if (keycode == KEY_STOP)
1050 sparc_l1_a_state = down;
1055 #ifdef CONFIG_MAC_EMUMOUSEBTN
1056 if (mac_hid_mouse_emulate_buttons(1, keycode, down))
1058 #endif /* CONFIG_MAC_EMUMOUSEBTN */
1060 if ((raw_mode = (kbd->kbdmode == VC_RAW)) && !hw_raw)
1061 if (emulate_raw(vc, keycode, !down << 7))
1062 if (keycode < BTN_MISC)
1063 printk(KERN_WARNING "keyboard.c: can't emulate rawmode for keycode %d\n", keycode);
1065 #ifdef CONFIG_MAGIC_SYSRQ /* Handle the SysRq Hack */
1066 if (keycode == KEY_SYSRQ && (sysrq_down || (down == 1 && sysrq_alt))) {
1070 if (sysrq_down && down && !rep) {
1071 handle_sysrq(kbd_sysrq_xlate[keycode], regs, tty);
1076 if (keycode == KEY_A && sparc_l1_a_state) {
1077 sparc_l1_a_state = 0;
1082 if (kbd->kbdmode == VC_MEDIUMRAW) {
1084 * This is extended medium raw mode, with keys above 127
1085 * encoded as 0, high 7 bits, low 7 bits, with the 0 bearing
1086 * the 'up' flag if needed. 0 is reserved, so this shouldn't
1087 * interfere with anything else. The two bytes after 0 will
1088 * always have the up flag set not to interfere with older
1089 * applications. This allows for 16384 different keycodes,
1090 * which should be enough.
1092 if (keycode < 128) {
1093 put_queue(vc, keycode | (!down << 7));
1095 put_queue(vc, !down << 7);
1096 put_queue(vc, (keycode >> 7) | 0x80);
1097 put_queue(vc, keycode | 0x80);
1103 set_bit(keycode, key_down);
1105 clear_bit(keycode, key_down);
1108 (!vc_kbd_mode(kbd, VC_REPEAT) ||
1109 (tty && !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)
1135 to_utf8(vc, keysym);
1141 if (raw_mode && type != KT_SPEC && type != KT_SHIFT)
1144 if (type == KT_LETTER) {
1146 if (vc_kbd_led(kbd, VC_CAPSLOCK)) {
1147 key_map = key_maps[shift_final ^ (1 << KG_SHIFT)];
1149 keysym = key_map[keycode];
1153 (*k_handler[type])(vc, keysym & 0xff, !down, regs);
1155 if (type != KT_SLOCK)
1156 kbd->slockstate = 0;
1159 static void kbd_event(struct input_handle *handle, unsigned int event_type,
1160 unsigned int event_code, int value)
1162 if (event_type == EV_MSC && event_code == MSC_RAW && HW_RAW(handle->dev))
1164 if (event_type == EV_KEY)
1165 kbd_keycode(event_code, value, HW_RAW(handle->dev), handle->dev->regs);
1166 tasklet_schedule(&keyboard_tasklet);
1167 do_poke_blanked_console = 1;
1168 schedule_console_callback();
1172 * When a keyboard (or other input device) is found, the kbd_connect
1173 * function is called. The function then looks at the device, and if it
1174 * likes it, it can open it and get events from it. In this (kbd_connect)
1175 * function, we should decide which VT to bind that keyboard to initially.
1177 static struct input_handle *kbd_connect(struct input_handler *handler,
1178 struct input_dev *dev,
1179 struct input_device_id *id)
1181 struct input_handle *handle;
1184 for (i = KEY_RESERVED; i < BTN_MISC; i++)
1185 if (test_bit(i, dev->keybit))
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";
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);