FreeBSD/Linux Kernel Cross Reference
sys/dev/atkbdc/atkbd.c
1 /*-
2 * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer as
10 * the first lines of this file unmodified.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *
26 */
27
28 #include <sys/cdefs.h>
29 __FBSDID("$FreeBSD$");
30
31 #include "opt_kbd.h"
32 #include "opt_atkbd.h"
33
34 #include <sys/param.h>
35 #include <sys/systm.h>
36 #include <sys/kernel.h>
37 #include <sys/bus.h>
38 #include <sys/eventhandler.h>
39 #include <sys/proc.h>
40 #include <sys/limits.h>
41 #include <sys/malloc.h>
42
43 #include <machine/bus.h>
44 #include <machine/resource.h>
45
46 #ifdef __i386__
47 #include <machine/md_var.h>
48 #include <machine/psl.h>
49 #include <machine/vm86.h>
50 #include <machine/pc/bios.h>
51
52 #include <vm/vm.h>
53 #include <vm/pmap.h>
54 #include <vm/vm_param.h>
55
56 #include <isa/isareg.h>
57 #endif /* __i386__ */
58
59 #include <sys/kbio.h>
60 #include <dev/kbd/kbdreg.h>
61 #include <dev/atkbdc/atkbdreg.h>
62 #include <dev/atkbdc/atkbdcreg.h>
63
64 static timeout_t atkbd_timeout;
65 static void atkbd_shutdown_final(void *v);
66
67 int
68 atkbd_probe_unit(int unit, int ctlr, int irq, int flags)
69 {
70 keyboard_switch_t *sw;
71 int args[2];
72 int error;
73
74 sw = kbd_get_switch(ATKBD_DRIVER_NAME);
75 if (sw == NULL)
76 return ENXIO;
77
78 args[0] = ctlr;
79 args[1] = irq;
80 error = (*sw->probe)(unit, args, flags);
81 if (error)
82 return error;
83 return 0;
84 }
85
86 int
87 atkbd_attach_unit(int unit, keyboard_t **kbd, int ctlr, int irq, int flags)
88 {
89 keyboard_switch_t *sw;
90 int args[2];
91 int error;
92
93 sw = kbd_get_switch(ATKBD_DRIVER_NAME);
94 if (sw == NULL)
95 return ENXIO;
96
97 /* reset, initialize and enable the device */
98 args[0] = ctlr;
99 args[1] = irq;
100 *kbd = NULL;
101 error = (*sw->probe)(unit, args, flags);
102 if (error)
103 return error;
104 error = (*sw->init)(unit, kbd, args, flags);
105 if (error)
106 return error;
107 (*sw->enable)(*kbd);
108
109 #ifdef KBD_INSTALL_CDEV
110 /* attach a virtual keyboard cdev */
111 error = kbd_attach(*kbd);
112 if (error)
113 return error;
114 #endif
115
116 /*
117 * This is a kludge to compensate for lost keyboard interrupts.
118 * A similar code used to be in syscons. See below. XXX
119 */
120 atkbd_timeout(*kbd);
121
122 if (bootverbose)
123 (*sw->diag)(*kbd, bootverbose);
124
125 EVENTHANDLER_REGISTER(shutdown_final, atkbd_shutdown_final, *kbd,
126 SHUTDOWN_PRI_DEFAULT);
127
128 return 0;
129 }
130
131 static void
132 atkbd_timeout(void *arg)
133 {
134 keyboard_t *kbd;
135 int s;
136
137 /*
138 * The original text of the following comments are extracted
139 * from syscons.c (1.287)
140 *
141 * With release 2.1 of the Xaccel server, the keyboard is left
142 * hanging pretty often. Apparently an interrupt from the
143 * keyboard is lost, and I don't know why (yet).
144 * This ugly hack calls the low-level interrupt routine if input
145 * is ready for the keyboard and conveniently hides the problem. XXX
146 *
147 * Try removing anything stuck in the keyboard controller; whether
148 * it's a keyboard scan code or mouse data. The low-level
149 * interrupt routine doesn't read the mouse data directly,
150 * but the keyboard controller driver will, as a side effect.
151 */
152 /*
153 * And here is bde's original comment about this:
154 *
155 * This is necessary to handle edge triggered interrupts - if we
156 * returned when our IRQ is high due to unserviced input, then there
157 * would be no more keyboard IRQs until the keyboard is reset by
158 * external powers.
159 *
160 * The keyboard apparently unwedges the irq in most cases.
161 */
162 s = spltty();
163 kbd = (keyboard_t *)arg;
164 if ((*kbdsw[kbd->kb_index]->lock)(kbd, TRUE)) {
165 /*
166 * We have seen the lock flag is not set. Let's reset
167 * the flag early, otherwise the LED update routine fails
168 * which may want the lock during the interrupt routine.
169 */
170 (*kbdsw[kbd->kb_index]->lock)(kbd, FALSE);
171 if ((*kbdsw[kbd->kb_index]->check_char)(kbd))
172 (*kbdsw[kbd->kb_index]->intr)(kbd, NULL);
173 }
174 splx(s);
175 timeout(atkbd_timeout, arg, hz/10);
176 }
177
178 /* LOW-LEVEL */
179
180 #define ATKBD_DEFAULT 0
181
182 typedef struct atkbd_state {
183 KBDC kbdc; /* keyboard controller */
184 /* XXX: don't move this field; pcvt
185 * expects `kbdc' to be the first
186 * field in this structure. */
187 int ks_mode; /* input mode (K_XLATE,K_RAW,K_CODE) */
188 int ks_flags; /* flags */
189 #define COMPOSE (1 << 0)
190 int ks_polling;
191 int ks_state; /* shift/lock key state */
192 int ks_accents; /* accent key index (> 0) */
193 u_int ks_composed_char; /* composed char code (> 0) */
194 u_char ks_prefix; /* AT scan code prefix */
195 } atkbd_state_t;
196
197 /* keyboard driver declaration */
198 static int atkbd_configure(int flags);
199 static kbd_probe_t atkbd_probe;
200 static kbd_init_t atkbd_init;
201 static kbd_term_t atkbd_term;
202 static kbd_intr_t atkbd_intr;
203 static kbd_test_if_t atkbd_test_if;
204 static kbd_enable_t atkbd_enable;
205 static kbd_disable_t atkbd_disable;
206 static kbd_read_t atkbd_read;
207 static kbd_check_t atkbd_check;
208 static kbd_read_char_t atkbd_read_char;
209 static kbd_check_char_t atkbd_check_char;
210 static kbd_ioctl_t atkbd_ioctl;
211 static kbd_lock_t atkbd_lock;
212 static kbd_clear_state_t atkbd_clear_state;
213 static kbd_get_state_t atkbd_get_state;
214 static kbd_set_state_t atkbd_set_state;
215 static kbd_poll_mode_t atkbd_poll;
216
217 static keyboard_switch_t atkbdsw = {
218 atkbd_probe,
219 atkbd_init,
220 atkbd_term,
221 atkbd_intr,
222 atkbd_test_if,
223 atkbd_enable,
224 atkbd_disable,
225 atkbd_read,
226 atkbd_check,
227 atkbd_read_char,
228 atkbd_check_char,
229 atkbd_ioctl,
230 atkbd_lock,
231 atkbd_clear_state,
232 atkbd_get_state,
233 atkbd_set_state,
234 genkbd_get_fkeystr,
235 atkbd_poll,
236 genkbd_diag,
237 };
238
239 KEYBOARD_DRIVER(atkbd, atkbdsw, atkbd_configure);
240
241 /* local functions */
242 static int get_typematic(keyboard_t *kbd);
243 static int setup_kbd_port(KBDC kbdc, int port, int intr);
244 static int get_kbd_echo(KBDC kbdc);
245 static int probe_keyboard(KBDC kbdc, int flags);
246 static int init_keyboard(KBDC kbdc, int *type, int flags);
247 static int write_kbd(KBDC kbdc, int command, int data);
248 static int get_kbd_id(KBDC kbdc);
249 static int typematic(int delay, int rate);
250 static int typematic_delay(int delay);
251 static int typematic_rate(int rate);
252
253 /* local variables */
254
255 /* the initial key map, accent map and fkey strings */
256 #ifdef ATKBD_DFLT_KEYMAP
257 #define KBD_DFLT_KEYMAP
258 #include "atkbdmap.h"
259 #endif
260 #include <dev/kbd/kbdtables.h>
261
262 /* structures for the default keyboard */
263 static keyboard_t default_kbd;
264 static atkbd_state_t default_kbd_state;
265 static keymap_t default_keymap;
266 static accentmap_t default_accentmap;
267 static fkeytab_t default_fkeytab[NUM_FKEYS];
268
269 /*
270 * The back door to the keyboard driver!
271 * This function is called by the console driver, via the kbdio module,
272 * to tickle keyboard drivers when the low-level console is being initialized.
273 * Almost nothing in the kernel has been initialied yet. Try to probe
274 * keyboards if possible.
275 * NOTE: because of the way the low-level console is initialized, this routine
276 * may be called more than once!!
277 */
278 static int
279 atkbd_configure(int flags)
280 {
281 keyboard_t *kbd;
282 int arg[2];
283 int i;
284
285 /*
286 * Probe the keyboard controller, if not present or if the driver
287 * is disabled, unregister the keyboard if any.
288 */
289 if (atkbdc_configure() != 0 ||
290 resource_disabled("atkbd", ATKBD_DEFAULT)) {
291 i = kbd_find_keyboard(ATKBD_DRIVER_NAME, ATKBD_DEFAULT);
292 if (i >= 0) {
293 kbd = kbd_get_keyboard(i);
294 kbd_unregister(kbd);
295 kbd->kb_flags &= ~KB_REGISTERED;
296 }
297 return 0;
298 }
299
300 /* XXX: a kludge to obtain the device configuration flags */
301 if (resource_int_value("atkbd", ATKBD_DEFAULT, "flags", &i) == 0)
302 flags |= i;
303
304 /* probe the default keyboard */
305 arg[0] = -1;
306 arg[1] = -1;
307 kbd = NULL;
308 if (atkbd_probe(ATKBD_DEFAULT, arg, flags))
309 return 0;
310 if (atkbd_init(ATKBD_DEFAULT, &kbd, arg, flags))
311 return 0;
312
313 /* return the number of found keyboards */
314 return 1;
315 }
316
317 /* low-level functions */
318
319 /* detect a keyboard */
320 static int
321 atkbd_probe(int unit, void *arg, int flags)
322 {
323 KBDC kbdc;
324 int *data = (int *)arg; /* data[0]: controller, data[1]: irq */
325
326 /* XXX */
327 if (unit == ATKBD_DEFAULT) {
328 if (KBD_IS_PROBED(&default_kbd))
329 return 0;
330 }
331
332 kbdc = atkbdc_open(data[0]);
333 if (kbdc == NULL)
334 return ENXIO;
335 if (probe_keyboard(kbdc, flags)) {
336 if (flags & KB_CONF_FAIL_IF_NO_KBD)
337 return ENXIO;
338 }
339 return 0;
340 }
341
342 /* reset and initialize the device */
343 static int
344 atkbd_init(int unit, keyboard_t **kbdp, void *arg, int flags)
345 {
346 keyboard_t *kbd;
347 atkbd_state_t *state;
348 keymap_t *keymap;
349 accentmap_t *accmap;
350 fkeytab_t *fkeymap;
351 int fkeymap_size;
352 int delay[2];
353 int *data = (int *)arg; /* data[0]: controller, data[1]: irq */
354 int error, needfree;
355
356 /* XXX */
357 if (unit == ATKBD_DEFAULT) {
358 *kbdp = kbd = &default_kbd;
359 if (KBD_IS_INITIALIZED(kbd) && KBD_IS_CONFIGURED(kbd))
360 return 0;
361 state = &default_kbd_state;
362 keymap = &default_keymap;
363 accmap = &default_accentmap;
364 fkeymap = default_fkeytab;
365 fkeymap_size =
366 sizeof(default_fkeytab)/sizeof(default_fkeytab[0]);
367 needfree = 0;
368 } else if (*kbdp == NULL) {
369 *kbdp = kbd = malloc(sizeof(*kbd), M_DEVBUF, M_NOWAIT | M_ZERO);
370 state = malloc(sizeof(*state), M_DEVBUF, M_NOWAIT | M_ZERO);
371 /* NB: these will always be initialized 'cuz !KBD_IS_PROBED */
372 keymap = malloc(sizeof(key_map), M_DEVBUF, M_NOWAIT);
373 accmap = malloc(sizeof(accent_map), M_DEVBUF, M_NOWAIT);
374 fkeymap = malloc(sizeof(fkey_tab), M_DEVBUF, M_NOWAIT);
375 fkeymap_size = sizeof(fkey_tab)/sizeof(fkey_tab[0]);
376 needfree = 1;
377 if ((kbd == NULL) || (state == NULL) || (keymap == NULL)
378 || (accmap == NULL) || (fkeymap == NULL)) {
379 error = ENOMEM;
380 goto bad;
381 }
382 } else if (KBD_IS_INITIALIZED(*kbdp) && KBD_IS_CONFIGURED(*kbdp)) {
383 return 0;
384 } else {
385 kbd = *kbdp;
386 state = (atkbd_state_t *)kbd->kb_data;
387 bzero(state, sizeof(*state));
388 keymap = kbd->kb_keymap;
389 accmap = kbd->kb_accentmap;
390 fkeymap = kbd->kb_fkeytab;
391 fkeymap_size = kbd->kb_fkeytab_size;
392 needfree = 0;
393 }
394
395 if (!KBD_IS_PROBED(kbd)) {
396 state->kbdc = atkbdc_open(data[0]);
397 if (state->kbdc == NULL) {
398 error = ENXIO;
399 goto bad;
400 }
401 kbd_init_struct(kbd, ATKBD_DRIVER_NAME, KB_OTHER, unit, flags,
402 0, 0);
403 bcopy(&key_map, keymap, sizeof(key_map));
404 bcopy(&accent_map, accmap, sizeof(accent_map));
405 bcopy(fkey_tab, fkeymap,
406 imin(fkeymap_size*sizeof(fkeymap[0]), sizeof(fkey_tab)));
407 kbd_set_maps(kbd, keymap, accmap, fkeymap, fkeymap_size);
408 kbd->kb_data = (void *)state;
409
410 if (probe_keyboard(state->kbdc, flags)) { /* shouldn't happen */
411 if (flags & KB_CONF_FAIL_IF_NO_KBD) {
412 error = ENXIO;
413 goto bad;
414 }
415 } else {
416 KBD_FOUND_DEVICE(kbd);
417 }
418 atkbd_clear_state(kbd);
419 state->ks_mode = K_XLATE;
420 /*
421 * FIXME: set the initial value for lock keys in ks_state
422 * according to the BIOS data?
423 */
424 KBD_PROBE_DONE(kbd);
425 }
426 if (!KBD_IS_INITIALIZED(kbd) && !(flags & KB_CONF_PROBE_ONLY)) {
427 kbd->kb_config = flags & ~KB_CONF_PROBE_ONLY;
428 if (KBD_HAS_DEVICE(kbd)
429 && init_keyboard(state->kbdc, &kbd->kb_type, kbd->kb_config)
430 && (kbd->kb_config & KB_CONF_FAIL_IF_NO_KBD)) {
431 kbd_unregister(kbd);
432 error = ENXIO;
433 goto bad;
434 }
435 atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state);
436 get_typematic(kbd);
437 delay[0] = kbd->kb_delay1;
438 delay[1] = kbd->kb_delay2;
439 atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay);
440 KBD_INIT_DONE(kbd);
441 }
442 if (!KBD_IS_CONFIGURED(kbd)) {
443 if (kbd_register(kbd) < 0) {
444 error = ENXIO;
445 goto bad;
446 }
447 KBD_CONFIG_DONE(kbd);
448 }
449
450 return 0;
451 bad:
452 if (needfree) {
453 if (state != NULL)
454 free(state, M_DEVBUF);
455 if (keymap != NULL)
456 free(keymap, M_DEVBUF);
457 if (accmap != NULL)
458 free(accmap, M_DEVBUF);
459 if (fkeymap != NULL)
460 free(fkeymap, M_DEVBUF);
461 if (kbd != NULL) {
462 free(kbd, M_DEVBUF);
463 *kbdp = NULL; /* insure ref doesn't leak to caller */
464 }
465 }
466 return error;
467 }
468
469 /* finish using this keyboard */
470 static int
471 atkbd_term(keyboard_t *kbd)
472 {
473 kbd_unregister(kbd);
474 return 0;
475 }
476
477 /* keyboard interrupt routine */
478 static int
479 atkbd_intr(keyboard_t *kbd, void *arg)
480 {
481 atkbd_state_t *state;
482 int delay[2];
483 int c;
484
485 if (!KBD_HAS_DEVICE(kbd)) {
486 /*
487 * The keyboard was not detected before;
488 * it must have been reconnected!
489 */
490 state = (atkbd_state_t *)kbd->kb_data;
491 init_keyboard(state->kbdc, &kbd->kb_type,
492 kbd->kb_config);
493 KBD_FOUND_DEVICE(kbd);
494 atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state);
495 get_typematic(kbd);
496 delay[0] = kbd->kb_delay1;
497 delay[1] = kbd->kb_delay2;
498 atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay);
499 }
500
501 if (KBD_IS_ACTIVE(kbd) && KBD_IS_BUSY(kbd)) {
502 /* let the callback function to process the input */
503 (*kbd->kb_callback.kc_func)(kbd, KBDIO_KEYINPUT,
504 kbd->kb_callback.kc_arg);
505 } else {
506 /* read and discard the input; no one is waiting for input */
507 do {
508 c = atkbd_read_char(kbd, FALSE);
509 } while (c != NOKEY);
510 }
511 return 0;
512 }
513
514 /* test the interface to the device */
515 static int
516 atkbd_test_if(keyboard_t *kbd)
517 {
518 int error;
519 int s;
520
521 error = 0;
522 empty_both_buffers(((atkbd_state_t *)kbd->kb_data)->kbdc, 10);
523 s = spltty();
524 if (!test_controller(((atkbd_state_t *)kbd->kb_data)->kbdc))
525 error = EIO;
526 else if (test_kbd_port(((atkbd_state_t *)kbd->kb_data)->kbdc) != 0)
527 error = EIO;
528 splx(s);
529
530 return error;
531 }
532
533 /*
534 * Enable the access to the device; until this function is called,
535 * the client cannot read from the keyboard.
536 */
537 static int
538 atkbd_enable(keyboard_t *kbd)
539 {
540 int s;
541
542 s = spltty();
543 KBD_ACTIVATE(kbd);
544 splx(s);
545 return 0;
546 }
547
548 /* disallow the access to the device */
549 static int
550 atkbd_disable(keyboard_t *kbd)
551 {
552 int s;
553
554 s = spltty();
555 KBD_DEACTIVATE(kbd);
556 splx(s);
557 return 0;
558 }
559
560 /* read one byte from the keyboard if it's allowed */
561 static int
562 atkbd_read(keyboard_t *kbd, int wait)
563 {
564 int c;
565
566 if (wait)
567 c = read_kbd_data(((atkbd_state_t *)kbd->kb_data)->kbdc);
568 else
569 c = read_kbd_data_no_wait(((atkbd_state_t *)kbd->kb_data)->kbdc);
570 if (c != -1)
571 ++kbd->kb_count;
572 return (KBD_IS_ACTIVE(kbd) ? c : -1);
573 }
574
575 /* check if data is waiting */
576 static int
577 atkbd_check(keyboard_t *kbd)
578 {
579 if (!KBD_IS_ACTIVE(kbd))
580 return FALSE;
581 return kbdc_data_ready(((atkbd_state_t *)kbd->kb_data)->kbdc);
582 }
583
584 /* read char from the keyboard */
585 static u_int
586 atkbd_read_char(keyboard_t *kbd, int wait)
587 {
588 atkbd_state_t *state;
589 u_int action;
590 int scancode;
591 int keycode;
592
593 state = (atkbd_state_t *)kbd->kb_data;
594 next_code:
595 /* do we have a composed char to return? */
596 if (!(state->ks_flags & COMPOSE) && (state->ks_composed_char > 0)) {
597 action = state->ks_composed_char;
598 state->ks_composed_char = 0;
599 if (action > UCHAR_MAX)
600 return ERRKEY;
601 return action;
602 }
603
604 /* see if there is something in the keyboard port */
605 if (wait) {
606 do {
607 scancode = read_kbd_data(state->kbdc);
608 } while (scancode == -1);
609 } else {
610 scancode = read_kbd_data_no_wait(state->kbdc);
611 if (scancode == -1)
612 return NOKEY;
613 }
614 ++kbd->kb_count;
615
616 #if KBDIO_DEBUG >= 10
617 printf("atkbd_read_char(): scancode:0x%x\n", scancode);
618 #endif
619
620 /* return the byte as is for the K_RAW mode */
621 if (state->ks_mode == K_RAW)
622 return scancode;
623
624 /* translate the scan code into a keycode */
625 keycode = scancode & 0x7F;
626 switch (state->ks_prefix) {
627 case 0x00: /* normal scancode */
628 switch(scancode) {
629 case 0xB8: /* left alt (compose key) released */
630 if (state->ks_flags & COMPOSE) {
631 state->ks_flags &= ~COMPOSE;
632 if (state->ks_composed_char > UCHAR_MAX)
633 state->ks_composed_char = 0;
634 }
635 break;
636 case 0x38: /* left alt (compose key) pressed */
637 if (!(state->ks_flags & COMPOSE)) {
638 state->ks_flags |= COMPOSE;
639 state->ks_composed_char = 0;
640 }
641 break;
642 case 0xE0:
643 case 0xE1:
644 state->ks_prefix = scancode;
645 goto next_code;
646 }
647 break;
648 case 0xE0: /* 0xE0 prefix */
649 state->ks_prefix = 0;
650 switch (keycode) {
651 case 0x1C: /* right enter key */
652 keycode = 0x59;
653 break;
654 case 0x1D: /* right ctrl key */
655 keycode = 0x5A;
656 break;
657 case 0x35: /* keypad divide key */
658 keycode = 0x5B;
659 break;
660 case 0x37: /* print scrn key */
661 keycode = 0x5C;
662 break;
663 case 0x38: /* right alt key (alt gr) */
664 keycode = 0x5D;
665 break;
666 case 0x46: /* ctrl-pause/break on AT 101 (see below) */
667 keycode = 0x68;
668 break;
669 case 0x47: /* grey home key */
670 keycode = 0x5E;
671 break;
672 case 0x48: /* grey up arrow key */
673 keycode = 0x5F;
674 break;
675 case 0x49: /* grey page up key */
676 keycode = 0x60;
677 break;
678 case 0x4B: /* grey left arrow key */
679 keycode = 0x61;
680 break;
681 case 0x4D: /* grey right arrow key */
682 keycode = 0x62;
683 break;
684 case 0x4F: /* grey end key */
685 keycode = 0x63;
686 break;
687 case 0x50: /* grey down arrow key */
688 keycode = 0x64;
689 break;
690 case 0x51: /* grey page down key */
691 keycode = 0x65;
692 break;
693 case 0x52: /* grey insert key */
694 keycode = 0x66;
695 break;
696 case 0x53: /* grey delete key */
697 keycode = 0x67;
698 break;
699 /* the following 3 are only used on the MS "Natural" keyboard */
700 case 0x5b: /* left Window key */
701 keycode = 0x69;
702 break;
703 case 0x5c: /* right Window key */
704 keycode = 0x6a;
705 break;
706 case 0x5d: /* menu key */
707 keycode = 0x6b;
708 break;
709 case 0x5e: /* power key */
710 keycode = 0x6d;
711 break;
712 case 0x5f: /* sleep key */
713 keycode = 0x6e;
714 break;
715 case 0x63: /* wake key */
716 keycode = 0x6f;
717 break;
718 default: /* ignore everything else */
719 goto next_code;
720 }
721 break;
722 case 0xE1: /* 0xE1 prefix */
723 /*
724 * The pause/break key on the 101 keyboard produces:
725 * E1-1D-45 E1-9D-C5
726 * Ctrl-pause/break produces:
727 * E0-46 E0-C6 (See above.)
728 */
729 state->ks_prefix = 0;
730 if (keycode == 0x1D)
731 state->ks_prefix = 0x1D;
732 goto next_code;
733 /* NOT REACHED */
734 case 0x1D: /* pause / break */
735 state->ks_prefix = 0;
736 if (keycode != 0x45)
737 goto next_code;
738 keycode = 0x68;
739 break;
740 }
741
742 if (kbd->kb_type == KB_84) {
743 switch (keycode) {
744 case 0x37: /* *(numpad)/print screen */
745 if (state->ks_flags & SHIFTS)
746 keycode = 0x5c; /* print screen */
747 break;
748 case 0x45: /* num lock/pause */
749 if (state->ks_flags & CTLS)
750 keycode = 0x68; /* pause */
751 break;
752 case 0x46: /* scroll lock/break */
753 if (state->ks_flags & CTLS)
754 keycode = 0x6c; /* break */
755 break;
756 }
757 } else if (kbd->kb_type == KB_101) {
758 switch (keycode) {
759 case 0x5c: /* print screen */
760 if (state->ks_flags & ALTS)
761 keycode = 0x54; /* sysrq */
762 break;
763 case 0x68: /* pause/break */
764 if (state->ks_flags & CTLS)
765 keycode = 0x6c; /* break */
766 break;
767 }
768 }
769
770 /* return the key code in the K_CODE mode */
771 if (state->ks_mode == K_CODE)
772 return (keycode | (scancode & 0x80));
773
774 /* compose a character code */
775 if (state->ks_flags & COMPOSE) {
776 switch (keycode | (scancode & 0x80)) {
777 /* key pressed, process it */
778 case 0x47: case 0x48: case 0x49: /* keypad 7,8,9 */
779 state->ks_composed_char *= 10;
780 state->ks_composed_char += keycode - 0x40;
781 if (state->ks_composed_char > UCHAR_MAX)
782 return ERRKEY;
783 goto next_code;
784 case 0x4B: case 0x4C: case 0x4D: /* keypad 4,5,6 */
785 state->ks_composed_char *= 10;
786 state->ks_composed_char += keycode - 0x47;
787 if (state->ks_composed_char > UCHAR_MAX)
788 return ERRKEY;
789 goto next_code;
790 case 0x4F: case 0x50: case 0x51: /* keypad 1,2,3 */
791 state->ks_composed_char *= 10;
792 state->ks_composed_char += keycode - 0x4E;
793 if (state->ks_composed_char > UCHAR_MAX)
794 return ERRKEY;
795 goto next_code;
796 case 0x52: /* keypad 0 */
797 state->ks_composed_char *= 10;
798 if (state->ks_composed_char > UCHAR_MAX)
799 return ERRKEY;
800 goto next_code;
801
802 /* key released, no interest here */
803 case 0xC7: case 0xC8: case 0xC9: /* keypad 7,8,9 */
804 case 0xCB: case 0xCC: case 0xCD: /* keypad 4,5,6 */
805 case 0xCF: case 0xD0: case 0xD1: /* keypad 1,2,3 */
806 case 0xD2: /* keypad 0 */
807 goto next_code;
808
809 case 0x38: /* left alt key */
810 break;
811
812 default:
813 if (state->ks_composed_char > 0) {
814 state->ks_flags &= ~COMPOSE;
815 state->ks_composed_char = 0;
816 return ERRKEY;
817 }
818 break;
819 }
820 }
821
822 /* keycode to key action */
823 action = genkbd_keyaction(kbd, keycode, scancode & 0x80,
824 &state->ks_state, &state->ks_accents);
825 if (action == NOKEY)
826 goto next_code;
827 else
828 return action;
829 }
830
831 /* check if char is waiting */
832 static int
833 atkbd_check_char(keyboard_t *kbd)
834 {
835 atkbd_state_t *state;
836
837 if (!KBD_IS_ACTIVE(kbd))
838 return FALSE;
839 state = (atkbd_state_t *)kbd->kb_data;
840 if (!(state->ks_flags & COMPOSE) && (state->ks_composed_char > 0))
841 return TRUE;
842 return kbdc_data_ready(state->kbdc);
843 }
844
845 /* some useful control functions */
846 static int
847 atkbd_ioctl(keyboard_t *kbd, u_long cmd, caddr_t arg)
848 {
849 /* translate LED_XXX bits into the device specific bits */
850 static u_char ledmap[8] = {
851 0, 4, 2, 6, 1, 5, 3, 7,
852 };
853 atkbd_state_t *state = kbd->kb_data;
854 int error;
855 int s;
856 int i;
857 int ival;
858
859 s = spltty();
860 switch (cmd) {
861
862 case KDGKBMODE: /* get keyboard mode */
863 *(int *)arg = state->ks_mode;
864 break;
865 case _IO('K', 7):
866 ival = IOCPARM_IVAL(arg);
867 arg = (caddr_t)&ival;
868 /* FALLTHROUGH */
869 case KDSKBMODE: /* set keyboard mode */
870 switch (*(int *)arg) {
871 case K_XLATE:
872 if (state->ks_mode != K_XLATE) {
873 /* make lock key state and LED state match */
874 state->ks_state &= ~LOCK_MASK;
875 state->ks_state |= KBD_LED_VAL(kbd);
876 }
877 /* FALLTHROUGH */
878 case K_RAW:
879 case K_CODE:
880 if (state->ks_mode != *(int *)arg) {
881 atkbd_clear_state(kbd);
882 state->ks_mode = *(int *)arg;
883 }
884 break;
885 default:
886 splx(s);
887 return EINVAL;
888 }
889 break;
890
891 case KDGETLED: /* get keyboard LED */
892 *(int *)arg = KBD_LED_VAL(kbd);
893 break;
894 case _IO('K', 66):
895 ival = IOCPARM_IVAL(arg);
896 arg = (caddr_t)&ival;
897 /* FALLTHROUGH */
898 case KDSETLED: /* set keyboard LED */
899 /* NOTE: lock key state in ks_state won't be changed */
900 if (*(int *)arg & ~LOCK_MASK) {
901 splx(s);
902 return EINVAL;
903 }
904 i = *(int *)arg;
905 /* replace CAPS LED with ALTGR LED for ALTGR keyboards */
906 if (state->ks_mode == K_XLATE &&
907 kbd->kb_keymap->n_keys > ALTGR_OFFSET) {
908 if (i & ALKED)
909 i |= CLKED;
910 else
911 i &= ~CLKED;
912 }
913 if (KBD_HAS_DEVICE(kbd)) {
914 error = write_kbd(state->kbdc, KBDC_SET_LEDS,
915 ledmap[i & LED_MASK]);
916 if (error) {
917 splx(s);
918 return error;
919 }
920 }
921 KBD_LED_VAL(kbd) = *(int *)arg;
922 break;
923
924 case KDGKBSTATE: /* get lock key state */
925 *(int *)arg = state->ks_state & LOCK_MASK;
926 break;
927 case _IO('K', 20):
928 ival = IOCPARM_IVAL(arg);
929 arg = (caddr_t)&ival;
930 /* FALLTHROUGH */
931 case KDSKBSTATE: /* set lock key state */
932 if (*(int *)arg & ~LOCK_MASK) {
933 splx(s);
934 return EINVAL;
935 }
936 state->ks_state &= ~LOCK_MASK;
937 state->ks_state |= *(int *)arg;
938 splx(s);
939 /* set LEDs and quit */
940 return atkbd_ioctl(kbd, KDSETLED, arg);
941
942 case KDSETREPEAT: /* set keyboard repeat rate (new interface) */
943 splx(s);
944 if (!KBD_HAS_DEVICE(kbd))
945 return 0;
946 i = typematic(((int *)arg)[0], ((int *)arg)[1]);
947 error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, i);
948 if (error == 0) {
949 kbd->kb_delay1 = typematic_delay(i);
950 kbd->kb_delay2 = typematic_rate(i);
951 }
952 return error;
953
954 case _IO('K', 67):
955 ival = IOCPARM_IVAL(arg);
956 arg = (caddr_t)&ival;
957 /* FALLTHROUGH */
958 case KDSETRAD: /* set keyboard repeat rate (old interface) */
959 splx(s);
960 if (!KBD_HAS_DEVICE(kbd))
961 return 0;
962 error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, *(int *)arg);
963 if (error == 0) {
964 kbd->kb_delay1 = typematic_delay(*(int *)arg);
965 kbd->kb_delay2 = typematic_rate(*(int *)arg);
966 }
967 return error;
968
969 case PIO_KEYMAP: /* set keyboard translation table */
970 case PIO_KEYMAPENT: /* set keyboard translation table entry */
971 case PIO_DEADKEYMAP: /* set accent key translation table */
972 state->ks_accents = 0;
973 /* FALLTHROUGH */
974 default:
975 splx(s);
976 return genkbd_commonioctl(kbd, cmd, arg);
977 }
978
979 splx(s);
980 return 0;
981 }
982
983 /* lock the access to the keyboard */
984 static int
985 atkbd_lock(keyboard_t *kbd, int lock)
986 {
987 return kbdc_lock(((atkbd_state_t *)kbd->kb_data)->kbdc, lock);
988 }
989
990 /* clear the internal state of the keyboard */
991 static void
992 atkbd_clear_state(keyboard_t *kbd)
993 {
994 atkbd_state_t *state;
995
996 state = (atkbd_state_t *)kbd->kb_data;
997 state->ks_flags = 0;
998 state->ks_polling = 0;
999 state->ks_state &= LOCK_MASK; /* preserve locking key state */
1000 state->ks_accents = 0;
1001 state->ks_composed_char = 0;
1002 #if 0
1003 state->ks_prefix = 0; /* XXX */
1004 #endif
1005 }
1006
1007 /* save the internal state */
1008 static int
1009 atkbd_get_state(keyboard_t *kbd, void *buf, size_t len)
1010 {
1011 if (len == 0)
1012 return sizeof(atkbd_state_t);
1013 if (len < sizeof(atkbd_state_t))
1014 return -1;
1015 bcopy(kbd->kb_data, buf, sizeof(atkbd_state_t));
1016 return 0;
1017 }
1018
1019 /* set the internal state */
1020 static int
1021 atkbd_set_state(keyboard_t *kbd, void *buf, size_t len)
1022 {
1023 if (len < sizeof(atkbd_state_t))
1024 return ENOMEM;
1025 if (((atkbd_state_t *)kbd->kb_data)->kbdc
1026 != ((atkbd_state_t *)buf)->kbdc)
1027 return ENOMEM;
1028 bcopy(buf, kbd->kb_data, sizeof(atkbd_state_t));
1029 return 0;
1030 }
1031
1032 static int
1033 atkbd_poll(keyboard_t *kbd, int on)
1034 {
1035 atkbd_state_t *state;
1036 int s;
1037
1038 state = (atkbd_state_t *)kbd->kb_data;
1039 s = spltty();
1040 if (on)
1041 ++state->ks_polling;
1042 else
1043 --state->ks_polling;
1044 splx(s);
1045 return 0;
1046 }
1047
1048 static void
1049 atkbd_shutdown_final(void *v)
1050 {
1051 #ifdef __sparc64__
1052 keyboard_t *kbd = v;
1053 KBDC kbdc = ((atkbd_state_t *)kbd->kb_data)->kbdc;
1054
1055 /*
1056 * Turn off the translation in preparation for handing the keyboard
1057 * over to the OFW as the OBP driver doesn't use translation and
1058 * also doesn't disable it itself resulting in a broken keymap at
1059 * the boot prompt. Also disable the aux port and the interrupts as
1060 * the OBP driver doesn't use them, i.e. polls the keyboard. Not
1061 * disabling the interrupts doesn't cause real problems but the
1062 * responsiveness is a bit better when they are turned off.
1063 */
1064 send_kbd_command(kbdc, KBDC_DISABLE_KBD);
1065 set_controller_command_byte(kbdc,
1066 KBD_AUX_CONTROL_BITS | KBD_KBD_CONTROL_BITS | KBD_TRANSLATION,
1067 KBD_DISABLE_AUX_PORT | KBD_DISABLE_KBD_INT | KBD_ENABLE_KBD_PORT);
1068 send_kbd_command(kbdc, KBDC_ENABLE_KBD);
1069 #endif
1070 }
1071
1072 /* local functions */
1073
1074 static int
1075 get_typematic(keyboard_t *kbd)
1076 {
1077 #ifdef __i386__
1078 /*
1079 * Only some systems allow us to retrieve the keyboard repeat
1080 * rate previously set via the BIOS...
1081 */
1082 struct vm86frame vmf;
1083 u_int32_t p;
1084
1085 bzero(&vmf, sizeof(vmf));
1086 vmf.vmf_ax = 0xc000;
1087 vm86_intcall(0x15, &vmf);
1088 if ((vmf.vmf_eflags & PSL_C) || vmf.vmf_ah)
1089 return ENODEV;
1090 p = BIOS_PADDRTOVADDR(((u_int32_t)vmf.vmf_es << 4) + vmf.vmf_bx);
1091 if ((readb(p + 6) & 0x40) == 0) /* int 16, function 0x09 supported? */
1092 return ENODEV;
1093 vmf.vmf_ax = 0x0900;
1094 vm86_intcall(0x16, &vmf);
1095 if ((vmf.vmf_al & 0x08) == 0) /* int 16, function 0x0306 supported? */
1096 return ENODEV;
1097 vmf.vmf_ax = 0x0306;
1098 vm86_intcall(0x16, &vmf);
1099 kbd->kb_delay1 = typematic_delay(vmf.vmf_bh << 5);
1100 kbd->kb_delay2 = typematic_rate(vmf.vmf_bl);
1101 return 0;
1102 #else
1103 return ENODEV;
1104 #endif /* __i386__ */
1105 }
1106
1107 static int
1108 setup_kbd_port(KBDC kbdc, int port, int intr)
1109 {
1110 if (!set_controller_command_byte(kbdc,
1111 KBD_KBD_CONTROL_BITS,
1112 ((port) ? KBD_ENABLE_KBD_PORT : KBD_DISABLE_KBD_PORT)
1113 | ((intr) ? KBD_ENABLE_KBD_INT : KBD_DISABLE_KBD_INT)))
1114 return 1;
1115 return 0;
1116 }
1117
1118 static int
1119 get_kbd_echo(KBDC kbdc)
1120 {
1121 /* enable the keyboard port, but disable the keyboard intr. */
1122 if (setup_kbd_port(kbdc, TRUE, FALSE))
1123 /* CONTROLLER ERROR: there is very little we can do... */
1124 return ENXIO;
1125
1126 /* see if something is present */
1127 write_kbd_command(kbdc, KBDC_ECHO);
1128 if (read_kbd_data(kbdc) != KBD_ECHO) {
1129 empty_both_buffers(kbdc, 10);
1130 test_controller(kbdc);
1131 test_kbd_port(kbdc);
1132 return ENXIO;
1133 }
1134
1135 /* enable the keyboard port and intr. */
1136 if (setup_kbd_port(kbdc, TRUE, TRUE)) {
1137 /*
1138 * CONTROLLER ERROR
1139 * This is serious; the keyboard intr is left disabled!
1140 */
1141 return ENXIO;
1142 }
1143
1144 return 0;
1145 }
1146
1147 static int
1148 probe_keyboard(KBDC kbdc, int flags)
1149 {
1150 /*
1151 * Don't try to print anything in this function. The low-level
1152 * console may not have been initialized yet...
1153 */
1154 int err;
1155 int c;
1156 int m;
1157
1158 if (!kbdc_lock(kbdc, TRUE)) {
1159 /* driver error? */
1160 return ENXIO;
1161 }
1162
1163 /* temporarily block data transmission from the keyboard */
1164 write_controller_command(kbdc, KBDC_DISABLE_KBD_PORT);
1165
1166 /* flush any noise in the buffer */
1167 empty_both_buffers(kbdc, 100);
1168
1169 /* save the current keyboard controller command byte */
1170 m = kbdc_get_device_mask(kbdc) & ~KBD_KBD_CONTROL_BITS;
1171 c = get_controller_command_byte(kbdc);
1172 if (c == -1) {
1173 /* CONTROLLER ERROR */
1174 kbdc_set_device_mask(kbdc, m);
1175 kbdc_lock(kbdc, FALSE);
1176 return ENXIO;
1177 }
1178
1179 /*
1180 * The keyboard may have been screwed up by the boot block.
1181 * We may just be able to recover from error by testing the controller
1182 * and the keyboard port. The controller command byte needs to be
1183 * saved before this recovery operation, as some controllers seem
1184 * to set the command byte to particular values.
1185 */
1186 test_controller(kbdc);
1187 if (!(flags & KB_CONF_NO_PROBE_TEST))
1188 test_kbd_port(kbdc);
1189
1190 err = get_kbd_echo(kbdc);
1191
1192 /*
1193 * Even if the keyboard doesn't seem to be present (err != 0),
1194 * we shall enable the keyboard port and interrupt so that
1195 * the driver will be operable when the keyboard is attached
1196 * to the system later. It is NOT recommended to hot-plug
1197 * the AT keyboard, but many people do so...
1198 */
1199 kbdc_set_device_mask(kbdc, m | KBD_KBD_CONTROL_BITS);
1200 setup_kbd_port(kbdc, TRUE, TRUE);
1201 #if 0
1202 if (err == 0) {
1203 kbdc_set_device_mask(kbdc, m | KBD_KBD_CONTROL_BITS);
1204 } else {
1205 /* try to restore the command byte as before */
1206 set_controller_command_byte(kbdc, 0xff, c);
1207 kbdc_set_device_mask(kbdc, m);
1208 }
1209 #endif
1210
1211 kbdc_lock(kbdc, FALSE);
1212 return err;
1213 }
1214
1215 static int
1216 init_keyboard(KBDC kbdc, int *type, int flags)
1217 {
1218 int codeset;
1219 int id;
1220 int c;
1221
1222 if (!kbdc_lock(kbdc, TRUE)) {
1223 /* driver error? */
1224 return EIO;
1225 }
1226
1227 /* temporarily block data transmission from the keyboard */
1228 write_controller_command(kbdc, KBDC_DISABLE_KBD_PORT);
1229
1230 /* save the current controller command byte */
1231 empty_both_buffers(kbdc, 200);
1232 c = get_controller_command_byte(kbdc);
1233 if (c == -1) {
1234 /* CONTROLLER ERROR */
1235 kbdc_lock(kbdc, FALSE);
1236 printf("atkbd: unable to get the current command byte value.\n");
1237 return EIO;
1238 }
1239 if (bootverbose)
1240 printf("atkbd: the current kbd controller command byte %04x\n",
1241 c);
1242 #if 0
1243 /* override the keyboard lock switch */
1244 c |= KBD_OVERRIDE_KBD_LOCK;
1245 #endif
1246
1247 /* enable the keyboard port, but disable the keyboard intr. */
1248 if (setup_kbd_port(kbdc, TRUE, FALSE)) {
1249 /* CONTROLLER ERROR: there is very little we can do... */
1250 printf("atkbd: unable to set the command byte.\n");
1251 kbdc_lock(kbdc, FALSE);
1252 return EIO;
1253 }
1254
1255 /*
1256 * Check if we have an XT keyboard before we attempt to reset it.
1257 * The procedure assumes that the keyboard and the controller have
1258 * been set up properly by BIOS and have not been messed up
1259 * during the boot process.
1260 */
1261 codeset = -1;
1262 if (flags & KB_CONF_ALT_SCANCODESET)
1263 /* the user says there is a XT keyboard */
1264 codeset = 1;
1265 #ifdef KBD_DETECT_XT_KEYBOARD
1266 else if ((c & KBD_TRANSLATION) == 0) {
1267 /* SET_SCANCODE_SET is not always supported; ignore error */
1268 if (send_kbd_command_and_data(kbdc, KBDC_SET_SCANCODE_SET, 0)
1269 == KBD_ACK)
1270 codeset = read_kbd_data(kbdc);
1271 }
1272 if (bootverbose)
1273 printf("atkbd: scancode set %d\n", codeset);
1274 #endif /* KBD_DETECT_XT_KEYBOARD */
1275
1276 *type = KB_OTHER;
1277 id = get_kbd_id(kbdc);
1278 switch(id) {
1279 case 0x41ab: /* 101/102/... Enhanced */
1280 case 0x83ab: /* ditto */
1281 case 0x54ab: /* SpaceSaver */
1282 case 0x84ab: /* ditto */
1283 #if 0
1284 case 0x90ab: /* 'G' */
1285 case 0x91ab: /* 'P' */
1286 case 0x92ab: /* 'A' */
1287 #endif
1288 *type = KB_101;
1289 break;
1290 case -1: /* AT 84 keyboard doesn't return ID */
1291 *type = KB_84;
1292 break;
1293 default:
1294 break;
1295 }
1296 if (bootverbose)
1297 printf("atkbd: keyboard ID 0x%x (%d)\n", id, *type);
1298
1299 /* reset keyboard hardware */
1300 if (!(flags & KB_CONF_NO_RESET) && !reset_kbd(kbdc)) {
1301 /*
1302 * KEYBOARD ERROR
1303 * Keyboard reset may fail either because the keyboard
1304 * doen't exist, or because the keyboard doesn't pass
1305 * the self-test, or the keyboard controller on the
1306 * motherboard and the keyboard somehow fail to shake hands.
1307 * It is just possible, particularly in the last case,
1308 * that the keyboard controller may be left in a hung state.
1309 * test_controller() and test_kbd_port() appear to bring
1310 * the keyboard controller back (I don't know why and how,
1311 * though.)
1312 */
1313 empty_both_buffers(kbdc, 10);
1314 test_controller(kbdc);
1315 test_kbd_port(kbdc);
1316 /*
1317 * We could disable the keyboard port and interrupt... but,
1318 * the keyboard may still exist (see above).
1319 */
1320 set_controller_command_byte(kbdc, 0xff, c);
1321 kbdc_lock(kbdc, FALSE);
1322 if (bootverbose)
1323 printf("atkbd: failed to reset the keyboard.\n");
1324 return EIO;
1325 }
1326
1327 /*
1328 * Allow us to set the XT_KEYBD flag so that keyboards
1329 * such as those on the IBM ThinkPad laptop computers can be used
1330 * with the standard console driver.
1331 */
1332 if (codeset == 1) {
1333 if (send_kbd_command_and_data(kbdc,
1334 KBDC_SET_SCANCODE_SET, codeset) == KBD_ACK) {
1335 /* XT kbd doesn't need scan code translation */
1336 c &= ~KBD_TRANSLATION;
1337 } else {
1338 /*
1339 * KEYBOARD ERROR
1340 * The XT kbd isn't usable unless the proper scan
1341 * code set is selected.
1342 */
1343 set_controller_command_byte(kbdc, 0xff, c);
1344 kbdc_lock(kbdc, FALSE);
1345 printf("atkbd: unable to set the XT keyboard mode.\n");
1346 return EIO;
1347 }
1348 }
1349
1350 #if defined(__alpha__) || defined(__sparc64__)
1351 if (send_kbd_command_and_data(
1352 kbdc, KBDC_SET_SCANCODE_SET, 2) != KBD_ACK) {
1353 printf("atkbd: can't set translation.\n");
1354 }
1355 c |= KBD_TRANSLATION;
1356 #endif
1357
1358 /* enable the keyboard port and intr. */
1359 if (!set_controller_command_byte(kbdc,
1360 KBD_KBD_CONTROL_BITS | KBD_TRANSLATION | KBD_OVERRIDE_KBD_LOCK,
1361 (c & (KBD_TRANSLATION | KBD_OVERRIDE_KBD_LOCK))
1362 | KBD_ENABLE_KBD_PORT | KBD_ENABLE_KBD_INT)) {
1363 /*
1364 * CONTROLLER ERROR
1365 * This is serious; we are left with the disabled
1366 * keyboard intr.
1367 */
1368 set_controller_command_byte(kbdc, 0xff, c);
1369 kbdc_lock(kbdc, FALSE);
1370 printf("atkbd: unable to enable the keyboard port and intr.\n");
1371 return EIO;
1372 }
1373
1374 kbdc_lock(kbdc, FALSE);
1375 return 0;
1376 }
1377
1378 static int
1379 write_kbd(KBDC kbdc, int command, int data)
1380 {
1381 int s;
1382
1383 /* prevent the timeout routine from polling the keyboard */
1384 if (!kbdc_lock(kbdc, TRUE))
1385 return EBUSY;
1386
1387 /* disable the keyboard and mouse interrupt */
1388 s = spltty();
1389 #if 0
1390 c = get_controller_command_byte(kbdc);
1391 if ((c == -1)
1392 || !set_controller_command_byte(kbdc,
1393 kbdc_get_device_mask(kbdc),
1394 KBD_DISABLE_KBD_PORT | KBD_DISABLE_KBD_INT
1395 | KBD_DISABLE_AUX_PORT | KBD_DISABLE_AUX_INT)) {
1396 /* CONTROLLER ERROR */
1397 kbdc_lock(kbdc, FALSE);
1398 splx(s);
1399 return EIO;
1400 }
1401 /*
1402 * Now that the keyboard controller is told not to generate
1403 * the keyboard and mouse interrupts, call `splx()' to allow
1404 * the other tty interrupts. The clock interrupt may also occur,
1405 * but the timeout routine (`scrn_timer()') will be blocked
1406 * by the lock flag set via `kbdc_lock()'
1407 */
1408 splx(s);
1409 #endif
1410
1411 if (send_kbd_command_and_data(kbdc, command, data) != KBD_ACK)
1412 send_kbd_command(kbdc, KBDC_ENABLE_KBD);
1413
1414 #if 0
1415 /* restore the interrupts */
1416 if (!set_controller_command_byte(kbdc,
1417 kbdc_get_device_mask(kbdc),
1418 c & (KBD_KBD_CONTROL_BITS | KBD_AUX_CONTROL_BITS))) {
1419 /* CONTROLLER ERROR */
1420 }
1421 #else
1422 splx(s);
1423 #endif
1424 kbdc_lock(kbdc, FALSE);
1425
1426 return 0;
1427 }
1428
1429 static int
1430 get_kbd_id(KBDC kbdc)
1431 {
1432 int id1, id2;
1433
1434 empty_both_buffers(kbdc, 10);
1435 id1 = id2 = -1;
1436 if (send_kbd_command(kbdc, KBDC_SEND_DEV_ID) != KBD_ACK)
1437 return -1;
1438
1439 DELAY(10000); /* 10 msec delay */
1440 id1 = read_kbd_data(kbdc);
1441 if (id1 != -1)
1442 id2 = read_kbd_data(kbdc);
1443
1444 if ((id1 == -1) || (id2 == -1)) {
1445 empty_both_buffers(kbdc, 10);
1446 test_controller(kbdc);
1447 test_kbd_port(kbdc);
1448 return -1;
1449 }
1450 return ((id2 << 8) | id1);
1451 }
1452
1453 static int delays[] = { 250, 500, 750, 1000 };
1454 static int rates[] = { 34, 38, 42, 46, 50, 55, 59, 63,
1455 68, 76, 84, 92, 100, 110, 118, 126,
1456 136, 152, 168, 184, 200, 220, 236, 252,
1457 272, 304, 336, 368, 400, 440, 472, 504 };
1458
1459 static int
1460 typematic_delay(int i)
1461 {
1462 return delays[(i >> 5) & 3];
1463 }
1464
1465 static int
1466 typematic_rate(int i)
1467 {
1468 return rates[i & 0x1f];
1469 }
1470
1471 static int
1472 typematic(int delay, int rate)
1473 {
1474 int value;
1475 int i;
1476
1477 for (i = sizeof(delays)/sizeof(delays[0]) - 1; i > 0; --i) {
1478 if (delay >= delays[i])
1479 break;
1480 }
1481 value = i << 5;
1482 for (i = sizeof(rates)/sizeof(rates[0]) - 1; i > 0; --i) {
1483 if (rate >= rates[i])
1484 break;
1485 }
1486 value |= i;
1487 return value;
1488 }
Cache object: 70e773dccd937af5803d2c8e630af34e
|