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: releng/8.1/sys/dev/atkbdc/atkbd.c 204546 2010-03-02 01:56:55Z delphij $");
30
31 #include "opt_compat.h"
32 #include "opt_kbd.h"
33 #include "opt_atkbd.h"
34
35 #include <sys/param.h>
36 #include <sys/systm.h>
37 #include <sys/kernel.h>
38 #include <sys/bus.h>
39 #include <sys/eventhandler.h>
40 #include <sys/proc.h>
41 #include <sys/limits.h>
42 #include <sys/malloc.h>
43
44 #include <machine/bus.h>
45 #include <machine/resource.h>
46
47 #if defined(__i386__) || defined(__amd64__)
48 #include <machine/md_var.h>
49 #include <machine/psl.h>
50 #include <compat/x86bios/x86bios.h>
51 #include <machine/pc/bios.h>
52
53 #include <vm/vm.h>
54 #include <vm/pmap.h>
55 #include <vm/vm_param.h>
56
57 #include <isa/isareg.h>
58 #endif /* __i386__ || __amd64__ */
59
60 #include <sys/kbio.h>
61 #include <dev/kbd/kbdreg.h>
62 #include <dev/atkbdc/atkbdreg.h>
63 #include <dev/atkbdc/atkbdcreg.h>
64
65 static timeout_t atkbd_timeout;
66 static void atkbd_shutdown_final(void *v);
67
68 int
69 atkbd_probe_unit(int unit, int ctlr, int irq, int flags)
70 {
71 keyboard_switch_t *sw;
72 int args[2];
73 int error;
74
75 sw = kbd_get_switch(ATKBD_DRIVER_NAME);
76 if (sw == NULL)
77 return ENXIO;
78
79 args[0] = ctlr;
80 args[1] = irq;
81 error = (*sw->probe)(unit, args, flags);
82 if (error)
83 return error;
84 return 0;
85 }
86
87 int
88 atkbd_attach_unit(int unit, keyboard_t **kbd, int ctlr, int irq, int flags)
89 {
90 keyboard_switch_t *sw;
91 int args[2];
92 int error;
93
94 sw = kbd_get_switch(ATKBD_DRIVER_NAME);
95 if (sw == NULL)
96 return ENXIO;
97
98 /* reset, initialize and enable the device */
99 args[0] = ctlr;
100 args[1] = irq;
101 *kbd = NULL;
102 error = (*sw->probe)(unit, args, flags);
103 if (error)
104 return error;
105 error = (*sw->init)(unit, kbd, args, flags);
106 if (error)
107 return error;
108 (*sw->enable)(*kbd);
109
110 #ifdef KBD_INSTALL_CDEV
111 /* attach a virtual keyboard cdev */
112 error = kbd_attach(*kbd);
113 if (error)
114 return error;
115 #endif
116
117 /*
118 * This is a kludge to compensate for lost keyboard interrupts.
119 * A similar code used to be in syscons. See below. XXX
120 */
121 atkbd_timeout(*kbd);
122
123 if (bootverbose)
124 (*sw->diag)(*kbd, bootverbose);
125
126 EVENTHANDLER_REGISTER(shutdown_final, atkbd_shutdown_final, *kbd,
127 SHUTDOWN_PRI_DEFAULT);
128
129 return 0;
130 }
131
132 static void
133 atkbd_timeout(void *arg)
134 {
135 keyboard_t *kbd;
136 int s;
137
138 /*
139 * The original text of the following comments are extracted
140 * from syscons.c (1.287)
141 *
142 * With release 2.1 of the Xaccel server, the keyboard is left
143 * hanging pretty often. Apparently an interrupt from the
144 * keyboard is lost, and I don't know why (yet).
145 * This ugly hack calls the low-level interrupt routine if input
146 * is ready for the keyboard and conveniently hides the problem. XXX
147 *
148 * Try removing anything stuck in the keyboard controller; whether
149 * it's a keyboard scan code or mouse data. The low-level
150 * interrupt routine doesn't read the mouse data directly,
151 * but the keyboard controller driver will, as a side effect.
152 */
153 /*
154 * And here is bde's original comment about this:
155 *
156 * This is necessary to handle edge triggered interrupts - if we
157 * returned when our IRQ is high due to unserviced input, then there
158 * would be no more keyboard IRQs until the keyboard is reset by
159 * external powers.
160 *
161 * The keyboard apparently unwedges the irq in most cases.
162 */
163 s = spltty();
164 kbd = (keyboard_t *)arg;
165 if (kbdd_lock(kbd, TRUE)) {
166 /*
167 * We have seen the lock flag is not set. Let's reset
168 * the flag early, otherwise the LED update routine fails
169 * which may want the lock during the interrupt routine.
170 */
171 kbdd_lock(kbd, FALSE);
172 if (kbdd_check_char(kbd))
173 kbdd_intr(kbd, NULL);
174 }
175 splx(s);
176 timeout(atkbd_timeout, arg, hz/10);
177 }
178
179 /* LOW-LEVEL */
180
181 #define ATKBD_DEFAULT 0
182
183 typedef struct atkbd_state {
184 KBDC kbdc; /* keyboard controller */
185 int ks_mode; /* input mode (K_XLATE,K_RAW,K_CODE) */
186 int ks_flags; /* flags */
187 #define COMPOSE (1 << 0)
188 int ks_polling;
189 int ks_state; /* shift/lock key state */
190 int ks_accents; /* accent key index (> 0) */
191 u_int ks_composed_char; /* composed char code (> 0) */
192 u_char ks_prefix; /* AT scan code prefix */
193 } atkbd_state_t;
194
195 /* keyboard driver declaration */
196 static int atkbd_configure(int flags);
197 static kbd_probe_t atkbd_probe;
198 static kbd_init_t atkbd_init;
199 static kbd_term_t atkbd_term;
200 static kbd_intr_t atkbd_intr;
201 static kbd_test_if_t atkbd_test_if;
202 static kbd_enable_t atkbd_enable;
203 static kbd_disable_t atkbd_disable;
204 static kbd_read_t atkbd_read;
205 static kbd_check_t atkbd_check;
206 static kbd_read_char_t atkbd_read_char;
207 static kbd_check_char_t atkbd_check_char;
208 static kbd_ioctl_t atkbd_ioctl;
209 static kbd_lock_t atkbd_lock;
210 static kbd_clear_state_t atkbd_clear_state;
211 static kbd_get_state_t atkbd_get_state;
212 static kbd_set_state_t atkbd_set_state;
213 static kbd_poll_mode_t atkbd_poll;
214
215 static keyboard_switch_t atkbdsw = {
216 atkbd_probe,
217 atkbd_init,
218 atkbd_term,
219 atkbd_intr,
220 atkbd_test_if,
221 atkbd_enable,
222 atkbd_disable,
223 atkbd_read,
224 atkbd_check,
225 atkbd_read_char,
226 atkbd_check_char,
227 atkbd_ioctl,
228 atkbd_lock,
229 atkbd_clear_state,
230 atkbd_get_state,
231 atkbd_set_state,
232 genkbd_get_fkeystr,
233 atkbd_poll,
234 genkbd_diag,
235 };
236
237 KEYBOARD_DRIVER(atkbd, atkbdsw, atkbd_configure);
238
239 /* local functions */
240 static int get_typematic(keyboard_t *kbd);
241 static int setup_kbd_port(KBDC kbdc, int port, int intr);
242 static int get_kbd_echo(KBDC kbdc);
243 static int probe_keyboard(KBDC kbdc, int flags);
244 static int init_keyboard(KBDC kbdc, int *type, int flags);
245 static int write_kbd(KBDC kbdc, int command, int data);
246 static int get_kbd_id(KBDC kbdc);
247 static int typematic(int delay, int rate);
248 static int typematic_delay(int delay);
249 static int typematic_rate(int rate);
250
251 /* local variables */
252
253 /* the initial key map, accent map and fkey strings */
254 #ifdef ATKBD_DFLT_KEYMAP
255 #define KBD_DFLT_KEYMAP
256 #include "atkbdmap.h"
257 #endif
258 #include <dev/kbd/kbdtables.h>
259
260 /* structures for the default keyboard */
261 static keyboard_t default_kbd;
262 static atkbd_state_t default_kbd_state;
263 static keymap_t default_keymap;
264 static accentmap_t default_accentmap;
265 static fkeytab_t default_fkeytab[NUM_FKEYS];
266
267 /*
268 * The back door to the keyboard driver!
269 * This function is called by the console driver, via the kbdio module,
270 * to tickle keyboard drivers when the low-level console is being initialized.
271 * Almost nothing in the kernel has been initialied yet. Try to probe
272 * keyboards if possible.
273 * NOTE: because of the way the low-level console is initialized, this routine
274 * may be called more than once!!
275 */
276 static int
277 atkbd_configure(int flags)
278 {
279 keyboard_t *kbd;
280 int arg[2];
281 int i;
282
283 /*
284 * Probe the keyboard controller, if not present or if the driver
285 * is disabled, unregister the keyboard if any.
286 */
287 if (atkbdc_configure() != 0 ||
288 resource_disabled("atkbd", ATKBD_DEFAULT)) {
289 i = kbd_find_keyboard(ATKBD_DRIVER_NAME, ATKBD_DEFAULT);
290 if (i >= 0) {
291 kbd = kbd_get_keyboard(i);
292 kbd_unregister(kbd);
293 kbd->kb_flags &= ~KB_REGISTERED;
294 }
295 return 0;
296 }
297
298 /* XXX: a kludge to obtain the device configuration flags */
299 if (resource_int_value("atkbd", ATKBD_DEFAULT, "flags", &i) == 0)
300 flags |= i;
301
302 /* probe the default keyboard */
303 arg[0] = -1;
304 arg[1] = -1;
305 kbd = NULL;
306 if (atkbd_probe(ATKBD_DEFAULT, arg, flags))
307 return 0;
308 if (atkbd_init(ATKBD_DEFAULT, &kbd, arg, flags))
309 return 0;
310
311 /* return the number of found keyboards */
312 return 1;
313 }
314
315 /* low-level functions */
316
317 /* detect a keyboard */
318 static int
319 atkbd_probe(int unit, void *arg, int flags)
320 {
321 KBDC kbdc;
322 int *data = (int *)arg; /* data[0]: controller, data[1]: irq */
323
324 /* XXX */
325 if (unit == ATKBD_DEFAULT) {
326 if (KBD_IS_PROBED(&default_kbd))
327 return 0;
328 }
329
330 kbdc = atkbdc_open(data[0]);
331 if (kbdc == NULL)
332 return ENXIO;
333 if (probe_keyboard(kbdc, flags)) {
334 if (flags & KB_CONF_FAIL_IF_NO_KBD)
335 return ENXIO;
336 }
337 return 0;
338 }
339
340 /* reset and initialize the device */
341 static int
342 atkbd_init(int unit, keyboard_t **kbdp, void *arg, int flags)
343 {
344 keyboard_t *kbd;
345 atkbd_state_t *state;
346 keymap_t *keymap;
347 accentmap_t *accmap;
348 fkeytab_t *fkeymap;
349 int fkeymap_size;
350 int delay[2];
351 int *data = (int *)arg; /* data[0]: controller, data[1]: irq */
352 int error, needfree;
353
354 /* XXX */
355 if (unit == ATKBD_DEFAULT) {
356 *kbdp = kbd = &default_kbd;
357 if (KBD_IS_INITIALIZED(kbd) && KBD_IS_CONFIGURED(kbd))
358 return 0;
359 state = &default_kbd_state;
360 keymap = &default_keymap;
361 accmap = &default_accentmap;
362 fkeymap = default_fkeytab;
363 fkeymap_size =
364 sizeof(default_fkeytab)/sizeof(default_fkeytab[0]);
365 needfree = 0;
366 } else if (*kbdp == NULL) {
367 *kbdp = kbd = malloc(sizeof(*kbd), M_DEVBUF, M_NOWAIT | M_ZERO);
368 state = malloc(sizeof(*state), M_DEVBUF, M_NOWAIT | M_ZERO);
369 /* NB: these will always be initialized 'cuz !KBD_IS_PROBED */
370 keymap = malloc(sizeof(key_map), M_DEVBUF, M_NOWAIT);
371 accmap = malloc(sizeof(accent_map), M_DEVBUF, M_NOWAIT);
372 fkeymap = malloc(sizeof(fkey_tab), M_DEVBUF, M_NOWAIT);
373 fkeymap_size = sizeof(fkey_tab)/sizeof(fkey_tab[0]);
374 needfree = 1;
375 if ((kbd == NULL) || (state == NULL) || (keymap == NULL)
376 || (accmap == NULL) || (fkeymap == NULL)) {
377 error = ENOMEM;
378 goto bad;
379 }
380 } else if (KBD_IS_INITIALIZED(*kbdp) && KBD_IS_CONFIGURED(*kbdp)) {
381 return 0;
382 } else {
383 kbd = *kbdp;
384 state = (atkbd_state_t *)kbd->kb_data;
385 bzero(state, sizeof(*state));
386 keymap = kbd->kb_keymap;
387 accmap = kbd->kb_accentmap;
388 fkeymap = kbd->kb_fkeytab;
389 fkeymap_size = kbd->kb_fkeytab_size;
390 needfree = 0;
391 }
392
393 if (!KBD_IS_PROBED(kbd)) {
394 state->kbdc = atkbdc_open(data[0]);
395 if (state->kbdc == NULL) {
396 error = ENXIO;
397 goto bad;
398 }
399 kbd_init_struct(kbd, ATKBD_DRIVER_NAME, KB_OTHER, unit, flags,
400 0, 0);
401 bcopy(&key_map, keymap, sizeof(key_map));
402 bcopy(&accent_map, accmap, sizeof(accent_map));
403 bcopy(fkey_tab, fkeymap,
404 imin(fkeymap_size*sizeof(fkeymap[0]), sizeof(fkey_tab)));
405 kbd_set_maps(kbd, keymap, accmap, fkeymap, fkeymap_size);
406 kbd->kb_data = (void *)state;
407
408 if (probe_keyboard(state->kbdc, flags)) { /* shouldn't happen */
409 if (flags & KB_CONF_FAIL_IF_NO_KBD) {
410 error = ENXIO;
411 goto bad;
412 }
413 } else {
414 KBD_FOUND_DEVICE(kbd);
415 }
416 atkbd_clear_state(kbd);
417 state->ks_mode = K_XLATE;
418 /*
419 * FIXME: set the initial value for lock keys in ks_state
420 * according to the BIOS data?
421 */
422 KBD_PROBE_DONE(kbd);
423 }
424 if (!KBD_IS_INITIALIZED(kbd) && !(flags & KB_CONF_PROBE_ONLY)) {
425 kbd->kb_config = flags & ~KB_CONF_PROBE_ONLY;
426 if (KBD_HAS_DEVICE(kbd)
427 && init_keyboard(state->kbdc, &kbd->kb_type, kbd->kb_config)
428 && (kbd->kb_config & KB_CONF_FAIL_IF_NO_KBD)) {
429 kbd_unregister(kbd);
430 error = ENXIO;
431 goto bad;
432 }
433 atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state);
434 get_typematic(kbd);
435 delay[0] = kbd->kb_delay1;
436 delay[1] = kbd->kb_delay2;
437 atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay);
438 KBD_INIT_DONE(kbd);
439 }
440 if (!KBD_IS_CONFIGURED(kbd)) {
441 if (kbd_register(kbd) < 0) {
442 error = ENXIO;
443 goto bad;
444 }
445 KBD_CONFIG_DONE(kbd);
446 }
447
448 return 0;
449 bad:
450 if (needfree) {
451 if (state != NULL)
452 free(state, M_DEVBUF);
453 if (keymap != NULL)
454 free(keymap, M_DEVBUF);
455 if (accmap != NULL)
456 free(accmap, M_DEVBUF);
457 if (fkeymap != NULL)
458 free(fkeymap, M_DEVBUF);
459 if (kbd != NULL) {
460 free(kbd, M_DEVBUF);
461 *kbdp = NULL; /* insure ref doesn't leak to caller */
462 }
463 }
464 return error;
465 }
466
467 /* finish using this keyboard */
468 static int
469 atkbd_term(keyboard_t *kbd)
470 {
471 kbd_unregister(kbd);
472 return 0;
473 }
474
475 /* keyboard interrupt routine */
476 static int
477 atkbd_intr(keyboard_t *kbd, void *arg)
478 {
479 atkbd_state_t *state = (atkbd_state_t *)kbd->kb_data;
480 int delay[2];
481 int c;
482
483 if (!KBD_HAS_DEVICE(kbd)) {
484 /*
485 * The keyboard was not detected before;
486 * it must have been reconnected!
487 */
488 init_keyboard(state->kbdc, &kbd->kb_type,
489 kbd->kb_config);
490 KBD_FOUND_DEVICE(kbd);
491 atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state);
492 get_typematic(kbd);
493 delay[0] = kbd->kb_delay1;
494 delay[1] = kbd->kb_delay2;
495 atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay);
496 }
497
498 if (state->ks_polling)
499 return 0;
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 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
858 defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
859 int ival;
860 #endif
861
862 s = spltty();
863 switch (cmd) {
864
865 case KDGKBMODE: /* get keyboard mode */
866 *(int *)arg = state->ks_mode;
867 break;
868 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
869 defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
870 case _IO('K', 7):
871 ival = IOCPARM_IVAL(arg);
872 arg = (caddr_t)&ival;
873 /* FALLTHROUGH */
874 #endif
875 case KDSKBMODE: /* set keyboard mode */
876 switch (*(int *)arg) {
877 case K_XLATE:
878 if (state->ks_mode != K_XLATE) {
879 /* make lock key state and LED state match */
880 state->ks_state &= ~LOCK_MASK;
881 state->ks_state |= KBD_LED_VAL(kbd);
882 }
883 /* FALLTHROUGH */
884 case K_RAW:
885 case K_CODE:
886 if (state->ks_mode != *(int *)arg) {
887 atkbd_clear_state(kbd);
888 state->ks_mode = *(int *)arg;
889 }
890 break;
891 default:
892 splx(s);
893 return EINVAL;
894 }
895 break;
896
897 case KDGETLED: /* get keyboard LED */
898 *(int *)arg = KBD_LED_VAL(kbd);
899 break;
900 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
901 defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
902 case _IO('K', 66):
903 ival = IOCPARM_IVAL(arg);
904 arg = (caddr_t)&ival;
905 /* FALLTHROUGH */
906 #endif
907 case KDSETLED: /* set keyboard LED */
908 /* NOTE: lock key state in ks_state won't be changed */
909 if (*(int *)arg & ~LOCK_MASK) {
910 splx(s);
911 return EINVAL;
912 }
913 i = *(int *)arg;
914 /* replace CAPS LED with ALTGR LED for ALTGR keyboards */
915 if (state->ks_mode == K_XLATE &&
916 kbd->kb_keymap->n_keys > ALTGR_OFFSET) {
917 if (i & ALKED)
918 i |= CLKED;
919 else
920 i &= ~CLKED;
921 }
922 if (KBD_HAS_DEVICE(kbd)) {
923 error = write_kbd(state->kbdc, KBDC_SET_LEDS,
924 ledmap[i & LED_MASK]);
925 if (error) {
926 splx(s);
927 return error;
928 }
929 }
930 KBD_LED_VAL(kbd) = *(int *)arg;
931 break;
932
933 case KDGKBSTATE: /* get lock key state */
934 *(int *)arg = state->ks_state & LOCK_MASK;
935 break;
936 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
937 defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
938 case _IO('K', 20):
939 ival = IOCPARM_IVAL(arg);
940 arg = (caddr_t)&ival;
941 /* FALLTHROUGH */
942 #endif
943 case KDSKBSTATE: /* set lock key state */
944 if (*(int *)arg & ~LOCK_MASK) {
945 splx(s);
946 return EINVAL;
947 }
948 state->ks_state &= ~LOCK_MASK;
949 state->ks_state |= *(int *)arg;
950 splx(s);
951 /* set LEDs and quit */
952 return atkbd_ioctl(kbd, KDSETLED, arg);
953
954 case KDSETREPEAT: /* set keyboard repeat rate (new interface) */
955 splx(s);
956 if (!KBD_HAS_DEVICE(kbd))
957 return 0;
958 i = typematic(((int *)arg)[0], ((int *)arg)[1]);
959 error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, i);
960 if (error == 0) {
961 kbd->kb_delay1 = typematic_delay(i);
962 kbd->kb_delay2 = typematic_rate(i);
963 }
964 return error;
965
966 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
967 defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
968 case _IO('K', 67):
969 ival = IOCPARM_IVAL(arg);
970 arg = (caddr_t)&ival;
971 /* FALLTHROUGH */
972 #endif
973 case KDSETRAD: /* set keyboard repeat rate (old interface) */
974 splx(s);
975 if (!KBD_HAS_DEVICE(kbd))
976 return 0;
977 error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, *(int *)arg);
978 if (error == 0) {
979 kbd->kb_delay1 = typematic_delay(*(int *)arg);
980 kbd->kb_delay2 = typematic_rate(*(int *)arg);
981 }
982 return error;
983
984 case PIO_KEYMAP: /* set keyboard translation table */
985 case PIO_KEYMAPENT: /* set keyboard translation table entry */
986 case PIO_DEADKEYMAP: /* set accent key translation table */
987 state->ks_accents = 0;
988 /* FALLTHROUGH */
989 default:
990 splx(s);
991 return genkbd_commonioctl(kbd, cmd, arg);
992 }
993
994 splx(s);
995 return 0;
996 }
997
998 /* lock the access to the keyboard */
999 static int
1000 atkbd_lock(keyboard_t *kbd, int lock)
1001 {
1002 return kbdc_lock(((atkbd_state_t *)kbd->kb_data)->kbdc, lock);
1003 }
1004
1005 /* clear the internal state of the keyboard */
1006 static void
1007 atkbd_clear_state(keyboard_t *kbd)
1008 {
1009 atkbd_state_t *state;
1010
1011 state = (atkbd_state_t *)kbd->kb_data;
1012 state->ks_flags = 0;
1013 state->ks_polling = 0;
1014 state->ks_state &= LOCK_MASK; /* preserve locking key state */
1015 state->ks_accents = 0;
1016 state->ks_composed_char = 0;
1017 #if 0
1018 state->ks_prefix = 0; /* XXX */
1019 #endif
1020 }
1021
1022 /* save the internal state */
1023 static int
1024 atkbd_get_state(keyboard_t *kbd, void *buf, size_t len)
1025 {
1026 if (len == 0)
1027 return sizeof(atkbd_state_t);
1028 if (len < sizeof(atkbd_state_t))
1029 return -1;
1030 bcopy(kbd->kb_data, buf, sizeof(atkbd_state_t));
1031 return 0;
1032 }
1033
1034 /* set the internal state */
1035 static int
1036 atkbd_set_state(keyboard_t *kbd, void *buf, size_t len)
1037 {
1038 if (len < sizeof(atkbd_state_t))
1039 return ENOMEM;
1040 if (((atkbd_state_t *)kbd->kb_data)->kbdc
1041 != ((atkbd_state_t *)buf)->kbdc)
1042 return ENOMEM;
1043 bcopy(buf, kbd->kb_data, sizeof(atkbd_state_t));
1044 return 0;
1045 }
1046
1047 static int
1048 atkbd_poll(keyboard_t *kbd, int on)
1049 {
1050 atkbd_state_t *state;
1051 int s;
1052
1053 state = (atkbd_state_t *)kbd->kb_data;
1054 s = spltty();
1055 if (on)
1056 ++state->ks_polling;
1057 else
1058 --state->ks_polling;
1059 splx(s);
1060 return 0;
1061 }
1062
1063 static void
1064 atkbd_shutdown_final(void *v)
1065 {
1066 #ifdef __sparc64__
1067 keyboard_t *kbd = v;
1068 KBDC kbdc = ((atkbd_state_t *)kbd->kb_data)->kbdc;
1069
1070 /*
1071 * Turn off the translation in preparation for handing the keyboard
1072 * over to the OFW as the OBP driver doesn't use translation and
1073 * also doesn't disable it itself resulting in a broken keymap at
1074 * the boot prompt. Also disable the aux port and the interrupts as
1075 * the OBP driver doesn't use them, i.e. polls the keyboard. Not
1076 * disabling the interrupts doesn't cause real problems but the
1077 * responsiveness is a bit better when they are turned off.
1078 */
1079 send_kbd_command(kbdc, KBDC_DISABLE_KBD);
1080 set_controller_command_byte(kbdc,
1081 KBD_AUX_CONTROL_BITS | KBD_KBD_CONTROL_BITS | KBD_TRANSLATION,
1082 KBD_DISABLE_AUX_PORT | KBD_DISABLE_KBD_INT | KBD_ENABLE_KBD_PORT);
1083 send_kbd_command(kbdc, KBDC_ENABLE_KBD);
1084 #endif
1085 }
1086
1087 /* local functions */
1088
1089 static int
1090 get_typematic(keyboard_t *kbd)
1091 {
1092 #if defined(__i386__) || defined(__amd64__)
1093 /*
1094 * Only some systems allow us to retrieve the keyboard repeat
1095 * rate previously set via the BIOS...
1096 */
1097 x86regs_t regs;
1098 uint8_t *p;
1099
1100 if (x86bios_get_intr(0x15) == 0 || x86bios_get_intr(0x16) == 0)
1101 return (ENODEV);
1102
1103 /* Is BIOS system configuration table supported? */
1104 x86bios_init_regs(®s);
1105 regs.R_AH = 0xc0;
1106 x86bios_intr(®s, 0x15);
1107 if ((regs.R_FLG & PSL_C) != 0 || regs.R_AH != 0)
1108 return (ENODEV);
1109
1110 /* Is int 0x16, function 0x09 supported? */
1111 p = x86bios_offset((regs.R_ES << 4) + regs.R_BX);
1112 if (readw(p) < 5 || (readb(p + 6) & 0x40) == 0)
1113 return (ENODEV);
1114
1115 /* Is int 0x16, function 0x0306 supported? */
1116 x86bios_init_regs(®s);
1117 regs.R_AH = 0x09;
1118 x86bios_intr(®s, 0x16);
1119 if ((regs.R_AL & 0x08) == 0)
1120 return (ENODEV);
1121
1122 x86bios_init_regs(®s);
1123 regs.R_AX = 0x0306;
1124 x86bios_intr(®s, 0x16);
1125 kbd->kb_delay1 = typematic_delay(regs.R_BH << 5);
1126 kbd->kb_delay2 = typematic_rate(regs.R_BL);
1127 return (0);
1128 #else
1129 return (ENODEV);
1130 #endif /* __i386__ || __amd64__ */
1131 }
1132
1133 static int
1134 setup_kbd_port(KBDC kbdc, int port, int intr)
1135 {
1136 if (!set_controller_command_byte(kbdc,
1137 KBD_KBD_CONTROL_BITS,
1138 ((port) ? KBD_ENABLE_KBD_PORT : KBD_DISABLE_KBD_PORT)
1139 | ((intr) ? KBD_ENABLE_KBD_INT : KBD_DISABLE_KBD_INT)))
1140 return 1;
1141 return 0;
1142 }
1143
1144 static int
1145 get_kbd_echo(KBDC kbdc)
1146 {
1147 /* enable the keyboard port, but disable the keyboard intr. */
1148 if (setup_kbd_port(kbdc, TRUE, FALSE))
1149 /* CONTROLLER ERROR: there is very little we can do... */
1150 return ENXIO;
1151
1152 /* see if something is present */
1153 write_kbd_command(kbdc, KBDC_ECHO);
1154 if (read_kbd_data(kbdc) != KBD_ECHO) {
1155 empty_both_buffers(kbdc, 10);
1156 test_controller(kbdc);
1157 test_kbd_port(kbdc);
1158 return ENXIO;
1159 }
1160
1161 /* enable the keyboard port and intr. */
1162 if (setup_kbd_port(kbdc, TRUE, TRUE)) {
1163 /*
1164 * CONTROLLER ERROR
1165 * This is serious; the keyboard intr is left disabled!
1166 */
1167 return ENXIO;
1168 }
1169
1170 return 0;
1171 }
1172
1173 static int
1174 probe_keyboard(KBDC kbdc, int flags)
1175 {
1176 /*
1177 * Don't try to print anything in this function. The low-level
1178 * console may not have been initialized yet...
1179 */
1180 int err;
1181 int c;
1182 int m;
1183
1184 if (!kbdc_lock(kbdc, TRUE)) {
1185 /* driver error? */
1186 return ENXIO;
1187 }
1188
1189 /* temporarily block data transmission from the keyboard */
1190 write_controller_command(kbdc, KBDC_DISABLE_KBD_PORT);
1191
1192 /* flush any noise in the buffer */
1193 empty_both_buffers(kbdc, 100);
1194
1195 /* save the current keyboard controller command byte */
1196 m = kbdc_get_device_mask(kbdc) & ~KBD_KBD_CONTROL_BITS;
1197 c = get_controller_command_byte(kbdc);
1198 if (c == -1) {
1199 /* CONTROLLER ERROR */
1200 kbdc_set_device_mask(kbdc, m);
1201 kbdc_lock(kbdc, FALSE);
1202 return ENXIO;
1203 }
1204
1205 /*
1206 * The keyboard may have been screwed up by the boot block.
1207 * We may just be able to recover from error by testing the controller
1208 * and the keyboard port. The controller command byte needs to be
1209 * saved before this recovery operation, as some controllers seem
1210 * to set the command byte to particular values.
1211 */
1212 test_controller(kbdc);
1213 if (!(flags & KB_CONF_NO_PROBE_TEST))
1214 test_kbd_port(kbdc);
1215
1216 err = get_kbd_echo(kbdc);
1217
1218 /*
1219 * Even if the keyboard doesn't seem to be present (err != 0),
1220 * we shall enable the keyboard port and interrupt so that
1221 * the driver will be operable when the keyboard is attached
1222 * to the system later. It is NOT recommended to hot-plug
1223 * the AT keyboard, but many people do so...
1224 */
1225 kbdc_set_device_mask(kbdc, m | KBD_KBD_CONTROL_BITS);
1226 setup_kbd_port(kbdc, TRUE, TRUE);
1227 #if 0
1228 if (err == 0) {
1229 kbdc_set_device_mask(kbdc, m | KBD_KBD_CONTROL_BITS);
1230 } else {
1231 /* try to restore the command byte as before */
1232 set_controller_command_byte(kbdc, 0xff, c);
1233 kbdc_set_device_mask(kbdc, m);
1234 }
1235 #endif
1236
1237 kbdc_lock(kbdc, FALSE);
1238 return err;
1239 }
1240
1241 static int
1242 init_keyboard(KBDC kbdc, int *type, int flags)
1243 {
1244 int codeset;
1245 int id;
1246 int c;
1247
1248 if (!kbdc_lock(kbdc, TRUE)) {
1249 /* driver error? */
1250 return EIO;
1251 }
1252
1253 /* temporarily block data transmission from the keyboard */
1254 write_controller_command(kbdc, KBDC_DISABLE_KBD_PORT);
1255
1256 /* save the current controller command byte */
1257 empty_both_buffers(kbdc, 200);
1258 c = get_controller_command_byte(kbdc);
1259 if (c == -1) {
1260 /* CONTROLLER ERROR */
1261 kbdc_lock(kbdc, FALSE);
1262 printf("atkbd: unable to get the current command byte value.\n");
1263 return EIO;
1264 }
1265 if (bootverbose)
1266 printf("atkbd: the current kbd controller command byte %04x\n",
1267 c);
1268 #if 0
1269 /* override the keyboard lock switch */
1270 c |= KBD_OVERRIDE_KBD_LOCK;
1271 #endif
1272
1273 /* enable the keyboard port, but disable the keyboard intr. */
1274 if (setup_kbd_port(kbdc, TRUE, FALSE)) {
1275 /* CONTROLLER ERROR: there is very little we can do... */
1276 printf("atkbd: unable to set the command byte.\n");
1277 kbdc_lock(kbdc, FALSE);
1278 return EIO;
1279 }
1280
1281 /*
1282 * Check if we have an XT keyboard before we attempt to reset it.
1283 * The procedure assumes that the keyboard and the controller have
1284 * been set up properly by BIOS and have not been messed up
1285 * during the boot process.
1286 */
1287 codeset = -1;
1288 if (flags & KB_CONF_ALT_SCANCODESET)
1289 /* the user says there is a XT keyboard */
1290 codeset = 1;
1291 #ifdef KBD_DETECT_XT_KEYBOARD
1292 else if ((c & KBD_TRANSLATION) == 0) {
1293 /* SET_SCANCODE_SET is not always supported; ignore error */
1294 if (send_kbd_command_and_data(kbdc, KBDC_SET_SCANCODE_SET, 0)
1295 == KBD_ACK)
1296 codeset = read_kbd_data(kbdc);
1297 }
1298 if (bootverbose)
1299 printf("atkbd: scancode set %d\n", codeset);
1300 #endif /* KBD_DETECT_XT_KEYBOARD */
1301
1302 *type = KB_OTHER;
1303 id = get_kbd_id(kbdc);
1304 switch(id) {
1305 case 0x41ab: /* 101/102/... Enhanced */
1306 case 0x83ab: /* ditto */
1307 case 0x54ab: /* SpaceSaver */
1308 case 0x84ab: /* ditto */
1309 #if 0
1310 case 0x90ab: /* 'G' */
1311 case 0x91ab: /* 'P' */
1312 case 0x92ab: /* 'A' */
1313 #endif
1314 *type = KB_101;
1315 break;
1316 case -1: /* AT 84 keyboard doesn't return ID */
1317 *type = KB_84;
1318 break;
1319 default:
1320 break;
1321 }
1322 if (bootverbose)
1323 printf("atkbd: keyboard ID 0x%x (%d)\n", id, *type);
1324
1325 /* reset keyboard hardware */
1326 if (!(flags & KB_CONF_NO_RESET) && !reset_kbd(kbdc)) {
1327 /*
1328 * KEYBOARD ERROR
1329 * Keyboard reset may fail either because the keyboard
1330 * doen't exist, or because the keyboard doesn't pass
1331 * the self-test, or the keyboard controller on the
1332 * motherboard and the keyboard somehow fail to shake hands.
1333 * It is just possible, particularly in the last case,
1334 * that the keyboard controller may be left in a hung state.
1335 * test_controller() and test_kbd_port() appear to bring
1336 * the keyboard controller back (I don't know why and how,
1337 * though.)
1338 */
1339 empty_both_buffers(kbdc, 10);
1340 test_controller(kbdc);
1341 test_kbd_port(kbdc);
1342 /*
1343 * We could disable the keyboard port and interrupt... but,
1344 * the keyboard may still exist (see above).
1345 */
1346 set_controller_command_byte(kbdc, 0xff, c);
1347 kbdc_lock(kbdc, FALSE);
1348 if (bootverbose)
1349 printf("atkbd: failed to reset the keyboard.\n");
1350 return EIO;
1351 }
1352
1353 /*
1354 * Allow us to set the XT_KEYBD flag so that keyboards
1355 * such as those on the IBM ThinkPad laptop computers can be used
1356 * with the standard console driver.
1357 */
1358 if (codeset == 1) {
1359 if (send_kbd_command_and_data(kbdc,
1360 KBDC_SET_SCANCODE_SET, codeset) == KBD_ACK) {
1361 /* XT kbd doesn't need scan code translation */
1362 c &= ~KBD_TRANSLATION;
1363 } else {
1364 /*
1365 * KEYBOARD ERROR
1366 * The XT kbd isn't usable unless the proper scan
1367 * code set is selected.
1368 */
1369 set_controller_command_byte(kbdc, 0xff, c);
1370 kbdc_lock(kbdc, FALSE);
1371 printf("atkbd: unable to set the XT keyboard mode.\n");
1372 return EIO;
1373 }
1374 }
1375
1376 #if defined(__sparc64__)
1377 if (send_kbd_command_and_data(
1378 kbdc, KBDC_SET_SCANCODE_SET, 2) != KBD_ACK) {
1379 printf("atkbd: can't set translation.\n");
1380 }
1381 c |= KBD_TRANSLATION;
1382 #endif
1383
1384 /* enable the keyboard port and intr. */
1385 if (!set_controller_command_byte(kbdc,
1386 KBD_KBD_CONTROL_BITS | KBD_TRANSLATION | KBD_OVERRIDE_KBD_LOCK,
1387 (c & (KBD_TRANSLATION | KBD_OVERRIDE_KBD_LOCK))
1388 | KBD_ENABLE_KBD_PORT | KBD_ENABLE_KBD_INT)) {
1389 /*
1390 * CONTROLLER ERROR
1391 * This is serious; we are left with the disabled
1392 * keyboard intr.
1393 */
1394 set_controller_command_byte(kbdc, 0xff, c);
1395 kbdc_lock(kbdc, FALSE);
1396 printf("atkbd: unable to enable the keyboard port and intr.\n");
1397 return EIO;
1398 }
1399
1400 kbdc_lock(kbdc, FALSE);
1401 return 0;
1402 }
1403
1404 static int
1405 write_kbd(KBDC kbdc, int command, int data)
1406 {
1407 int s;
1408
1409 /* prevent the timeout routine from polling the keyboard */
1410 if (!kbdc_lock(kbdc, TRUE))
1411 return EBUSY;
1412
1413 /* disable the keyboard and mouse interrupt */
1414 s = spltty();
1415 #if 0
1416 c = get_controller_command_byte(kbdc);
1417 if ((c == -1)
1418 || !set_controller_command_byte(kbdc,
1419 kbdc_get_device_mask(kbdc),
1420 KBD_DISABLE_KBD_PORT | KBD_DISABLE_KBD_INT
1421 | KBD_DISABLE_AUX_PORT | KBD_DISABLE_AUX_INT)) {
1422 /* CONTROLLER ERROR */
1423 kbdc_lock(kbdc, FALSE);
1424 splx(s);
1425 return EIO;
1426 }
1427 /*
1428 * Now that the keyboard controller is told not to generate
1429 * the keyboard and mouse interrupts, call `splx()' to allow
1430 * the other tty interrupts. The clock interrupt may also occur,
1431 * but the timeout routine (`scrn_timer()') will be blocked
1432 * by the lock flag set via `kbdc_lock()'
1433 */
1434 splx(s);
1435 #endif
1436
1437 if (send_kbd_command_and_data(kbdc, command, data) != KBD_ACK)
1438 send_kbd_command(kbdc, KBDC_ENABLE_KBD);
1439
1440 #if 0
1441 /* restore the interrupts */
1442 if (!set_controller_command_byte(kbdc,
1443 kbdc_get_device_mask(kbdc),
1444 c & (KBD_KBD_CONTROL_BITS | KBD_AUX_CONTROL_BITS))) {
1445 /* CONTROLLER ERROR */
1446 }
1447 #else
1448 splx(s);
1449 #endif
1450 kbdc_lock(kbdc, FALSE);
1451
1452 return 0;
1453 }
1454
1455 static int
1456 get_kbd_id(KBDC kbdc)
1457 {
1458 int id1, id2;
1459
1460 empty_both_buffers(kbdc, 10);
1461 id1 = id2 = -1;
1462 if (send_kbd_command(kbdc, KBDC_SEND_DEV_ID) != KBD_ACK)
1463 return -1;
1464
1465 DELAY(10000); /* 10 msec delay */
1466 id1 = read_kbd_data(kbdc);
1467 if (id1 != -1)
1468 id2 = read_kbd_data(kbdc);
1469
1470 if ((id1 == -1) || (id2 == -1)) {
1471 empty_both_buffers(kbdc, 10);
1472 test_controller(kbdc);
1473 test_kbd_port(kbdc);
1474 return -1;
1475 }
1476 return ((id2 << 8) | id1);
1477 }
1478
1479 static int delays[] = { 250, 500, 750, 1000 };
1480 static int rates[] = { 34, 38, 42, 46, 50, 55, 59, 63,
1481 68, 76, 84, 92, 100, 110, 118, 126,
1482 136, 152, 168, 184, 200, 220, 236, 252,
1483 272, 304, 336, 368, 400, 440, 472, 504 };
1484
1485 static int
1486 typematic_delay(int i)
1487 {
1488 return delays[(i >> 5) & 3];
1489 }
1490
1491 static int
1492 typematic_rate(int i)
1493 {
1494 return rates[i & 0x1f];
1495 }
1496
1497 static int
1498 typematic(int delay, int rate)
1499 {
1500 int value;
1501 int i;
1502
1503 for (i = sizeof(delays)/sizeof(delays[0]) - 1; i > 0; --i) {
1504 if (delay >= delays[i])
1505 break;
1506 }
1507 value = i << 5;
1508 for (i = sizeof(rates)/sizeof(rates[0]) - 1; i > 0; --i) {
1509 if (rate >= rates[i])
1510 break;
1511 }
1512 value |= i;
1513 return value;
1514 }
Cache object: f18c4632d2168aec2640aecbb818b795
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