1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2012 Oleksandr Tymoshenko <[email protected]>
5 * All rights reserved.
6 *
7 * Based on dev/usb/input/ukbd.c
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 */
30
31 #include <sys/cdefs.h>
32 __FBSDID("$FreeBSD$");
33
34 #include <sys/param.h>
35 #include <sys/systm.h>
36 #include <sys/bus.h>
37 #include <sys/kernel.h>
38 #include <sys/lock.h>
39 #include <sys/module.h>
40 #include <sys/malloc.h>
41 #include <sys/mutex.h>
42 #include <sys/rman.h>
43 #include <sys/proc.h>
44 #include <sys/sched.h>
45 #include <sys/kdb.h>
46
47 #include <machine/bus.h>
48 #include <machine/cpu.h>
49 #include <machine/intr.h>
50
51 #include <dev/ofw/openfirm.h>
52 #include <dev/ofw/ofw_bus.h>
53 #include <dev/ofw/ofw_bus_subr.h>
54
55 #include <sys/ioccom.h>
56 #include <sys/filio.h>
57 #include <sys/kbio.h>
58
59 #include <dev/kbd/kbdreg.h>
60
61 #include <machine/bus.h>
62
63 #include <dev/kbd/kbdtables.h>
64
65 #define KMI_LOCK() mtx_lock(&Giant)
66 #define KMI_UNLOCK() mtx_unlock(&Giant)
67
68 #ifdef INVARIANTS
69 /*
70 * Assert that the lock is held in all contexts
71 * where the code can be executed.
72 */
73 #define KMI_LOCK_ASSERT() mtx_assert(&Giant, MA_OWNED)
74 /*
75 * Assert that the lock is held in the contexts
76 * where it really has to be so.
77 */
78 #define KMI_CTX_LOCK_ASSERT() \
79 do { \
80 if (!kdb_active && !KERNEL_PANICKED()) \
81 mtx_assert(&Giant, MA_OWNED); \
82 } while (0)
83 #else
84 #define KMI_LOCK_ASSERT() (void)0
85 #define KMI_CTX_LOCK_ASSERT() (void)0
86 #endif
87
88 #define KMICR 0x00
89 #define KMICR_TYPE_NONPS2 (1 << 5)
90 #define KMICR_RXINTREN (1 << 4)
91 #define KMICR_TXINTREN (1 << 3)
92 #define KMICR_EN (1 << 2)
93 #define KMICR_FKMID (1 << 1)
94 #define KMICR_FKMIC (1 << 0)
95 #define KMISTAT 0x04
96 #define KMISTAT_TXEMPTY (1 << 6)
97 #define KMISTAT_TXBUSY (1 << 5)
98 #define KMISTAT_RXFULL (1 << 4)
99 #define KMISTAT_RXBUSY (1 << 3)
100 #define KMISTAT_RXPARITY (1 << 2)
101 #define KMISTAT_KMIC (1 << 1)
102 #define KMISTAT_KMID (1 << 0)
103 #define KMIDATA 0x08
104 #define KMICLKDIV 0x0C
105 #define KMIIR 0x10
106 #define KMIIR_TXINTR (1 << 1)
107 #define KMIIR_RXINTR (1 << 0)
108
109 #define KMI_DRIVER_NAME "kmi"
110 #define KMI_NFKEY (sizeof(fkey_tab)/sizeof(fkey_tab[0])) /* units */
111
112 #define SET_SCANCODE_SET 0xf0
113
114 struct kmi_softc {
115 device_t sc_dev;
116 keyboard_t sc_kbd;
117 keymap_t sc_keymap;
118 accentmap_t sc_accmap;
119 fkeytab_t sc_fkeymap[KMI_NFKEY];
120
121 struct resource* sc_mem_res;
122 struct resource* sc_irq_res;
123 void* sc_intr_hl;
124
125 int sc_mode; /* input mode (K_XLATE,K_RAW,K_CODE) */
126 int sc_state; /* shift/lock key state */
127 int sc_accents; /* accent key index (> 0) */
128 uint32_t sc_flags; /* flags */
129 #define KMI_FLAG_COMPOSE 0x00000001
130 #define KMI_FLAG_POLLING 0x00000002
131
132 struct thread *sc_poll_thread;
133 };
134
135 /* Read/Write macros for Timer used as timecounter */
136 #define pl050_kmi_read_4(sc, reg) \
137 bus_read_4((sc)->sc_mem_res, (reg))
138
139 #define pl050_kmi_write_4(sc, reg, val) \
140 bus_write_4((sc)->sc_mem_res, (reg), (val))
141
142 /* prototypes */
143 static void kmi_set_leds(struct kmi_softc *, uint8_t);
144 static int kmi_set_typematic(keyboard_t *, int);
145 static uint32_t kmi_read_char(keyboard_t *, int);
146 static void kmi_clear_state(keyboard_t *);
147 static int kmi_ioctl(keyboard_t *, u_long, caddr_t);
148 static int kmi_enable(keyboard_t *);
149 static int kmi_disable(keyboard_t *);
150
151 static int kmi_attached = 0;
152
153 /* early keyboard probe, not supported */
154 static int
kmi_configure(int flags)155 kmi_configure(int flags)
156 {
157 return (0);
158 }
159
160 /* detect a keyboard, not used */
161 static int
kmi_probe(int unit,void * arg,int flags)162 kmi_probe(int unit, void *arg, int flags)
163 {
164 return (ENXIO);
165 }
166
167 /* reset and initialize the device, not used */
168 static int
kmi_init(int unit,keyboard_t ** kbdp,void * arg,int flags)169 kmi_init(int unit, keyboard_t **kbdp, void *arg, int flags)
170 {
171 return (ENXIO);
172 }
173
174 /* test the interface to the device, not used */
175 static int
kmi_test_if(keyboard_t * kbd)176 kmi_test_if(keyboard_t *kbd)
177 {
178 return (0);
179 }
180
181 /* finish using this keyboard, not used */
182 static int
kmi_term(keyboard_t * kbd)183 kmi_term(keyboard_t *kbd)
184 {
185 return (ENXIO);
186 }
187
188 /* keyboard interrupt routine, not used */
189 static int
kmi_intr(keyboard_t * kbd,void * arg)190 kmi_intr(keyboard_t *kbd, void *arg)
191 {
192
193 return (0);
194 }
195
196 /* lock the access to the keyboard, not used */
197 static int
kmi_lock(keyboard_t * kbd,int lock)198 kmi_lock(keyboard_t *kbd, int lock)
199 {
200 return (1);
201 }
202
203 /*
204 * Enable the access to the device; until this function is called,
205 * the client cannot read from the keyboard.
206 */
207 static int
kmi_enable(keyboard_t * kbd)208 kmi_enable(keyboard_t *kbd)
209 {
210
211 KMI_LOCK();
212 KBD_ACTIVATE(kbd);
213 KMI_UNLOCK();
214
215 return (0);
216 }
217
218 /* disallow the access to the device */
219 static int
kmi_disable(keyboard_t * kbd)220 kmi_disable(keyboard_t *kbd)
221 {
222
223 KMI_LOCK();
224 KBD_DEACTIVATE(kbd);
225 KMI_UNLOCK();
226
227 return (0);
228 }
229
230 /* check if data is waiting */
231 static int
kmi_check(keyboard_t * kbd)232 kmi_check(keyboard_t *kbd)
233 {
234 struct kmi_softc *sc = kbd->kb_data;
235 uint32_t reg;
236
237 KMI_CTX_LOCK_ASSERT();
238
239 if (!KBD_IS_ACTIVE(kbd))
240 return (0);
241
242 reg = pl050_kmi_read_4(sc, KMIIR);
243 return (reg & KMIIR_RXINTR);
244 }
245
246 /* check if char is waiting */
247 static int
kmi_check_char_locked(keyboard_t * kbd)248 kmi_check_char_locked(keyboard_t *kbd)
249 {
250 KMI_CTX_LOCK_ASSERT();
251
252 if (!KBD_IS_ACTIVE(kbd))
253 return (0);
254
255 return (kmi_check(kbd));
256 }
257
258 static int
kmi_check_char(keyboard_t * kbd)259 kmi_check_char(keyboard_t *kbd)
260 {
261 int result;
262
263 KMI_LOCK();
264 result = kmi_check_char_locked(kbd);
265 KMI_UNLOCK();
266
267 return (result);
268 }
269
270 /* read one byte from the keyboard if it's allowed */
271 /* Currently unused. */
272 static int
kmi_read(keyboard_t * kbd,int wait)273 kmi_read(keyboard_t *kbd, int wait)
274 {
275 KMI_CTX_LOCK_ASSERT();
276
277 if (!KBD_IS_ACTIVE(kbd))
278 return (-1);
279
280 ++(kbd->kb_count);
281 printf("Implement ME: %s\n", __func__);
282 return (0);
283 }
284
285 /* read char from the keyboard */
286 static uint32_t
kmi_read_char_locked(keyboard_t * kbd,int wait)287 kmi_read_char_locked(keyboard_t *kbd, int wait)
288 {
289 struct kmi_softc *sc = kbd->kb_data;
290 uint32_t reg, data;
291
292 KMI_CTX_LOCK_ASSERT();
293
294 if (!KBD_IS_ACTIVE(kbd))
295 return (NOKEY);
296
297 reg = pl050_kmi_read_4(sc, KMIIR);
298 if (reg & KMIIR_RXINTR) {
299 data = pl050_kmi_read_4(sc, KMIDATA);
300 return (data);
301 }
302
303 ++kbd->kb_count;
304 return (NOKEY);
305 }
306
307 /* Currently wait is always false. */
308 static uint32_t
kmi_read_char(keyboard_t * kbd,int wait)309 kmi_read_char(keyboard_t *kbd, int wait)
310 {
311 uint32_t keycode;
312
313 KMI_LOCK();
314 keycode = kmi_read_char_locked(kbd, wait);
315 KMI_UNLOCK();
316
317 return (keycode);
318 }
319
320 /* some useful control functions */
321 static int
kmi_ioctl_locked(keyboard_t * kbd,u_long cmd,caddr_t arg)322 kmi_ioctl_locked(keyboard_t *kbd, u_long cmd, caddr_t arg)
323 {
324 struct kmi_softc *sc = kbd->kb_data;
325 int i;
326 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
327 defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
328 int ival;
329
330 #endif
331
332 KMI_LOCK_ASSERT();
333
334 switch (cmd) {
335 case KDGKBMODE: /* get keyboard mode */
336 *(int *)arg = sc->sc_mode;
337 break;
338 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
339 defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
340 case _IO('K', 7):
341 ival = IOCPARM_IVAL(arg);
342 arg = (caddr_t)&ival;
343 /* FALLTHROUGH */
344 #endif
345 case KDSKBMODE: /* set keyboard mode */
346 switch (*(int *)arg) {
347 case K_XLATE:
348 if (sc->sc_mode != K_XLATE) {
349 /* make lock key state and LED state match */
350 sc->sc_state &= ~LOCK_MASK;
351 sc->sc_state |= KBD_LED_VAL(kbd);
352 }
353 /* FALLTHROUGH */
354 case K_RAW:
355 case K_CODE:
356 if (sc->sc_mode != *(int *)arg) {
357 if ((sc->sc_flags & KMI_FLAG_POLLING) == 0)
358 kmi_clear_state(kbd);
359 sc->sc_mode = *(int *)arg;
360 }
361 break;
362 default:
363 return (EINVAL);
364 }
365 break;
366
367 case KDGETLED: /* get keyboard LED */
368 *(int *)arg = KBD_LED_VAL(kbd);
369 break;
370 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
371 defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
372 case _IO('K', 66):
373 ival = IOCPARM_IVAL(arg);
374 arg = (caddr_t)&ival;
375 /* FALLTHROUGH */
376 #endif
377 case KDSETLED: /* set keyboard LED */
378 /* NOTE: lock key state in "sc_state" won't be changed */
379 if (*(int *)arg & ~LOCK_MASK)
380 return (EINVAL);
381
382 i = *(int *)arg;
383
384 /* replace CAPS LED with ALTGR LED for ALTGR keyboards */
385 if (sc->sc_mode == K_XLATE &&
386 kbd->kb_keymap->n_keys > ALTGR_OFFSET) {
387 if (i & ALKED)
388 i |= CLKED;
389 else
390 i &= ~CLKED;
391 }
392 if (KBD_HAS_DEVICE(kbd))
393 kmi_set_leds(sc, i);
394
395 KBD_LED_VAL(kbd) = *(int *)arg;
396 break;
397 case KDGKBSTATE: /* get lock key state */
398 *(int *)arg = sc->sc_state & LOCK_MASK;
399 break;
400 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
401 defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
402 case _IO('K', 20):
403 ival = IOCPARM_IVAL(arg);
404 arg = (caddr_t)&ival;
405 /* FALLTHROUGH */
406 #endif
407 case KDSKBSTATE: /* set lock key state */
408 if (*(int *)arg & ~LOCK_MASK) {
409 return (EINVAL);
410 }
411 sc->sc_state &= ~LOCK_MASK;
412 sc->sc_state |= *(int *)arg;
413
414 /* set LEDs and quit */
415 return (kmi_ioctl(kbd, KDSETLED, arg));
416
417 case KDSETREPEAT: /* set keyboard repeat rate (new
418 * interface) */
419 if (!KBD_HAS_DEVICE(kbd)) {
420 return (0);
421 }
422 if (((int *)arg)[1] < 0) {
423 return (EINVAL);
424 }
425 if (((int *)arg)[0] < 0) {
426 return (EINVAL);
427 }
428 if (((int *)arg)[0] < 200) /* fastest possible value */
429 kbd->kb_delay1 = 200;
430 else
431 kbd->kb_delay1 = ((int *)arg)[0];
432 kbd->kb_delay2 = ((int *)arg)[1];
433 return (0);
434
435 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
436 defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
437 case _IO('K', 67):
438 ival = IOCPARM_IVAL(arg);
439 arg = (caddr_t)&ival;
440 /* FALLTHROUGH */
441 #endif
442 case KDSETRAD: /* set keyboard repeat rate (old
443 * interface) */
444 return (kmi_set_typematic(kbd, *(int *)arg));
445
446 case PIO_KEYMAP: /* set keyboard translation table */
447 case OPIO_KEYMAP: /* set keyboard translation table
448 * (compat) */
449 case PIO_KEYMAPENT: /* set keyboard translation table
450 * entry */
451 case PIO_DEADKEYMAP: /* set accent key translation table */
452 sc->sc_accents = 0;
453 /* FALLTHROUGH */
454 default:
455 return (genkbd_commonioctl(kbd, cmd, arg));
456 }
457
458 return (0);
459 }
460
461 static int
kmi_ioctl(keyboard_t * kbd,u_long cmd,caddr_t arg)462 kmi_ioctl(keyboard_t *kbd, u_long cmd, caddr_t arg)
463 {
464 int result;
465
466 /*
467 * XXX KDGKBSTATE, KDSKBSTATE and KDSETLED can be called from any
468 * context where printf(9) can be called, which among other things
469 * includes interrupt filters and threads with any kinds of locks
470 * already held. For this reason it would be dangerous to acquire
471 * the Giant here unconditionally. On the other hand we have to
472 * have it to handle the ioctl.
473 * So we make our best effort to auto-detect whether we can grab
474 * the Giant or not. Blame syscons(4) for this.
475 */
476 switch (cmd) {
477 case KDGKBSTATE:
478 case KDSKBSTATE:
479 case KDSETLED:
480 if (!mtx_owned(&Giant) && !SCHEDULER_STOPPED())
481 return (EDEADLK); /* best I could come up with */
482 /* FALLTHROUGH */
483 default:
484 KMI_LOCK();
485 result = kmi_ioctl_locked(kbd, cmd, arg);
486 KMI_UNLOCK();
487 return (result);
488 }
489 }
490
491 /* clear the internal state of the keyboard */
492 static void
kmi_clear_state(keyboard_t * kbd)493 kmi_clear_state(keyboard_t *kbd)
494 {
495 struct kmi_softc *sc = kbd->kb_data;
496
497 KMI_CTX_LOCK_ASSERT();
498
499 sc->sc_flags &= ~(KMI_FLAG_COMPOSE | KMI_FLAG_POLLING);
500 sc->sc_state &= LOCK_MASK; /* preserve locking key state */
501 sc->sc_accents = 0;
502 }
503
504 /* save the internal state, not used */
505 static int
kmi_get_state(keyboard_t * kbd,void * buf,size_t len)506 kmi_get_state(keyboard_t *kbd, void *buf, size_t len)
507 {
508 return (len == 0) ? 1 : -1;
509 }
510
511 /* set the internal state, not used */
512 static int
kmi_set_state(keyboard_t * kbd,void * buf,size_t len)513 kmi_set_state(keyboard_t *kbd, void *buf, size_t len)
514 {
515 return (EINVAL);
516 }
517
518 static int
kmi_poll(keyboard_t * kbd,int on)519 kmi_poll(keyboard_t *kbd, int on)
520 {
521 struct kmi_softc *sc = kbd->kb_data;
522
523 KMI_LOCK();
524 if (on) {
525 sc->sc_flags |= KMI_FLAG_POLLING;
526 sc->sc_poll_thread = curthread;
527 } else {
528 sc->sc_flags &= ~KMI_FLAG_POLLING;
529 }
530 KMI_UNLOCK();
531
532 return (0);
533 }
534
535 /* local functions */
536
537 static void
kmi_set_leds(struct kmi_softc * sc,uint8_t leds)538 kmi_set_leds(struct kmi_softc *sc, uint8_t leds)
539 {
540
541 KMI_LOCK_ASSERT();
542
543 /* start transfer, if not already started */
544 printf("Implement me: %s\n", __func__);
545 }
546
547 static int
kmi_set_typematic(keyboard_t * kbd,int code)548 kmi_set_typematic(keyboard_t *kbd, int code)
549 {
550 static const int delays[] = {250, 500, 750, 1000};
551 static const int rates[] = {34, 38, 42, 46, 50, 55, 59, 63,
552 68, 76, 84, 92, 100, 110, 118, 126,
553 136, 152, 168, 184, 200, 220, 236, 252,
554 272, 304, 336, 368, 400, 440, 472, 504};
555
556 if (code & ~0x7f) {
557 return (EINVAL);
558 }
559 kbd->kb_delay1 = delays[(code >> 5) & 3];
560 kbd->kb_delay2 = rates[code & 0x1f];
561 return (0);
562 }
563
564 static keyboard_switch_t kmisw = {
565 .probe = &kmi_probe,
566 .init = &kmi_init,
567 .term = &kmi_term,
568 .intr = &kmi_intr,
569 .test_if = &kmi_test_if,
570 .enable = &kmi_enable,
571 .disable = &kmi_disable,
572 .read = &kmi_read,
573 .check = &kmi_check,
574 .read_char = &kmi_read_char,
575 .check_char = &kmi_check_char,
576 .ioctl = &kmi_ioctl,
577 .lock = &kmi_lock,
578 .clear_state = &kmi_clear_state,
579 .get_state = &kmi_get_state,
580 .set_state = &kmi_set_state,
581 .poll = &kmi_poll,
582 };
583
584 KEYBOARD_DRIVER(kmi, kmisw, kmi_configure);
585
586 static void
pl050_kmi_intr(void * arg)587 pl050_kmi_intr(void *arg)
588 {
589 struct kmi_softc *sc = arg;
590 uint32_t c;
591
592 KMI_CTX_LOCK_ASSERT();
593
594 if ((sc->sc_flags & KMI_FLAG_POLLING) != 0)
595 return;
596
597 if (KBD_IS_ACTIVE(&sc->sc_kbd) &&
598 KBD_IS_BUSY(&sc->sc_kbd)) {
599 /* let the callback function process the input */
600 (sc->sc_kbd.kb_callback.kc_func) (&sc->sc_kbd, KBDIO_KEYINPUT,
601 sc->sc_kbd.kb_callback.kc_arg);
602 } else {
603 /* read and discard the input, no one is waiting for it */
604 do {
605 c = kmi_read_char_locked(&sc->sc_kbd, 0);
606 } while (c != NOKEY);
607 }
608
609 }
610
611 static int
pl050_kmi_probe(device_t dev)612 pl050_kmi_probe(device_t dev)
613 {
614
615 if (!ofw_bus_status_okay(dev))
616 return (ENXIO);
617
618 /*
619 * PL050 is plain PS2 port that pushes bytes to/from computer
620 * VersatilePB has two such ports and QEMU simulates keyboard
621 * connected to port #0 and mouse connected to port #1. This
622 * information can't be obtained from device tree so we just
623 * hardcode this knowledge here. We attach keyboard driver to
624 * port #0 and ignore port #1
625 */
626 if (kmi_attached)
627 return (ENXIO);
628
629 if (ofw_bus_is_compatible(dev, "arm,pl050")) {
630 device_set_desc(dev, "PL050 Keyboard/Mouse Interface");
631 return (BUS_PROBE_DEFAULT);
632 }
633
634 return (ENXIO);
635 }
636
637 static int
pl050_kmi_attach(device_t dev)638 pl050_kmi_attach(device_t dev)
639 {
640 struct kmi_softc *sc = device_get_softc(dev);
641 keyboard_t *kbd;
642 int rid;
643 int i;
644 uint32_t ack;
645
646 sc->sc_dev = dev;
647 kbd = &sc->sc_kbd;
648 rid = 0;
649
650 sc->sc_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE);
651 if (sc->sc_mem_res == NULL) {
652 device_printf(dev, "could not allocate memory resource\n");
653 return (ENXIO);
654 }
655
656 /* Request the IRQ resources */
657 sc->sc_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE);
658 if (sc->sc_irq_res == NULL) {
659 device_printf(dev, "Error: could not allocate irq resources\n");
660 return (ENXIO);
661 }
662
663 /* Setup and enable the timer */
664 if (bus_setup_intr(dev, sc->sc_irq_res, INTR_TYPE_CLK,
665 NULL, pl050_kmi_intr, sc,
666 &sc->sc_intr_hl) != 0) {
667 bus_release_resource(dev, SYS_RES_IRQ, rid,
668 sc->sc_irq_res);
669 device_printf(dev, "Unable to setup the clock irq handler.\n");
670 return (ENXIO);
671 }
672
673 /* TODO: clock & divisor */
674
675 pl050_kmi_write_4(sc, KMICR, KMICR_EN);
676
677 pl050_kmi_write_4(sc, KMIDATA, SET_SCANCODE_SET);
678 /* read out ACK */
679 ack = pl050_kmi_read_4(sc, KMIDATA);
680 /* Set Scan Code set 1 (XT) */
681 pl050_kmi_write_4(sc, KMIDATA, 1);
682 /* read out ACK */
683 ack = pl050_kmi_read_4(sc, KMIDATA);
684
685 pl050_kmi_write_4(sc, KMICR, KMICR_EN | KMICR_RXINTREN);
686
687 kbd_init_struct(kbd, KMI_DRIVER_NAME, KB_OTHER,
688 device_get_unit(dev), 0, 0, 0);
689 kbd->kb_data = (void *)sc;
690
691 sc->sc_keymap = key_map;
692 sc->sc_accmap = accent_map;
693 for (i = 0; i < KMI_NFKEY; i++) {
694 sc->sc_fkeymap[i] = fkey_tab[i];
695 }
696
697 kbd_set_maps(kbd, &sc->sc_keymap, &sc->sc_accmap,
698 sc->sc_fkeymap, KMI_NFKEY);
699
700 KBD_FOUND_DEVICE(kbd);
701 kmi_clear_state(kbd);
702 KBD_PROBE_DONE(kbd);
703
704 KBD_INIT_DONE(kbd);
705
706 if (kbd_register(kbd) < 0) {
707 goto detach;
708 }
709 KBD_CONFIG_DONE(kbd);
710
711 #ifdef KBD_INSTALL_CDEV
712 if (kbd_attach(kbd)) {
713 goto detach;
714 }
715 #endif
716
717 if (bootverbose) {
718 kbdd_diag(kbd, bootverbose);
719 }
720 kmi_attached = 1;
721 return (0);
722
723 detach:
724 return (ENXIO);
725
726 }
727
728 static device_method_t pl050_kmi_methods[] = {
729 DEVMETHOD(device_probe, pl050_kmi_probe),
730 DEVMETHOD(device_attach, pl050_kmi_attach),
731 { 0, 0 }
732 };
733
734 static driver_t pl050_kmi_driver = {
735 "kmi",
736 pl050_kmi_methods,
737 sizeof(struct kmi_softc),
738 };
739
740 static devclass_t pl050_kmi_devclass;
741
742 DRIVER_MODULE(pl050_kmi, simplebus, pl050_kmi_driver, pl050_kmi_devclass, 0, 0);
743