adb_kbd.c revision 1.12 
1/*	$NetBSD: adb_kbd.c,v 1.12 2008/03/26 18:04:15 matt Exp $	*/
2
3/*
4 * Copyright (C) 1998	Colin Wood
5 * Copyright (C) 2006, 2007 Michael Lorenz
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 *    must display the following acknowledgement:
18 *	This product includes software developed by Colin Wood.
19 * 4. The name of the author may not be used to endorse or promote products
20 *    derived from this software without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 */
33
34#include <sys/cdefs.h>
35__KERNEL_RCSID(0, "$NetBSD: adb_kbd.c,v 1.12 2008/03/26 18:04:15 matt Exp $");
36
37#include <sys/param.h>
38#include <sys/device.h>
39#include <sys/fcntl.h>
40#include <sys/poll.h>
41#include <sys/select.h>
42#include <sys/proc.h>
43#include <sys/systm.h>
44#include <sys/kernel.h>
45#include <sys/sysctl.h>
46
47#include <dev/wscons/wsconsio.h>
48#include <dev/wscons/wskbdvar.h>
49#include <dev/wscons/wsksymdef.h>
50#include <dev/wscons/wsksymvar.h>
51#include <dev/wscons/wsmousevar.h>
52
53#include <dev/sysmon/sysmonvar.h>
54#include <dev/sysmon/sysmon_taskq.h>
55
56#include <machine/autoconf.h>
57#include <machine/keyboard.h>
58#include <machine/adbsys.h>
59
60#include <dev/adb/adbvar.h>
61#include <dev/adb/adb_keymap.h>
62
63#include "opt_wsdisplay_compat.h"
64#include "adbdebug.h"
65#include "wsmouse.h"
66
67struct adbkbd_softc {
68	device_t sc_dev;
69	struct adb_device *sc_adbdev;
70	struct adb_bus_accessops *sc_ops;
71	device_t sc_wskbddev;
72#if NWSMOUSE > 0
73	device_t sc_wsmousedev;
74#endif
75	struct sysmon_pswitch sc_sm_pbutton;
76	int sc_leds;
77	int sc_have_led_control;
78	int sc_msg_len;
79	int sc_event;
80	int sc_poll;
81	int sc_polled_chars;
82	int sc_trans[3];
83	int sc_capslock;
84	uint32_t sc_timestamp;
85#ifdef WSDISPLAY_COMPAT_RAWKBD
86	int sc_rawkbd;
87#endif
88	uint8_t sc_buffer[16];
89	uint8_t sc_pollbuf[16];
90	uint8_t sc_us;
91	uint8_t sc_power, sc_pe;
92};
93
94/*
95 * Function declarations.
96 */
97static int	adbkbd_match(device_t, cfdata_t, void *);
98static void	adbkbd_attach(device_t, device_t, void *);
99
100static void	adbkbd_initleds(struct adbkbd_softc *);
101static void	adbkbd_keys(struct adbkbd_softc *, uint8_t, uint8_t);
102static inline void adbkbd_key(struct adbkbd_softc *, uint8_t);
103static int	adbkbd_wait(struct adbkbd_softc *, int);
104
105/* Driver definition. */
106CFATTACH_DECL_NEW(adbkbd, sizeof(struct adbkbd_softc),
107    adbkbd_match, adbkbd_attach, NULL, NULL);
108
109extern struct cfdriver adbkbd_cd;
110
111static int adbkbd_enable(void *, int);
112static int adbkbd_ioctl(void *, u_long, void *, int, struct lwp *);
113static void adbkbd_set_leds(void *, int);
114static void adbkbd_handler(void *, int, uint8_t *);
115static void adbkbd_powerbutton(void *);
116
117struct wskbd_accessops adbkbd_accessops = {
118	adbkbd_enable,
119	adbkbd_set_leds,
120	adbkbd_ioctl,
121};
122
123static void adbkbd_cngetc(void *, u_int *, int *);
124static void adbkbd_cnpollc(void *, int);
125
126struct wskbd_consops adbkbd_consops = {
127	adbkbd_cngetc,
128	adbkbd_cnpollc,
129};
130
131struct wskbd_mapdata adbkbd_keymapdata = {
132	akbd_keydesctab,
133#ifdef AKBD_LAYOUT
134	AKBD_LAYOUT,
135#else
136	KB_US,
137#endif
138};
139
140#if NWSMOUSE > 0
141static int adbkms_enable(void *);
142static int adbkms_ioctl(void *, u_long, void *, int, struct lwp *);
143static void adbkms_disable(void *);
144
145const struct wsmouse_accessops adbkms_accessops = {
146	adbkms_enable,
147	adbkms_ioctl,
148	adbkms_disable,
149};
150
151static int  adbkbd_sysctl_button(SYSCTLFN_ARGS);
152static void adbkbd_setup_sysctl(struct adbkbd_softc *);
153
154#endif /* NWSMOUSE > 0 */
155
156#ifdef ADBKBD_DEBUG
157#define DPRINTF printf
158#else
159#define DPRINTF while (0) printf
160#endif
161
162static int adbkbd_is_console = 0;
163static int adbkbd_console_attached = 0;
164
165static int
166adbkbd_match(device_t parent, cfdata_t cf, void *aux)
167{
168	struct adb_attach_args *aaa = aux;
169
170	if (aaa->dev->original_addr == ADBADDR_KBD)
171		return 1;
172	else
173		return 0;
174}
175
176static void
177adbkbd_attach(device_t parent, device_t self, void *aux)
178{
179	struct adbkbd_softc *sc = device_private(self);
180	struct adb_attach_args *aaa = aux;
181	short cmd;
182	struct wskbddev_attach_args a;
183#if NWSMOUSE > 0
184	struct wsmousedev_attach_args am;
185#endif
186
187	sc->sc_dev = self;
188	sc->sc_ops = aaa->ops;
189	sc->sc_adbdev = aaa->dev;
190	sc->sc_adbdev->cookie = sc;
191	sc->sc_adbdev->handler = adbkbd_handler;
192	sc->sc_us = ADBTALK(sc->sc_adbdev->current_addr, 0);
193
194	sc->sc_leds = 0;	/* initially off */
195	sc->sc_have_led_control = 0;
196	sc->sc_msg_len = 0;
197	sc->sc_poll = 0;
198	sc->sc_capslock = 0;
199	sc->sc_trans[1] = 103;	/* F11 */
200	sc->sc_trans[2] = 111;	/* F12 */
201	sc->sc_power = 0x7f;
202	sc->sc_timestamp = 0;
203
204	printf(" addr %d: ", sc->sc_adbdev->current_addr);
205
206	switch (sc->sc_adbdev->handler_id) {
207	case ADB_STDKBD:
208		printf("standard keyboard\n");
209		break;
210	case ADB_ISOKBD:
211		printf("standard keyboard (ISO layout)\n");
212		break;
213	case ADB_EXTKBD:
214		cmd = ADBTALK(sc->sc_adbdev->current_addr, 1);
215		sc->sc_msg_len = 0;
216		sc->sc_ops->send(sc->sc_ops->cookie, sc->sc_poll, cmd, 0, NULL);
217		adbkbd_wait(sc, 10);
218
219		/* Ignore Logitech MouseMan/Trackman pseudo keyboard */
220		/* XXX needs testing */
221		if (sc->sc_buffer[2] == 0x9a && sc->sc_buffer[3] == 0x20) {
222			printf("Mouseman (non-EMP) pseudo keyboard\n");
223			return;
224		} else if (sc->sc_buffer[2] == 0x9a &&
225		    sc->sc_buffer[3] == 0x21) {
226			printf("Trackman (non-EMP) pseudo keyboard\n");
227			return;
228		} else {
229			printf("extended keyboard\n");
230			adbkbd_initleds(sc);
231		}
232		break;
233	case ADB_EXTISOKBD:
234		printf("extended keyboard (ISO layout)\n");
235		adbkbd_initleds(sc);
236		break;
237	case ADB_KBDII:
238		printf("keyboard II\n");
239		break;
240	case ADB_ISOKBDII:
241		printf("keyboard II (ISO layout)\n");
242		break;
243	case ADB_PBKBD:
244		printf("PowerBook keyboard\n");
245		sc->sc_power = 0x7e;
246		break;
247	case ADB_PBISOKBD:
248		printf("PowerBook keyboard (ISO layout)\n");
249		sc->sc_power = 0x7e;
250		break;
251	case ADB_ADJKPD:
252		printf("adjustable keypad\n");
253		break;
254	case ADB_ADJKBD:
255		printf("adjustable keyboard\n");
256		break;
257	case ADB_ADJISOKBD:
258		printf("adjustable keyboard (ISO layout)\n");
259		break;
260	case ADB_ADJJAPKBD:
261		printf("adjustable keyboard (Japanese layout)\n");
262		break;
263	case ADB_PBEXTISOKBD:
264		printf("PowerBook extended keyboard (ISO layout)\n");
265		sc->sc_power = 0x7e;
266		break;
267	case ADB_PBEXTJAPKBD:
268		printf("PowerBook extended keyboard (Japanese layout)\n");
269		sc->sc_power = 0x7e;
270		break;
271	case ADB_JPKBDII:
272		printf("keyboard II (Japanese layout)\n");
273		break;
274	case ADB_PBEXTKBD:
275		printf("PowerBook extended keyboard\n");
276		sc->sc_power = 0x7e;
277		break;
278	case ADB_DESIGNKBD:
279		printf("extended keyboard\n");
280		adbkbd_initleds(sc);
281		break;
282	case ADB_PBJPKBD:
283		printf("PowerBook keyboard (Japanese layout)\n");
284		sc->sc_power = 0x7e;
285		break;
286	case ADB_PBG3KBD:
287		printf("PowerBook G3 keyboard\n");
288		sc->sc_power = 0x7e;
289		break;
290	case ADB_PBG3JPKBD:
291		printf("PowerBook G3 keyboard (Japanese layout)\n");
292		sc->sc_power = 0x7e;
293		break;
294	case ADB_IBOOKKBD:
295		printf("iBook keyboard\n");
296		break;
297	default:
298		printf("mapped device (%d)\n", sc->sc_adbdev->handler_id);
299		break;
300	}
301
302	if (adbkbd_is_console && (adbkbd_console_attached == 0)) {
303		wskbd_cnattach(&adbkbd_consops, sc, &adbkbd_keymapdata);
304		adbkbd_console_attached = 1;
305		a.console = 1;
306	} else {
307		a.console = 0;
308	}
309	a.keymap = &adbkbd_keymapdata;
310	a.accessops = &adbkbd_accessops;
311	a.accesscookie = sc;
312
313	sc->sc_wskbddev = config_found_ia(self, "wskbddev", &a, wskbddevprint);
314
315#if NWSMOUSE > 0
316	/* attach the mouse device */
317	am.accessops = &adbkms_accessops;
318	am.accesscookie = sc;
319	sc->sc_wsmousedev = config_found_ia(self, "wsmousedev", &am,
320	    wsmousedevprint);
321
322	if (sc->sc_wsmousedev != NULL)
323		adbkbd_setup_sysctl(sc);
324#endif
325
326	/* finally register the power button */
327	sysmon_task_queue_init();
328	memset(&sc->sc_sm_pbutton, 0, sizeof(struct sysmon_pswitch));
329	sc->sc_sm_pbutton.smpsw_name = device_xname(sc->sc_dev);
330	sc->sc_sm_pbutton.smpsw_type = PSWITCH_TYPE_POWER;
331	if (sysmon_pswitch_register(&sc->sc_sm_pbutton) != 0)
332		aprint_error_dev(sc->sc_dev,
333		    "unable to register power button with sysmon\n");
334}
335
336static void
337adbkbd_handler(void *cookie, int len, uint8_t *data)
338{
339	struct adbkbd_softc *sc = cookie;
340
341#ifdef ADBKBD_DEBUG
342	int i;
343	printf("%s: %02x - ", device_xname(sc->sc_dev), sc->sc_us);
344	for (i = 0; i < len; i++) {
345		printf(" %02x", data[i]);
346	}
347	printf("\n");
348#endif
349	if (len >= 2) {
350		if (data[1] == sc->sc_us) {
351			adbkbd_keys(sc, data[2], data[3]);
352			return;
353		} else {
354			memcpy(sc->sc_buffer, data, len);
355		}
356		sc->sc_msg_len = len;
357		wakeup(&sc->sc_event);
358	} else {
359		DPRINTF("bogus message\n");
360	}
361}
362
363static int
364adbkbd_wait(struct adbkbd_softc *sc, int timeout)
365{
366	int cnt = 0;
367
368	if (sc->sc_poll) {
369		while (sc->sc_msg_len == 0) {
370			sc->sc_ops->poll(sc->sc_ops->cookie);
371		}
372	} else {
373		while ((sc->sc_msg_len == 0) && (cnt < timeout)) {
374			tsleep(&sc->sc_event, 0, "adbkbdio", hz);
375			cnt++;
376		}
377	}
378	return (sc->sc_msg_len > 0);
379}
380
381static void
382adbkbd_keys(struct adbkbd_softc *sc, uint8_t k1, uint8_t k2)
383{
384
385	/* keyboard event processing */
386
387	DPRINTF("[%02x %02x]", k1, k2);
388
389	if (((k1 == k2) && (k1 == 0x7f)) || (k1 == sc->sc_power)) {
390		uint32_t now = time_second;
391		uint32_t diff = now - sc->sc_timestamp;
392
393		sc->sc_timestamp = now;
394		if ((diff > 1) && (diff < 5)) {
395
396			/* power button, report to sysmon */
397			sc->sc_pe = k1;
398
399			sysmon_task_queue_sched(0, adbkbd_powerbutton, sc);
400		}
401	} else {
402
403		adbkbd_key(sc, k1);
404		if (k2 != 0xff)
405			adbkbd_key(sc, k2);
406	}
407}
408
409static void
410adbkbd_powerbutton(void *cookie)
411{
412	struct adbkbd_softc *sc = cookie;
413
414	sysmon_pswitch_event(&sc->sc_sm_pbutton,
415	    ADBK_PRESS(sc->sc_pe) ? PSWITCH_EVENT_PRESSED :
416	    PSWITCH_EVENT_RELEASED);
417}
418
419static inline void
420adbkbd_key(struct adbkbd_softc *sc, uint8_t k)
421{
422
423	if (sc->sc_poll) {
424		if (sc->sc_polled_chars >= 16) {
425			aprint_error_dev(sc->sc_dev,"polling buffer is full\n");
426		}
427		sc->sc_pollbuf[sc->sc_polled_chars] = k;
428		sc->sc_polled_chars++;
429		return;
430	}
431
432#if NWSMOUSE > 0
433	/* translate some keys to mouse events */
434	if (sc->sc_wsmousedev != NULL) {
435		if (ADBK_KEYVAL(k) == sc->sc_trans[1]) {
436			wsmouse_input(sc->sc_wsmousedev, ADBK_PRESS(k) ? 2 : 0,
437			      0, 0, 0, 0,
438			      WSMOUSE_INPUT_DELTA);
439			return;
440		}
441		if (ADBK_KEYVAL(k) == sc->sc_trans[2]) {
442			wsmouse_input(sc->sc_wsmousedev, ADBK_PRESS(k) ? 4 : 0,
443			      0, 0, 0, 0,
444			      WSMOUSE_INPUT_DELTA);
445			return;
446		}
447	}
448#endif
449
450#ifdef WSDISPLAY_COMPAT_RAWKBD
451	if (sc->sc_rawkbd) {
452		char cbuf[2];
453		int s;
454
455		cbuf[0] = k;
456
457		s = spltty();
458		wskbd_rawinput(sc->sc_wskbddev, cbuf, 1);
459		splx(s);
460	} else {
461#endif
462
463	if (ADBK_KEYVAL(k) == 0x39) {
464		/* caps lock - send up and down */
465		if (ADBK_PRESS(k) != sc->sc_capslock) {
466			sc->sc_capslock = ADBK_PRESS(k);
467			wskbd_input(sc->sc_wskbddev,
468			    WSCONS_EVENT_KEY_DOWN, 0x39);
469			wskbd_input(sc->sc_wskbddev,
470			    WSCONS_EVENT_KEY_UP, 0x39);
471		}
472	} else {
473		/* normal event */
474		int type;
475
476		type = ADBK_PRESS(k) ?
477		    WSCONS_EVENT_KEY_DOWN : WSCONS_EVENT_KEY_UP;
478		wskbd_input(sc->sc_wskbddev, type, ADBK_KEYVAL(k));
479	}
480#ifdef WSDISPLAY_COMPAT_RAWKBD
481	}
482#endif
483}
484
485/*
486 * Set the keyboard LED's.
487 *
488 * Automatically translates from ioctl/softc format to the
489 * actual keyboard register format
490 */
491static void
492adbkbd_set_leds(void *cookie, int leds)
493{
494	struct adbkbd_softc *sc = cookie;
495	int aleds;
496	short cmd;
497	uint8_t buffer[2];
498
499	DPRINTF("adbkbd_set_leds: %02x\n", leds);
500	if ((leds & 0x07) == (sc->sc_leds & 0x07))
501		return;
502
503 	if (sc->sc_have_led_control) {
504
505		aleds = (~leds & 0x04) | 3;
506		if (leds & 1)
507			aleds &= ~2;
508		if (leds & 2)
509			aleds &= ~1;
510
511		buffer[0] = 0xff;
512		buffer[1] = aleds | 0xf8;
513
514		cmd = ADBLISTEN(sc->sc_adbdev->current_addr, 2);
515		sc->sc_ops->send(sc->sc_ops->cookie, sc->sc_poll, cmd, 2,
516		    buffer);
517	}
518
519	sc->sc_leds = leds & 7;
520}
521
522static void
523adbkbd_initleds(struct adbkbd_softc *sc)
524{
525	short cmd;
526
527	/* talk R2 */
528	cmd = ADBTALK(sc->sc_adbdev->current_addr, 2);
529	sc->sc_msg_len = 0;
530	sc->sc_ops->send(sc->sc_ops->cookie, sc->sc_poll, cmd, 0, NULL);
531	if (!adbkbd_wait(sc, 10)) {
532		printf("unable to read LED state\n");
533		return;
534	}
535	sc->sc_have_led_control = 1;
536	DPRINTF("have LED control\n");
537	return;
538}
539
540static int
541adbkbd_enable(void *v, int on)
542{
543	return 0;
544}
545
546static int
547adbkbd_ioctl(void *v, u_long cmd, void *data, int flag, struct lwp *l)
548{
549	struct adbkbd_softc *sc = (struct adbkbd_softc *) v;
550
551	switch (cmd) {
552
553	case WSKBDIO_GTYPE:
554		*(int *)data = WSKBD_TYPE_ADB;
555		return 0;
556	case WSKBDIO_SETLEDS:
557		adbkbd_set_leds(sc, *(int *)data);
558		return 0;
559	case WSKBDIO_GETLEDS:
560		*(int *)data = sc->sc_leds;
561		return 0;
562#ifdef WSDISPLAY_COMPAT_RAWKBD
563	case WSKBDIO_SETMODE:
564		sc->sc_rawkbd = *(int *)data == WSKBD_RAW;
565		return 0;
566#endif
567	}
568
569	return EPASSTHROUGH;
570}
571
572int
573adbkbd_cnattach()
574{
575
576	adbkbd_is_console = 1;
577	return 0;
578}
579
580static void
581adbkbd_cngetc(void *v, u_int *type, int *data)
582{
583	struct adbkbd_softc *sc = v;
584	int key, press, val;
585	int s;
586
587	s = splhigh();
588
589	KASSERT(sc->sc_poll);
590
591	DPRINTF("polling...");
592	while (sc->sc_polled_chars == 0) {
593		sc->sc_ops->poll(sc->sc_ops->cookie);
594	}
595	DPRINTF(" got one\n");
596	splx(s);
597
598	key = sc->sc_pollbuf[0];
599	sc->sc_polled_chars--;
600	memmove(sc->sc_pollbuf, sc->sc_pollbuf + 1,
601		sc->sc_polled_chars);
602
603	press = ADBK_PRESS(key);
604	val = ADBK_KEYVAL(key);
605
606	*data = val;
607	*type = press ? WSCONS_EVENT_KEY_DOWN : WSCONS_EVENT_KEY_UP;
608}
609
610static void
611adbkbd_cnpollc(void *v, int on)
612{
613	struct adbkbd_softc *sc = v;
614
615	sc->sc_poll = on;
616	if (!on) {
617		int i;
618
619		/* feed the poll buffer's content to wskbd */
620		for (i = 0; i < sc->sc_polled_chars; i++) {
621			adbkbd_key(sc, sc->sc_pollbuf[i]);
622		}
623		sc->sc_polled_chars = 0;
624	}
625}
626
627#if NWSMOUSE > 0
628/* stuff for the pseudo mouse */
629static int
630adbkms_enable(void *v)
631{
632	return 0;
633}
634
635static int
636adbkms_ioctl(void *v, u_long cmd, void *data, int flag, struct lwp *l)
637{
638
639	switch (cmd) {
640	case WSMOUSEIO_GTYPE:
641		*(u_int *)data = WSMOUSE_TYPE_PSEUDO;
642		break;
643
644	default:
645		return (EPASSTHROUGH);
646	}
647	return (0);
648}
649
650static void
651adbkms_disable(void *v)
652{
653}
654
655static void
656adbkbd_setup_sysctl(struct adbkbd_softc *sc)
657{
658	struct sysctlnode *node, *me;
659	int ret;
660
661	DPRINTF("%s: sysctl setup\n", device_xname(sc->sc_dev));
662	ret = sysctl_createv(NULL, 0, NULL, (const struct sysctlnode **)&me,
663	       CTLFLAG_READWRITE,
664	       CTLTYPE_NODE, device_xname(sc->sc_dev), NULL,
665	       NULL, 0, NULL, 0,
666	       CTL_MACHDEP, CTL_CREATE, CTL_EOL);
667
668	ret = sysctl_createv(NULL, 0, NULL,
669	    (const struct sysctlnode **)&node,
670	    CTLFLAG_READWRITE | CTLFLAG_OWNDESC | CTLFLAG_IMMEDIATE,
671	    CTLTYPE_INT, "middle", "middle mouse button", adbkbd_sysctl_button,
672		    1, NULL, 0, CTL_MACHDEP, me->sysctl_num, CTL_CREATE,
673		    CTL_EOL);
674	node->sysctl_data = sc;
675
676	ret = sysctl_createv(NULL, 0, NULL,
677	    (const struct sysctlnode **)&node,
678	    CTLFLAG_READWRITE | CTLFLAG_OWNDESC | CTLFLAG_IMMEDIATE,
679	    CTLTYPE_INT, "right", "right mouse button", adbkbd_sysctl_button,
680		    2, NULL, 0, CTL_MACHDEP, me->sysctl_num, CTL_CREATE,
681		    CTL_EOL);
682	node->sysctl_data = sc;
683}
684
685static int
686adbkbd_sysctl_button(SYSCTLFN_ARGS)
687{
688	struct sysctlnode node = *rnode;
689	struct adbkbd_softc *sc=(struct adbkbd_softc *)node.sysctl_data;
690	const int *np = newp;
691	int btn = node.sysctl_idata, reg;
692
693	DPRINTF("adbkbd_sysctl_button %d\n", btn);
694	node.sysctl_idata = sc->sc_trans[btn];
695	reg = sc->sc_trans[btn];
696	if (np) {
697		/* we're asked to write */
698		node.sysctl_data = &reg;
699		if (sysctl_lookup(SYSCTLFN_CALL(&node)) == 0) {
700
701			sc->sc_trans[btn] = node.sysctl_idata;
702			return 0;
703		}
704		return EINVAL;
705	} else {
706		node.sysctl_size = 4;
707		return (sysctl_lookup(SYSCTLFN_CALL(&node)));
708	}
709}
710
711SYSCTL_SETUP(sysctl_adbkbdtrans_setup, "adbkbd translator setup")
712{
713
714	sysctl_createv(NULL, 0, NULL, NULL,
715		       CTLFLAG_PERMANENT,
716		       CTLTYPE_NODE, "machdep", NULL,
717		       NULL, 0, NULL, 0,
718		       CTL_MACHDEP, CTL_EOL);
719}
720#endif /* NWSMOUSE > 0 */
721