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adb_kbd.c revision 1.1
      1 /*	$NetBSD: adb_kbd.c,v 1.1 2007/01/17 23:20:16 macallan Exp $	*/
      2 
      3 /*
      4  * Copyright (C) 1998	Colin Wood
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed by Colin Wood.
     18  * 4. The name of the author may not be used to endorse or promote products
     19  *    derived from this software without specific prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     30  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     31  */
     32 
     33 #include <sys/cdefs.h>
     34 __KERNEL_RCSID(0, "$NetBSD: adb_kbd.c,v 1.1 2007/01/17 23:20:16 macallan Exp $");
     35 
     36 #include <sys/param.h>
     37 #include <sys/device.h>
     38 #include <sys/fcntl.h>
     39 #include <sys/poll.h>
     40 #include <sys/select.h>
     41 #include <sys/proc.h>
     42 #include <sys/systm.h>
     43 #include <sys/kernel.h>
     44 #include <sys/sysctl.h>
     45 
     46 #include <dev/wscons/wsconsio.h>
     47 #include <dev/wscons/wskbdvar.h>
     48 #include <dev/wscons/wsksymdef.h>
     49 #include <dev/wscons/wsksymvar.h>
     50 #include <dev/wscons/wsmousevar.h>
     51 
     52 #include <machine/autoconf.h>
     53 #define KEYBOARD_ARRAY
     54 #include <machine/keyboard.h>
     55 #include <machine/adbsys.h>
     56 
     57 #include <dev/adb/adbvar.h>
     58 #include <dev/adb/adb_keymap.h>
     59 
     60 #include "adbdebug.h"
     61 
     62 struct adbkbd_softc {
     63 	struct device sc_dev;
     64 	struct adb_device *sc_adbdev;
     65 	struct adb_bus_accessops *sc_ops;
     66 	struct device *sc_wskbddev;
     67 	struct device *sc_wsmousedev;
     68 	int sc_leds;
     69 	int sc_have_led_control;
     70 	int sc_msg_len;
     71 	int sc_event;
     72 	int sc_poll;
     73 	int sc_polled_chars;
     74 	int sc_trans[3];
     75 	int sc_capslock;
     76 #ifdef WSDISPLAY_COMPAT_RAWKBD
     77 	int sc_rawkbd;
     78 #endif
     79 	uint8_t sc_buffer[16];
     80 	uint8_t sc_pollbuf[16];
     81 	uint8_t sc_us;
     82 };
     83 
     84 /*
     85  * Function declarations.
     86  */
     87 static int	adbkbd_match(struct device *, struct cfdata *, void *);
     88 static void	adbkbd_attach(struct device *, struct device *, void *);
     89 
     90 static void	adbkbd_initleds(struct adbkbd_softc *);
     91 static void	adbkbd_keys(struct adbkbd_softc *, uint8_t, uint8_t);
     92 static inline void adbkbd_key(struct adbkbd_softc *, uint8_t);
     93 static int	adbkbd_wait(struct adbkbd_softc *, int);
     94 
     95 /* Driver definition. */
     96 CFATTACH_DECL(adbkbd, sizeof(struct adbkbd_softc),
     97     adbkbd_match, adbkbd_attach, NULL, NULL);
     98 
     99 extern struct cfdriver akbd_cd;
    100 
    101 static int adbkbd_enable(void *, int);
    102 static int adbkbd_ioctl(void *, u_long, caddr_t, int, struct lwp *);
    103 static void adbkbd_set_leds(void *, int);
    104 static void adbkbd_handler(void *, int, uint8_t *);
    105 
    106 struct wskbd_accessops adbkbd_accessops = {
    107 	adbkbd_enable,
    108 	adbkbd_set_leds,
    109 	adbkbd_ioctl,
    110 };
    111 
    112 static void adbkbd_cngetc(void *, u_int *, int *);
    113 static void adbkbd_cnpollc(void *, int);
    114 
    115 struct wskbd_consops adbkbd_consops = {
    116 	adbkbd_cngetc,
    117 	adbkbd_cnpollc,
    118 };
    119 
    120 struct wskbd_mapdata adbkbd_keymapdata = {
    121 	akbd_keydesctab,
    122 #ifdef AKBD_LAYOUT
    123 	AKBD_LAYOUT,
    124 #else
    125 	KB_US,
    126 #endif
    127 };
    128 
    129 static int adbkms_enable(void *);
    130 static int adbkms_ioctl(void *, u_long, caddr_t, int, struct lwp *);
    131 static void adbkms_disable(void *);
    132 
    133 const struct wsmouse_accessops adbkms_accessops = {
    134 	adbkms_enable,
    135 	adbkms_ioctl,
    136 	adbkms_disable,
    137 };
    138 
    139 static int  adbkbd_sysctl_button(SYSCTLFN_ARGS);
    140 static void adbkbd_setup_sysctl(struct adbkbd_softc *);
    141 
    142 #ifdef ADBKBD_DEBUG
    143 #define DPRINTF printf
    144 #else
    145 #define DPRINTF while (0) printf
    146 #endif
    147 
    148 static int adbkbd_is_console = 0;
    149 static int adbkbd_console_attached = 0;
    150 
    151 static int
    152 adbkbd_match(parent, cf, aux)
    153 	struct device *parent;
    154 	struct cfdata *cf;
    155 	void   *aux;
    156 {
    157 	struct adb_attach_args *aaa = aux;
    158 
    159 	if (aaa->dev->original_addr == ADBADDR_KBD)
    160 		return 1;
    161 	else
    162 		return 0;
    163 }
    164 
    165 static void
    166 adbkbd_attach(struct device *parent, struct device *self, void *aux)
    167 {
    168 	struct adbkbd_softc *sc = (struct adbkbd_softc *)self;
    169 	struct adb_attach_args *aaa = aux;
    170 	short cmd;
    171 	struct wskbddev_attach_args a;
    172 	struct wsmousedev_attach_args am;
    173 
    174 	sc->sc_ops = aaa->ops;
    175 	sc->sc_adbdev = aaa->dev;
    176 	sc->sc_adbdev->cookie = sc;
    177 	sc->sc_adbdev->handler = adbkbd_handler;
    178 	sc->sc_us = ADBTALK(sc->sc_adbdev->current_addr, 0);
    179 
    180 	sc->sc_leds = 0;	/* initially off */
    181 	sc->sc_have_led_control = 0;
    182 	sc->sc_msg_len = 0;
    183 	sc->sc_poll = 0;
    184 	sc->sc_capslock = 0;
    185 	sc->sc_trans[1] = 103;	/* F11 */
    186 	sc->sc_trans[2] = 111;	/* F12 */
    187 
    188 	printf(" addr %d ", sc->sc_adbdev->current_addr);
    189 
    190 	switch (sc->sc_adbdev->handler_id) {
    191 	case ADB_STDKBD:
    192 		printf("standard keyboard\n");
    193 		break;
    194 	case ADB_ISOKBD:
    195 		printf("standard keyboard (ISO layout)\n");
    196 		break;
    197 	case ADB_EXTKBD:
    198 		cmd = ADBTALK(sc->sc_adbdev->current_addr, 1);
    199 		sc->sc_msg_len = 0;
    200 		sc->sc_ops->send(sc->sc_ops->cookie, sc->sc_poll, cmd, 0, NULL);
    201 		adbkbd_wait(sc, 10);
    202 
    203 		/* Ignore Logitech MouseMan/Trackman pseudo keyboard */
    204 		/* XXX needs testing */
    205 		if (sc->sc_buffer[2] == 0x9a && sc->sc_buffer[3] == 0x20) {
    206 			printf("Mouseman (non-EMP) pseudo keyboard\n");
    207 			return;
    208 		} else if (sc->sc_buffer[2] == 0x9a &&
    209 		    sc->sc_buffer[3] == 0x21) {
    210 			printf("Trackman (non-EMP) pseudo keyboard\n");
    211 			return;
    212 		} else {
    213 			printf("extended keyboard\n");
    214 			adbkbd_initleds(sc);
    215 		}
    216 		break;
    217 	case ADB_EXTISOKBD:
    218 		printf("extended keyboard (ISO layout)\n");
    219 		adbkbd_initleds(sc);
    220 		break;
    221 	case ADB_KBDII:
    222 		printf("keyboard II\n");
    223 		break;
    224 	case ADB_ISOKBDII:
    225 		printf("keyboard II (ISO layout)\n");
    226 		break;
    227 	case ADB_PBKBD:
    228 		printf("PowerBook keyboard\n");
    229 		break;
    230 	case ADB_PBISOKBD:
    231 		printf("PowerBook keyboard (ISO layout)\n");
    232 		break;
    233 	case ADB_ADJKPD:
    234 		printf("adjustable keypad\n");
    235 		break;
    236 	case ADB_ADJKBD:
    237 		printf("adjustable keyboard\n");
    238 		break;
    239 	case ADB_ADJISOKBD:
    240 		printf("adjustable keyboard (ISO layout)\n");
    241 		break;
    242 	case ADB_ADJJAPKBD:
    243 		printf("adjustable keyboard (Japanese layout)\n");
    244 		break;
    245 	case ADB_PBEXTISOKBD:
    246 		printf("PowerBook extended keyboard (ISO layout)\n");
    247 		break;
    248 	case ADB_PBEXTJAPKBD:
    249 		printf("PowerBook extended keyboard (Japanese layout)\n");
    250 		break;
    251 	case ADB_JPKBDII:
    252 		printf("keyboard II (Japanese layout)\n");
    253 		break;
    254 	case ADB_PBEXTKBD:
    255 		printf("PowerBook extended keyboard\n");
    256 		break;
    257 	case ADB_DESIGNKBD:
    258 		printf("extended keyboard\n");
    259 		adbkbd_initleds(sc);
    260 		break;
    261 	case ADB_PBJPKBD:
    262 		printf("PowerBook keyboard (Japanese layout)\n");
    263 		break;
    264 	case ADB_PBG3KBD:
    265 		printf("PowerBook G3 keyboard\n");
    266 		break;
    267 	case ADB_PBG3JPKBD:
    268 		printf("PowerBook G3 keyboard (Japanese layout)\n");
    269 		break;
    270 	case ADB_IBOOKKBD:
    271 		printf("iBook keyboard\n");
    272 		break;
    273 	default:
    274 		printf("mapped device (%d)\n", sc->sc_adbdev->handler_id);
    275 		break;
    276 	}
    277 
    278 	if (adbkbd_is_console && (adbkbd_console_attached == 0)) {
    279 		wskbd_cnattach(&adbkbd_consops, sc, &adbkbd_keymapdata);
    280 		adbkbd_console_attached = 1;
    281 		a.console = 1;
    282 	} else {
    283 		a.console = 0;
    284 	}
    285 	a.keymap = &adbkbd_keymapdata;
    286 	a.accessops = &adbkbd_accessops;
    287 	a.accesscookie = sc;
    288 
    289 	sc->sc_wskbddev = config_found_ia(self, "wskbddev", &a, wskbddevprint);
    290 
    291 	/* attach the mouse device */
    292 	am.accessops = &adbkms_accessops;
    293 	am.accesscookie = sc;
    294 	sc->sc_wsmousedev = config_found_ia(self, "wsmousedev", &am, wsmousedevprint);
    295 
    296 	if (sc->sc_wsmousedev != NULL)
    297 		adbkbd_setup_sysctl(sc);
    298 }
    299 
    300 static void
    301 adbkbd_handler(void *cookie, int len, uint8_t *data)
    302 {
    303 	struct adbkbd_softc *sc = cookie;
    304 
    305 #ifdef ADBKBD_DEBUG
    306 	int i;
    307 	printf("%s: %02x - ", sc->sc_dev.dv_xname, sc->sc_us);
    308 	for (i = 0; i < len; i++) {
    309 		printf(" %02x", data[i]);
    310 	}
    311 	printf("\n");
    312 #endif
    313 	if (len >= 2) {
    314 		if (data[1] == sc->sc_us) {
    315 			adbkbd_keys(sc, data[2], data[3]);
    316 			return;
    317 		} else {
    318 			memcpy(sc->sc_buffer, data, len);
    319 		}
    320 		sc->sc_msg_len = len;
    321 		wakeup(&sc->sc_event);
    322 	} else {
    323 		DPRINTF("bogus message\n");
    324 	}
    325 }
    326 
    327 static int
    328 adbkbd_wait(struct adbkbd_softc *sc, int timeout)
    329 {
    330 	int cnt = 0;
    331 
    332 	if (sc->sc_poll) {
    333 		while (sc->sc_msg_len == 0) {
    334 			sc->sc_ops->poll(sc->sc_ops->cookie);
    335 		}
    336 	} else {
    337 		while ((sc->sc_msg_len == 0) && (cnt < timeout)) {
    338 			tsleep(&sc->sc_event, 0, "adbkbdio", hz);
    339 			cnt++;
    340 		}
    341 	}
    342 	return (sc->sc_msg_len > 0);
    343 }
    344 
    345 static void
    346 adbkbd_keys(struct adbkbd_softc *sc, uint8_t k1, uint8_t k2)
    347 {
    348 	/* keyboard event processing */
    349 	DPRINTF("[%02x %02x]", k1, k2);
    350 	if (((k1 == k2) && (k1 == 0x7f)) || (k1 == 0x7e)) {
    351 		/* power button, handle separately */
    352 #ifdef ADBKBD_POWER_PANIC
    353 		panic("power button pressed");
    354 #endif
    355 	} else {
    356 		adbkbd_key(sc, k1);
    357 		if (k2 != 0xff)
    358 			adbkbd_key(sc, k2);
    359 	}
    360 }
    361 
    362 static inline void
    363 adbkbd_key(struct adbkbd_softc *sc, uint8_t k)
    364 {
    365 
    366 	if (sc->sc_poll) {
    367 		if (sc->sc_polled_chars >= 16) {
    368 			printf("%s: polling buffer is full\n",
    369 			    sc->sc_dev.dv_xname);
    370 		}
    371 		sc->sc_pollbuf[sc->sc_polled_chars] = k;
    372 		sc->sc_polled_chars++;
    373 		return;
    374 	}
    375 
    376 	/* translate some keys to mouse events */
    377 	if (sc->sc_wsmousedev != NULL) {
    378 		if (ADBK_KEYVAL(k) == sc->sc_trans[1]) {
    379 			wsmouse_input(sc->sc_wsmousedev, ADBK_PRESS(k) ? 2 : 0,
    380 			      0, 0, 0, 0,
    381 			      WSMOUSE_INPUT_DELTA);
    382 			return;
    383 		}
    384 		if (ADBK_KEYVAL(k) == sc->sc_trans[2]) {
    385 			wsmouse_input(sc->sc_wsmousedev, ADBK_PRESS(k) ? 4 : 0,
    386 			      0, 0, 0, 0,
    387 			      WSMOUSE_INPUT_DELTA);
    388 			return;
    389 		}
    390 	}
    391 #ifdef WSDISPLAY_COMPAT_RAWKBD
    392 	if (sc->sc_rawkbd) {
    393 		char cbuf[2];
    394 		int s;
    395 		int j = 0;
    396 		int c = keyboard[ADBK_KEYVAL(k)][3]
    397 
    398 		if (k & 0x80)
    399 			cbuf[j++] = 0xe0;
    400 
    401 		cbuf[j++] = (c & 0x7f) | (ADBK_PRESS(k)? 0 : 0x80);
    402 
    403 		s = spltty();
    404 		wskbd_rawinput(sc->sc_wskbddev, cbuf, j);
    405 		splx(s);
    406 	} else {
    407 #endif
    408 
    409 	if (ADBK_KEYVAL(k) == 0x39) {
    410 		/* caps lock - send up and down */
    411 		if (ADBK_PRESS(k) != sc->sc_capslock) {
    412 			sc->sc_capslock = ADBK_PRESS(k);
    413 			wskbd_input(sc->sc_wskbddev,
    414 			    WSCONS_EVENT_KEY_DOWN, 0x39);
    415 			wskbd_input(sc->sc_wskbddev,
    416 			    WSCONS_EVENT_KEY_UP, 0x39);
    417 		}
    418 	} else {
    419 		/* normal event */
    420 		int type;
    421 
    422 		type = ADBK_PRESS(k) ?
    423 		    WSCONS_EVENT_KEY_DOWN : WSCONS_EVENT_KEY_UP;
    424 		wskbd_input(sc->sc_wskbddev, type, ADBK_KEYVAL(k));
    425 	}
    426 #ifdef WSDISPLAY_COMPAT_RAWKBD
    427 	}
    428 #endif
    429 }
    430 
    431 /*
    432  * Set the keyboard LED's.
    433  *
    434  * Automatically translates from ioctl/softc format to the
    435  * actual keyboard register format
    436  */
    437 static void
    438 adbkbd_set_leds(void *cookie, int leds)
    439 {
    440 	struct adbkbd_softc *sc = cookie;
    441 	int aleds;
    442 	short cmd;
    443 	uint8_t buffer[2];
    444 
    445 	DPRINTF("adbkbd_set_leds: %02x\n", leds);
    446 	if ((leds & 0x07) == (sc->sc_leds & 0x07))
    447 		return;
    448 
    449  	if (sc->sc_have_led_control) {
    450 
    451 		aleds = (~leds & 0x04) | 3;
    452 		if (leds & 1)
    453 			aleds &= ~2;
    454 		if (leds & 2)
    455 			aleds &= ~1;
    456 
    457 		buffer[0] = 0xff;
    458 		buffer[1] = aleds | 0xf8;
    459 
    460 		cmd = ADBLISTEN(sc->sc_adbdev->current_addr, 2);
    461 		sc->sc_ops->send(sc->sc_ops->cookie, sc->sc_poll, cmd, 2, buffer);
    462 	}
    463 
    464 	sc->sc_leds = leds & 7;
    465 }
    466 
    467 static void
    468 adbkbd_initleds(struct adbkbd_softc *sc)
    469 {
    470 	short cmd;
    471 
    472 	/* talk R2 */
    473 	cmd = ADBTALK(sc->sc_adbdev->current_addr, 2);
    474 	sc->sc_msg_len = 0;
    475 	sc->sc_ops->send(sc->sc_ops->cookie, sc->sc_poll, cmd, 0, NULL);
    476 	if (!adbkbd_wait(sc, 10)) {
    477 		printf("unable to read LED state\n");
    478 		return;
    479 	}
    480 	sc->sc_have_led_control = 1;
    481 	DPRINTF("have LED control\n");
    482 	return;
    483 }
    484 
    485 static int
    486 adbkbd_enable(void *v, int on)
    487 {
    488 	return 0;
    489 }
    490 
    491 static int
    492 adbkbd_ioctl(void *v, u_long cmd, caddr_t data, int flag, struct lwp *l)
    493 {
    494 	struct adbkbd_softc *sc = (struct adbkbd_softc *) v;
    495 
    496 	switch (cmd) {
    497 
    498 	case WSKBDIO_GTYPE:
    499 		*(int *)data = WSKBD_TYPE_ADB;
    500 		return 0;
    501 	case WSKBDIO_SETLEDS:
    502 		adbkbd_set_leds(sc, *(int *)data);
    503 		return 0;
    504 	case WSKBDIO_GETLEDS:
    505 		*(int *)data = sc->sc_leds;
    506 		return 0;
    507 #ifdef WSDISPLAY_COMPAT_RAWKBD
    508 	case WSKBDIO_SETMODE:
    509 		sc->sc_rawkbd = *(int *)data == WSKBD_RAW;
    510 		return 0;
    511 #endif
    512 	}
    513 
    514 	return EPASSTHROUGH;
    515 }
    516 
    517 int
    518 adbkbd_cnattach()
    519 {
    520 
    521 	adbkbd_is_console = 1;
    522 	return 0;
    523 }
    524 
    525 static void
    526 adbkbd_cngetc(void *v, u_int *type, int *data)
    527 {
    528 	struct adbkbd_softc *sc = v;
    529 	int key, press, val;
    530 	int s;
    531 
    532 	s = splhigh();
    533 
    534 	KASSERT(sc->sc_poll);
    535 
    536 	DPRINTF("polling...");
    537 	while (sc->sc_polled_chars == 0) {
    538 		sc->sc_ops->poll(sc->sc_ops->cookie);
    539 	}
    540 	DPRINTF(" got one\n");
    541 	splx(s);
    542 
    543 	key = sc->sc_pollbuf[0];
    544 	sc->sc_polled_chars--;
    545 	memmove(sc->sc_pollbuf, sc->sc_pollbuf + 1,
    546 		sc->sc_polled_chars);
    547 
    548 	press = ADBK_PRESS(key);
    549 	val = ADBK_KEYVAL(key);
    550 
    551 	*data = val;
    552 	*type = press ? WSCONS_EVENT_KEY_DOWN : WSCONS_EVENT_KEY_UP;
    553 }
    554 
    555 static void
    556 adbkbd_cnpollc(void *v, int on)
    557 {
    558 	struct adbkbd_softc *sc = v;
    559 
    560 	sc->sc_poll = on;
    561 	if (!on) {
    562 		int i;
    563 
    564 		/* feed the poll buffer's content to wskbd */
    565 		for (i = 0; i < sc->sc_polled_chars; i++) {
    566 			adbkbd_key(sc, sc->sc_pollbuf[i]);
    567 		}
    568 		sc->sc_polled_chars = 0;
    569 	}
    570 }
    571 
    572 /* stuff for the pseudo mouse */
    573 static int
    574 adbkms_enable(void *v)
    575 {
    576 	return 0;
    577 }
    578 
    579 static int
    580 adbkms_ioctl(void *v, u_long cmd, caddr_t data, int flag, struct lwp *l)
    581 {
    582 
    583 	switch (cmd) {
    584 	case WSMOUSEIO_GTYPE:
    585 		*(u_int *)data = WSMOUSE_TYPE_PSEUDO;
    586 		break;
    587 
    588 	default:
    589 		return (EPASSTHROUGH);
    590 	}
    591 	return (0);
    592 }
    593 
    594 static void
    595 adbkms_disable(void *v)
    596 {
    597 }
    598 
    599 static void
    600 adbkbd_setup_sysctl(struct adbkbd_softc *sc)
    601 {
    602 	struct sysctlnode *node, *me;
    603 	int ret;
    604 
    605 	DPRINTF("%s: sysctl setup\n", sc->sc_dev.dv_xname);
    606 	ret = sysctl_createv(NULL, 0, NULL, (const struct sysctlnode **)&me,
    607 	       CTLFLAG_READWRITE,
    608 	       CTLTYPE_NODE, sc->sc_dev.dv_xname, NULL,
    609 	       NULL, 0, NULL, 0,
    610 	       CTL_MACHDEP, CTL_CREATE, CTL_EOL);
    611 
    612 	ret = sysctl_createv(NULL, 0, NULL,
    613 	    (const struct sysctlnode **)&node,
    614 	    CTLFLAG_READWRITE | CTLFLAG_OWNDESC | CTLFLAG_IMMEDIATE,
    615 	    CTLTYPE_INT, "middle", "middle mouse button", adbkbd_sysctl_button,
    616 		    1, NULL, 0, CTL_MACHDEP, me->sysctl_num, CTL_CREATE, CTL_EOL);
    617 	node->sysctl_data = sc;
    618 
    619 	ret = sysctl_createv(NULL, 0, NULL,
    620 	    (const struct sysctlnode **)&node,
    621 	    CTLFLAG_READWRITE | CTLFLAG_OWNDESC | CTLFLAG_IMMEDIATE,
    622 	    CTLTYPE_INT, "right", "right mouse button", adbkbd_sysctl_button,
    623 		    2, NULL, 0, CTL_MACHDEP, me->sysctl_num, CTL_CREATE, CTL_EOL);
    624 	node->sysctl_data = sc;
    625 }
    626 
    627 static int
    628 adbkbd_sysctl_button(SYSCTLFN_ARGS)
    629 {
    630 	struct sysctlnode node = *rnode;
    631 	struct adbkbd_softc *sc=(struct adbkbd_softc *)node.sysctl_data;
    632 	const int *np = newp;
    633 	int btn = node.sysctl_idata, reg;
    634 
    635 	DPRINTF("adbkbd_sysctl_button %d\n", btn);
    636 	node.sysctl_idata = sc->sc_trans[btn];
    637 	reg = sc->sc_trans[btn];
    638 	if (np) {
    639 		/* we're asked to write */
    640 		node.sysctl_data = &reg;
    641 		if (sysctl_lookup(SYSCTLFN_CALL(&node)) == 0) {
    642 
    643 			sc->sc_trans[btn] = node.sysctl_idata;
    644 			return 0;
    645 		}
    646 		return EINVAL;
    647 	} else {
    648 		node.sysctl_size = 4;
    649 		return (sysctl_lookup(SYSCTLFN_CALL(&node)));
    650 	}
    651 }
    652 
    653 SYSCTL_SETUP(sysctl_adbkbdtrans_setup, "adbkbd translator setup")
    654 {
    655 
    656 	sysctl_createv(NULL, 0, NULL, NULL,
    657 		       CTLFLAG_PERMANENT,
    658 		       CTLTYPE_NODE, "machdep", NULL,
    659 		       NULL, 0, NULL, 0,
    660 		       CTL_MACHDEP, CTL_EOL);
    661 }
    662