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dtkbd.c revision 1.7.42.1 
      1 /*	$NetBSD: dtkbd.c,v 1.7.42.1 2008/05/18 12:32:35 yamt Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2002, 2003 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Andrew Doran.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/cdefs.h>
     33 __KERNEL_RCSID(0, "$NetBSD: dtkbd.c,v 1.7.42.1 2008/05/18 12:32:35 yamt Exp $");
     34 
     35 #include "locators.h"
     36 
     37 #include <sys/param.h>
     38 #include <sys/systm.h>
     39 #include <sys/device.h>
     40 #include <sys/ioctl.h>
     41 #include <sys/callout.h>
     42 
     43 #include <dev/wscons/wsconsio.h>
     44 #include <dev/wscons/wskbdvar.h>
     45 #include <dev/wscons/wsksymdef.h>
     46 #include <dev/wscons/wsksymvar.h>
     47 #include <dev/dec/wskbdmap_lk201.h>
     48 #include <dev/tc/tcvar.h>
     49 
     50 #include <machine/bus.h>
     51 
     52 #include <pmax/tc/dtreg.h>
     53 #include <pmax/tc/dtvar.h>
     54 
     55 #include <pmax/pmax/cons.h>
     56 
     57 struct dtkbd_softc {
     58 	struct device	sc_dv;
     59 	struct device	*sc_wskbddev;
     60 	int		sc_enabled;
     61 };
     62 
     63 int	dtkbd_match(struct device *, struct cfdata *, void *);
     64 void	dtkbd_attach(struct device *, struct device *, void *);
     65 int	dtkbd_enable(void *, int);
     66 int	dtkbd_ioctl(void *, u_long, void *, int, struct lwp *);
     67 void	dtkbd_cngetc(void *, u_int *, int *);
     68 void	dtkbd_cnpollc(void *, int);
     69 int	dtkbd_process_msg(struct dt_msg *, u_int *, int *);
     70 void	dtkbd_handler(void *, struct dt_msg *);
     71 void	dtkbd_set_leds(void *, int);
     72 
     73 const struct wskbd_accessops dtkbd_accessops = {
     74 	dtkbd_enable,
     75 	dtkbd_set_leds,
     76 	dtkbd_ioctl,
     77 };
     78 
     79 const struct wskbd_consops dtkbd_consops = {
     80 	dtkbd_cngetc,
     81 	dtkbd_cnpollc,
     82 };
     83 
     84 CFATTACH_DECL(dtkbd, sizeof(struct dtkbd_softc),
     85     dtkbd_match, dtkbd_attach, NULL, NULL);
     86 
     87 const struct wskbd_mapdata dtkbd_keymapdata = {
     88 	lkkbd_keydesctab,
     89 #ifdef DTKBD_LAYOUT
     90 	DTKBD_LAYOUT,
     91 #else
     92 	KB_US | KB_LK401,
     93 #endif
     94 };
     95 
     96 int	dtkbd_isconsole;
     97 uint8_t	dtkbd_map[10];
     98 int	dtkbd_maplen;
     99 
    100 int
    101 dtkbd_match(struct device *parent, struct cfdata *cf, void *aux)
    102 {
    103 	struct dt_attach_args *dta;
    104 
    105 	dta = aux;
    106 	return (dta->dta_addr == DT_ADDR_KBD);
    107 }
    108 
    109 void
    110 dtkbd_attach(struct device *parent, struct device *self, void *aux)
    111 {
    112 	struct dt_softc *dt;
    113 	struct dtkbd_softc *sc;
    114 	struct wskbddev_attach_args a;
    115 
    116 	dt = (struct dt_softc *)parent;
    117 	sc = (struct dtkbd_softc *)self;
    118 
    119 	printf("\n");
    120 
    121 	if (dt_establish_handler(dt, &dt_kbd_dv, self, dtkbd_handler)) {
    122 		printf("%s: unable to establish handler\n", self->dv_xname);
    123 		return;
    124 	}
    125 
    126 	sc->sc_enabled = 1;
    127 
    128 	a.console = dtkbd_isconsole;
    129 	a.keymap = &dtkbd_keymapdata;
    130 	a.accessops = &dtkbd_accessops;
    131 	a.accesscookie = sc;
    132 	sc->sc_wskbddev = config_found(self, &a, wskbddevprint);
    133 }
    134 
    135 void
    136 dtkbd_cnattach(void)
    137 {
    138 
    139 	dtkbd_isconsole = 1;
    140 	dt_cninit();
    141 
    142 	wskbd_cnattach(&dtkbd_consops, &dtkbd_map, &dtkbd_keymapdata);
    143 }
    144 
    145 int
    146 dtkbd_enable(void *v, int on)
    147 {
    148 	struct dtkbd_softc *sc;
    149 
    150 	sc = v;
    151 	sc->sc_enabled = on;
    152 
    153 	return (0);
    154 }
    155 
    156 void
    157 dtkbd_cngetc(void *v, u_int *type, int *data)
    158 {
    159 	struct dt_msg msg;
    160 	static u_int types[20];
    161 	static int cnt, i, vals[20];
    162 
    163 	while (i >= cnt) {
    164 		for (;;) {
    165 			if (dt_msg_get(&msg, 0) == DT_GET_DONE)
    166 				if (msg.src == dt_kbd_addr &&
    167 				    !DT_CTL_P(msg.ctl))
    168 					break;
    169 			DELAY(1000);
    170 		}
    171 
    172 		cnt = dtkbd_process_msg(&msg, types, vals);
    173 		i = 0;
    174 	}
    175 
    176 	*type = types[i++];
    177 	*data = vals[i++];
    178 }
    179 
    180 void
    181 dtkbd_cnpollc(void *v, int on)
    182 {
    183 
    184 	/* XXX */
    185 }
    186 
    187 int
    188 dtkbd_ioctl(void *v, u_long cmd, void *data, int flag, struct lwp *l)
    189 {
    190 	struct dtkbd_softc *sc;
    191 
    192 	sc = (struct dtkbd_softc *)v;
    193 
    194 	switch (cmd) {
    195 	case WSKBDIO_GTYPE:
    196 		*(int *)data = WSKBD_TYPE_LK201;
    197 		return 0;
    198 	default:
    199 		/* XXX */
    200 		return (EPASSTHROUGH);
    201 	}
    202 }
    203 
    204 void
    205 dtkbd_set_leds(void *v, int state)
    206 {
    207 
    208 	/* XXX */
    209 }
    210 
    211 void
    212 dtkbd_handler(void *cookie, struct dt_msg *msg)
    213 {
    214 	struct dtkbd_softc *sc;
    215 	u_int types[20];
    216 	int i, cnt, vals[20];
    217 
    218 	sc = cookie;
    219 
    220 	if (!sc->sc_enabled)
    221 		return;
    222 
    223 	cnt = dtkbd_process_msg(msg, types, vals);
    224 	for (i = 0; i < cnt; i++)
    225 		wskbd_input(sc->sc_wskbddev, types[i], vals[i]);
    226 }
    227 
    228 int
    229 dtkbd_process_msg(struct dt_msg *msg, u_int *types, int *vals)
    230 {
    231 	u_int len, c, count;
    232 	int i, j;
    233 
    234 	len = DT_CTL_LEN(msg->ctl);
    235 
    236 	if ((msg->body[0] < DT_KBD_KEY_MIN && msg->body[0] != DT_KBD_EMPTY) ||
    237 	    len > 10) {
    238 		printf("dtkbd0: error: %x %x %x\n", len, msg->body[0],
    239 		    msg->body[1]);
    240 
    241 		/*
    242 		 * Fake an "all ups" to avoid the stuck key syndrome.
    243 		 */
    244 		msg->body[0] = DT_KBD_EMPTY;
    245 		len = 1;
    246 	}
    247 
    248 	if (msg->body[0] == DT_KBD_EMPTY) {
    249 		types[0] = WSCONS_EVENT_ALL_KEYS_UP;
    250 		vals[0] = 0;
    251 		dtkbd_maplen = 0;
    252 		return (1);
    253 	}
    254 
    255 	count = 0;
    256 
    257 	for (i = 0; i < len; i++) {
    258 		c = msg->body[i];
    259 
    260 		for (j = 0; j < dtkbd_maplen; j++)
    261 			if (dtkbd_map[j] == c)
    262 				break;
    263 
    264 		if (j == dtkbd_maplen) {
    265 			types[count] = WSCONS_EVENT_KEY_DOWN;
    266 			vals[count] = c - MIN_LK201_KEY;
    267 			count++;
    268 		}
    269 	}
    270 
    271 	for (j = 0; j < dtkbd_maplen; j++) {
    272 		c = dtkbd_map[j];
    273 
    274 		for (i = 0; i < len; i++)
    275 			if (msg->body[i] == c)
    276 				break;
    277 
    278 		if (i == len) {
    279 			types[count] = WSCONS_EVENT_KEY_UP;
    280 			vals[count] = c - MIN_LK201_KEY;
    281 			count++;
    282 		}
    283 	}
    284 
    285 	memcpy(dtkbd_map, msg->body, len);
    286 	dtkbd_maplen = len;
    287 
    288 	return (count);
    289 }
    290