Home | History | Annotate | Line # | Download | only in tc 
      1 /*	$NetBSD: dtkbd.c,v 1.13 2021/08/07 16:19:02 thorpej 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 1.13 2021/08/07 16:19:02 thorpej Exp $");
     34 
     35 #include "locators.h"
     36 
     37 #include <sys/param.h>
     38 #include <sys/bus.h>
     39 #include <sys/callout.h>
     40 #include <sys/device.h>
     41 #include <sys/ioctl.h>
     42 #include <sys/systm.h>
     43 
     44 #include <dev/wscons/wsconsio.h>
     45 #include <dev/wscons/wskbdvar.h>
     46 #include <dev/wscons/wsksymdef.h>
     47 #include <dev/wscons/wsksymvar.h>
     48 #include <dev/dec/wskbdmap_lk201.h>
     49 #include <dev/tc/tcvar.h>
     50 
     51 #include <pmax/tc/dtreg.h>
     52 #include <pmax/tc/dtvar.h>
     53 
     54 #include <pmax/pmax/cons.h>
     55 
     56 struct dtkbd_softc {
     57 	device_t	sc_dev;
     58 	device_t	sc_wskbddev;
     59 	int		sc_enabled;
     60 };
     61 
     62 int	dtkbd_match(device_t, cfdata_t, void *);
     63 void	dtkbd_attach(device_t, device_t, void *);
     64 int	dtkbd_enable(void *, int);
     65 int	dtkbd_ioctl(void *, u_long, void *, int, struct lwp *);
     66 void	dtkbd_cngetc(void *, u_int *, int *);
     67 void	dtkbd_cnpollc(void *, int);
     68 int	dtkbd_process_msg(struct dt_msg *, u_int *, int *);
     69 void	dtkbd_handler(void *, struct dt_msg *);
     70 void	dtkbd_set_leds(void *, int);
     71 
     72 const struct wskbd_accessops dtkbd_accessops = {
     73 	dtkbd_enable,
     74 	dtkbd_set_leds,
     75 	dtkbd_ioctl,
     76 };
     77 
     78 const struct wskbd_consops dtkbd_consops = {
     79 	dtkbd_cngetc,
     80 	dtkbd_cnpollc,
     81 };
     82 
     83 CFATTACH_DECL_NEW(dtkbd, sizeof(struct dtkbd_softc),
     84     dtkbd_match, dtkbd_attach, NULL, NULL);
     85 
     86 const struct wskbd_mapdata dtkbd_keymapdata = {
     87 	lkkbd_keydesctab,
     88 #ifdef DTKBD_LAYOUT
     89 	DTKBD_LAYOUT,
     90 #else
     91 	KB_US | KB_LK401,
     92 #endif
     93 };
     94 
     95 int	dtkbd_isconsole;
     96 uint8_t	dtkbd_map[10];
     97 int	dtkbd_maplen;
     98 
     99 int
    100 dtkbd_match(device_t parent, cfdata_t cf, void *aux)
    101 {
    102 	struct dt_attach_args *dta;
    103 
    104 	dta = aux;
    105 	return (dta->dta_addr == DT_ADDR_KBD);
    106 }
    107 
    108 void
    109 dtkbd_attach(device_t parent, device_t self, void *aux)
    110 {
    111 	struct dt_softc *dt;
    112 	struct dtkbd_softc *sc;
    113 	struct wskbddev_attach_args a;
    114 
    115 	dt = device_private(parent);
    116 	sc = device_private(self);
    117 	sc->sc_dev = self;
    118 
    119 	printf("\n");
    120 
    121 	if (dt_establish_handler(dt, &dt_kbd_dv, sc, dtkbd_handler)) {
    122 		printf("%s: unable to establish handler\n", device_xname(self));
    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, CFARGS_NONE);
    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 
    191 	switch (cmd) {
    192 	case WSKBDIO_GTYPE:
    193 		*(int *)data = WSKBD_TYPE_LK201;
    194 		return 0;
    195 	default:
    196 		/* XXX */
    197 		return (EPASSTHROUGH);
    198 	}
    199 }
    200 
    201 void
    202 dtkbd_set_leds(void *v, int state)
    203 {
    204 
    205 	/* XXX */
    206 }
    207 
    208 void
    209 dtkbd_handler(void *cookie, struct dt_msg *msg)
    210 {
    211 	struct dtkbd_softc *sc;
    212 	u_int types[20];
    213 	int i, cnt, vals[20];
    214 
    215 	sc = cookie;
    216 
    217 	if (!sc->sc_enabled)
    218 		return;
    219 
    220 	cnt = dtkbd_process_msg(msg, types, vals);
    221 	for (i = 0; i < cnt; i++)
    222 		wskbd_input(sc->sc_wskbddev, types[i], vals[i]);
    223 }
    224 
    225 int
    226 dtkbd_process_msg(struct dt_msg *msg, u_int *types, int *vals)
    227 {
    228 	u_int len, c, count;
    229 	int i, j;
    230 
    231 	len = DT_CTL_LEN(msg->ctl);
    232 
    233 	if ((msg->body[0] < DT_KBD_KEY_MIN && msg->body[0] != DT_KBD_EMPTY) ||
    234 	    len > 10) {
    235 		printf("dtkbd0: error: %x %x %x\n", len, msg->body[0],
    236 		    msg->body[1]);
    237 
    238 		/*
    239 		 * Fake an "all ups" to avoid the stuck key syndrome.
    240 		 */
    241 		msg->body[0] = DT_KBD_EMPTY;
    242 		len = 1;
    243 	}
    244 
    245 	if (msg->body[0] == DT_KBD_EMPTY) {
    246 		types[0] = WSCONS_EVENT_ALL_KEYS_UP;
    247 		vals[0] = 0;
    248 		dtkbd_maplen = 0;
    249 		return (1);
    250 	}
    251 
    252 	count = 0;
    253 
    254 	for (i = 0; i < len; i++) {
    255 		c = msg->body[i];
    256 
    257 		for (j = 0; j < dtkbd_maplen; j++)
    258 			if (dtkbd_map[j] == c)
    259 				break;
    260 
    261 		if (j == dtkbd_maplen) {
    262 			types[count] = WSCONS_EVENT_KEY_DOWN;
    263 			vals[count] = c - MIN_LK201_KEY;
    264 			count++;
    265 		}
    266 	}
    267 
    268 	for (j = 0; j < dtkbd_maplen; j++) {
    269 		c = dtkbd_map[j];
    270 
    271 		for (i = 0; i < len; i++)
    272 			if (msg->body[i] == c)
    273 				break;
    274 
    275 		if (i == len) {
    276 			types[count] = WSCONS_EVENT_KEY_UP;
    277 			vals[count] = c - MIN_LK201_KEY;
    278 			count++;
    279 		}
    280 	}
    281 
    282 	memcpy(dtkbd_map, msg->body, len);
    283 	dtkbd_maplen = len;
    284 
    285 	return (count);
    286 }
    287