kbd_wscons.c revision 1.18 
1/*	$OpenBSD: kbd_wscons.c,v 1.18 2004/10/08 13:23:41 jaredy Exp $ */
2
3/*
4 * Copyright (c) 2001 Mats O Jansson.  All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include <sys/param.h>
28#include <sys/ioctl.h>
29#include <sys/time.h>
30#include <dev/wscons/wsconsio.h>
31#include <dev/wscons/wsksymdef.h>
32
33#include <err.h>
34#include <errno.h>
35#include <kvm.h>
36#include <fcntl.h>
37#include <limits.h>
38#include <nlist.h>
39#include <stdio.h>
40#include <string.h>
41#include <unistd.h>
42
43#define	NUM_KBD	10
44
45#define SA_PCKBD 0
46#define SA_UKBD  1
47#define SA_AKBD	 2
48#define SA_ZSKBD 3
49#define SA_SUNKBD 4
50#define SA_SUN5KBD 5
51#define SA_HILKBD 6
52#define	SA_GSCKBD 7
53
54#ifndef NOKVM
55struct nlist nl[] = {
56	{ "_pckbd_keydesctab" },
57	{ "_ukbd_keydesctab" },
58	{ "_akbd_keydesctab" },
59	{ "_zskbd_keydesctab" },
60	{ "_sunkbd_keydesctab" },
61	{ "_sunkbd5_keydesctab" },
62	{ "_hilkbd_keydesctab" },
63	{ "_gsckbd_keydesctab" },
64	{ NULL },
65};
66
67char *kbtype_tab[] = {
68	"pc-xt/pc-at",
69	"usb",
70	"adb",
71	"lk201",
72	"sun",
73	"sun5",
74	"hil",
75	"gsc",
76};
77
78int rebuild = 0;
79
80#endif /* NOKVM */
81
82struct nameint {
83	int value;
84	char *name;
85};
86
87struct nameint kbdenc_tab[] = {
88	KB_ENCTAB
89	,
90	{ 0, 0 }
91};
92
93struct nameint kbdvar_tab[] = {
94	KB_VARTAB
95	,
96	{ 0, 0 }
97};
98
99extern char *__progname;
100
101void	kbd_show_enc(kvm_t *kd, int idx);
102void	kbd_list(void);
103void	kbd_set(char *name, int verbose);
104
105#ifndef NOKVM
106void
107kbd_show_enc(kvm_t *kd, int idx)
108{
109	struct wscons_keydesc r;
110	unsigned long p;
111	struct nameint *n;
112	int found;
113	u_int32_t variant;
114
115	printf("tables available for %s keyboard:\nencoding\n\n",
116	       kbtype_tab[idx]);
117	p = nl[idx].n_value;
118	kvm_read(kd, p, &r, sizeof(r));
119	while (r.name != 0) {
120		n = &kbdenc_tab[0];
121		found = 0;
122		while (n->value) {
123			if (n->value == KB_ENCODING(r.name)) {
124				printf("%s",n->name);
125				found++;
126			}
127			n++;
128		}
129		if (found == 0) {
130			printf("<encoding 0x%04x>",KB_ENCODING(r.name));
131			rebuild++;
132		}
133		n = &kbdvar_tab[0];
134		found = 0;
135		variant = KB_VARIANT(r.name);
136		while (n->value) {
137			if ((n->value & KB_VARIANT(r.name)) == n->value) {
138				printf(".%s",n->name);
139				variant &= ~n->value;
140			}
141			n++;
142		}
143		if (variant != 0) {
144			printf(".<variant 0x%08x>",variant);
145			rebuild++;
146		}
147		printf("\n");
148		p += sizeof(r);
149		kvm_read(kd, p, &r, sizeof(r));
150	}
151	printf("\n");
152}
153#endif
154
155void
156kbd_list(void)
157{
158	int	fd, i, kbtype;
159#ifndef NOKVM
160	kvm_t	*kd;
161	char	errbuf[_POSIX2_LINE_MAX];
162#endif
163	char	device[MAXPATHLEN];
164	int	pc_kbd = 0;
165	int	usb_kbd = 0;
166	int	adb_kbd = 0;
167	int	zs_kbd = 0;
168	int	sun_kbd = 0;
169	int	sun5_kbd = 0;
170	int	hil_kbd = 0;
171	int	gsc_kbd = 0;
172
173	/* Go through all keyboards. */
174	for (i = 0; i < NUM_KBD; i++) {
175		(void) snprintf(device, sizeof device, "/dev/wskbd%d", i);
176		fd = open(device, O_WRONLY);
177		if (fd < 0)
178			fd = open(device, O_RDONLY);
179		if (fd >= 0) {
180			if (ioctl(fd, WSKBDIO_GTYPE, &kbtype) < 0)
181				err(1, "WSKBDIO_GTYPE");
182			if ((kbtype == WSKBD_TYPE_PC_XT) ||
183			    (kbtype == WSKBD_TYPE_PC_AT))
184				pc_kbd++;
185			if (kbtype == WSKBD_TYPE_USB)
186				usb_kbd++;
187			if (kbtype == WSKBD_TYPE_ADB)
188				adb_kbd++;
189			if (kbtype == WSKBD_TYPE_LK201)
190				zs_kbd++;
191			if (kbtype == WSKBD_TYPE_SUN)
192				sun_kbd++;
193			if (kbtype == WSKBD_TYPE_SUN5)
194				sun5_kbd++;
195			if (kbtype == WSKBD_TYPE_HIL)
196				hil_kbd++;
197			if (kbtype == WSKBD_TYPE_GSC)
198				gsc_kbd++;
199			close(fd);
200		}
201	}
202
203#ifndef NOKVM
204	if ((kd = kvm_openfiles(NULL, NULL, NULL, O_RDONLY, errbuf)) == 0)
205		errx(1, "kvm_openfiles: %s", errbuf);
206
207	if (kvm_nlist(kd, nl) == -1)
208		errx(1, "kvm_nlist: %s", kvm_geterr(kd));
209
210	if (pc_kbd > 0)
211		kbd_show_enc(kd, SA_PCKBD);
212
213	if (usb_kbd > 0)
214		kbd_show_enc(kd, SA_UKBD);
215
216	if (adb_kbd > 0)
217		kbd_show_enc(kd, SA_AKBD);
218
219	if (zs_kbd > 0)
220		kbd_show_enc(kd, SA_ZSKBD);
221
222	if (sun_kbd > 0)
223		kbd_show_enc(kd, SA_SUNKBD);
224
225	if (sun5_kbd > 0)
226		kbd_show_enc(kd, SA_SUN5KBD);
227
228	if (hil_kbd > 0)
229		kbd_show_enc(kd, SA_HILKBD);
230
231	if (gsc_kbd > 0)
232		kbd_show_enc(kd, SA_GSCKBD);
233
234	kvm_close(kd);
235
236	if (rebuild > 0) {
237		printf("Unknown encoding or variant. kbd(1) needs to be rebuilt.\n");
238	}
239#else
240	printf("List not available; sorry.\n");
241#endif
242}
243
244void
245kbd_set(char *name, int verbose)
246{
247	char	buf[_POSIX2_LINE_MAX];
248	char	*c,*b;
249	struct nameint *n;
250	int	map = 0,v,i,fd;
251	char	device[sizeof "/dev/wskbd00"];
252
253	c = name;
254	b = buf;
255	while ((*c != '.') && (*c != '\0') &&
256	    (b < buf + sizeof(buf) - 1)) {
257		*b++ = *c++;
258	}
259	*b = '\0';
260	n = &kbdenc_tab[0];
261	while (n->value) {
262		if (strcmp(n->name,buf) == 0) {
263			map = n->value;
264		}
265		n++;
266	}
267	if (map == 0)
268		errx(1, "unknown encoding %s", buf);
269	while (*c == '.') {
270		b = buf;
271		c++;
272		while ((*c != '.') && (*c != '\0') &&
273		    (b < buf + sizeof(buf) - 1)) {
274			*b++ = *c++;
275		}
276		*b = '\0';
277		v = 0;
278		n = &kbdvar_tab[0];
279		while (n->value) {
280			if (strcmp(n->name,buf) == 0) {
281				v = n->value;
282			}
283			n++;
284		}
285		if (v == 0)
286			errx(1, "unknown variant %s", buf);
287		map |= v;
288	}
289
290	/* Go through all keyboards. */
291	v = 0;
292	for (i = 0; i < NUM_KBD; i++) {
293		(void) snprintf(device, sizeof device, "/dev/wskbd%d", i);
294		fd = open(device, O_WRONLY);
295		if (fd < 0)
296			fd = open(device, O_RDONLY);
297		if (fd >= 0) {
298			if (ioctl(fd, WSKBDIO_SETENCODING, &map) < 0) {
299				if (errno == EINVAL) {
300					fprintf(stderr,
301					    "%s: unsupported encoding %s on %s\n",
302					    __progname, name, device);
303				} else {
304					err(1, "WSKBDIO_SETENCODING: %s", device);
305				}
306				v--;
307			}
308			v++;
309			close(fd);
310		}
311	}
312
313	if (verbose && v > 0)
314		fprintf(stderr, "kbd: keyboard mapping set to %s\n", name);
315}
316