kbd_wscons.c revision 1.24 
1/*	$OpenBSD: kbd_wscons.c,v 1.24 2006/07/31 22:09:37 miod 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
45char *kbtype_tab[] = {
46	"pc-xt/pc-at",
47	"usb",
48	"adb",
49	"lk201",
50	"sun",
51	"sun5",
52	"hil",
53	"gsc",
54	"domain"
55};
56enum {	SA_PCKBD,
57	SA_UKBD,
58	SA_AKBD,
59	SA_LKKBD,
60	SA_SUNKBD,
61	SA_SUN5KBD,
62	SA_HILKBD,
63	SA_GSCKBD,
64	SA_DOMAINKBD,
65
66	SA_MAX
67};
68
69#ifndef NOKVM
70struct nlist nl[] = {
71	{ "_pckbd_keydesctab" },
72	{ "_ukbd_keydesctab" },
73	{ "_akbd_keydesctab" },
74	{ "_lkkbd_keydesctab" },
75	{ "_sunkbd_keydesctab" },
76	{ "_sunkbd5_keydesctab" },
77	{ "_hilkbd_keydesctab" },
78	{ "_gsckbd_keydesctab" },
79	{ "_dnkbd_keydesctab" },
80	{ NULL },
81};
82#endif /* NOKVM */
83
84int rebuild = 0;
85
86struct nameint {
87	int value;
88	char *name;
89};
90
91struct nameint kbdenc_tab[] = {
92	KB_ENCTAB
93	,
94	{ 0, 0 }
95};
96
97struct nameint kbdvar_tab[] = {
98	KB_VARTAB
99	,
100	{ 0, 0 }
101};
102
103extern char *__progname;
104
105void	kbd_show_enc(kvm_t *kd, int idx);
106void	kbd_list(void);
107void	kbd_set(char *name, int verbose);
108
109void
110kbd_show_enc(kvm_t *kd, int idx)
111{
112#ifndef NOKVM
113	struct wscons_keydesc r;
114	unsigned long p;
115	int found;
116	u_int32_t variant;
117	struct nameint *n;
118#else
119	int i;
120#endif /* NOKVM */
121
122#ifndef NOKVM
123	p = nl[idx].n_value;
124	if (p == 0) {
125		printf("no tables available for %s keyboard\n\n",
126		    kbtype_tab[idx]);
127		return;
128	}
129#endif
130
131	printf("tables available for %s keyboard:\nencoding\n\n",
132	    kbtype_tab[idx]);
133
134#ifdef NOKVM
135	for (i = 0; kbdenc_tab[i].value; i++)
136		printf("%s\n", kbdenc_tab[i].name);
137#else
138	kvm_read(kd, p, &r, sizeof(r));
139	while (r.name != 0) {
140		n = &kbdenc_tab[0];
141		found = 0;
142		while (n->value) {
143			if (n->value == KB_ENCODING(r.name)) {
144				printf("%s",n->name);
145				found++;
146			}
147			n++;
148		}
149		if (found == 0) {
150			printf("<encoding 0x%04x>",KB_ENCODING(r.name));
151			rebuild++;
152		}
153		n = &kbdvar_tab[0];
154		found = 0;
155		variant = KB_VARIANT(r.name);
156		while (n->value) {
157			if ((n->value & KB_VARIANT(r.name)) == n->value) {
158				printf(".%s",n->name);
159				variant &= ~n->value;
160			}
161			n++;
162		}
163		if (variant != 0) {
164			printf(".<variant 0x%08x>",variant);
165			rebuild++;
166		}
167		printf("\n");
168		p += sizeof(r);
169		kvm_read(kd, p, &r, sizeof(r));
170	}
171#endif
172	printf("\n");
173}
174
175void
176kbd_list(void)
177{
178	int	kbds[SA_MAX];
179	int	fd, i, kbtype;
180	char	device[MAXPATHLEN];
181	kvm_t	*kd = NULL;
182#ifndef NOKVM
183	char	errbuf[LINE_MAX];
184#endif
185
186	bzero(kbds, sizeof(kbds));
187
188	/* Go through all keyboards. */
189	for (i = 0; i < NUM_KBD; i++) {
190		(void) snprintf(device, sizeof device, "/dev/wskbd%d", i);
191		fd = open(device, O_WRONLY);
192		if (fd < 0)
193			fd = open(device, O_RDONLY);
194		if (fd >= 0) {
195			if (ioctl(fd, WSKBDIO_GTYPE, &kbtype) < 0)
196				err(1, "WSKBDIO_GTYPE");
197			switch (kbtype) {
198			case WSKBD_TYPE_PC_XT:
199			case WSKBD_TYPE_PC_AT:
200				kbds[SA_PCKBD]++;
201				break;
202			case WSKBD_TYPE_USB:
203				kbds[SA_UKBD]++;
204				break;
205			case WSKBD_TYPE_ADB:
206				kbds[SA_AKBD]++;
207				break;
208			case WSKBD_TYPE_LK201:
209			case WSKBD_TYPE_LK401:
210				kbds[SA_LKKBD]++;
211				break;
212			case WSKBD_TYPE_SUN:
213				kbds[SA_SUNKBD]++;
214				break;
215			case WSKBD_TYPE_SUN5:
216				kbds[SA_SUN5KBD]++;
217				break;
218			case WSKBD_TYPE_HIL:
219				kbds[SA_HILKBD]++;
220				break;
221			case WSKBD_TYPE_GSC:
222				kbds[SA_GSCKBD]++;
223				break;
224			case WSKBD_TYPE_DOMAIN:
225				kbds[SA_DOMAINKBD]++;
226				break;
227			};
228			close(fd);
229		}
230	}
231
232#ifndef NOKVM
233	if ((kd = kvm_openfiles(NULL, NULL, NULL, O_RDONLY, errbuf)) == 0)
234		errx(1, "kvm_openfiles: %s", errbuf);
235
236	if (kvm_nlist(kd, nl) == -1)
237		errx(1, "kvm_nlist: %s", kvm_geterr(kd));
238#endif
239
240	for (i = 0; i < SA_MAX; i++)
241		if (kbds[i] != 0)
242			kbd_show_enc(kd, i);
243
244#ifndef NOKVM
245	kvm_close(kd);
246#endif
247	if (rebuild > 0)
248		printf("Unknown encoding or variant. kbd(8) needs to be rebuilt.\n");
249}
250
251void
252kbd_set(char *name, int verbose)
253{
254	char	buf[LINE_MAX], *c, *b, device[sizeof "/dev/wskbd00"];
255	int	map = 0, v, i, fd;
256	struct nameint *n;
257
258	c = name;
259	b = buf;
260	while (*c != '.' && *c != '\0' && b < buf + sizeof(buf) - 1)
261		*b++ = *c++;
262	*b = '\0';
263	n = &kbdenc_tab[0];
264	while (n->value) {
265		if (strcmp(n->name, buf) == 0)
266			map = n->value;
267		n++;
268	}
269	if (map == 0)
270		errx(1, "unknown encoding %s", buf);
271	while (*c == '.') {
272		b = buf;
273		c++;
274		while (*c != '.' && *c != '\0' && b < buf + sizeof(buf) - 1)
275			*b++ = *c++;
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			n++;
283		}
284		if (v == 0)
285			errx(1, "unknown variant %s", buf);
286		map |= v;
287	}
288
289	/* Go through all keyboards. */
290	v = 0;
291	for (i = 0; i < NUM_KBD; i++) {
292		(void) snprintf(device, sizeof device, "/dev/wskbd%d", i);
293		fd = open(device, O_WRONLY);
294		if (fd < 0)
295			fd = open(device, O_RDONLY);
296		if (fd >= 0) {
297			if (ioctl(fd, WSKBDIO_SETENCODING, &map) < 0) {
298				if (errno == EINVAL) {
299					fprintf(stderr,
300					    "%s: unsupported encoding %s on %s\n",
301					    __progname, name, device);
302				} else
303					err(1, "WSKBDIO_SETENCODING: %s", device);
304				v--;
305			}
306			v++;
307			close(fd);
308		}
309	}
310
311	if (verbose && v > 0)
312		fprintf(stderr, "kbd: keyboard mapping set to %s\n", name);
313}
314