xref: /netbsd/sys/dev/wsfont/wsfontdev.c (revision bf9ec67e)
1 /* $NetBSD: wsfontdev.c,v 1.3 2001/11/13 06:11:50 lukem Exp $ */
2 
3 /*
4  * Copyright (c) 2001
5  * 	Matthias Drochner.  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  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  */
28 
29 #include <sys/cdefs.h>
30 __KERNEL_RCSID(0, "$NetBSD: wsfontdev.c,v 1.3 2001/11/13 06:11:50 lukem Exp $");
31 
32 #include <sys/param.h>
33 #include <sys/systm.h>
34 #include <sys/conf.h>
35 #include <sys/ioctl.h>
36 #include <sys/malloc.h>
37 
38 #include <dev/wsfont/wsfont.h>
39 #include <dev/wscons/wsconsio.h> /* XXX */
40 
41 void wsfontattach(int);
42 cdev_decl(wsfont);
43 
44 static int wsfont_isopen;
45 
46 void
47 wsfontattach(int n)
48 {
49 
50 	wsfont_init();
51 }
52 
53 int
54 wsfontopen(dev_t dev, int flag, int mode, struct proc *p)
55 {
56 
57 	if (wsfont_isopen)
58 		return (EBUSY);
59 	wsfont_isopen = 1;
60 	return (0);
61 }
62 
63 int
64 wsfontclose(dev_t dev, int flag, int mode, struct proc *p)
65 {
66 
67 	wsfont_isopen = 0;
68 	return (0);
69 }
70 
71 int
72 wsfontioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p)
73 {
74 	char nbuf[16];
75 	void *buf;
76 	int res;
77 
78 	switch (cmd) {
79 	case WSDISPLAYIO_LDFONT:
80 #define d ((struct wsdisplay_font *)data)
81 		if (d->name) {
82 			res = copyinstr(d->name, nbuf, sizeof(nbuf), 0);
83 			if (res)
84 				return (res);
85 			d->name = nbuf;
86 		} else
87 			d->name = "loaded"; /* ??? */
88 		buf = malloc(d->fontheight * d->stride * d->numchars,
89 			     M_DEVBUF, M_WAITOK);
90 		res = copyin(d->data, buf,
91 			     d->fontheight * d->stride * d->numchars);
92 		if (res) {
93 			free(buf, M_DEVBUF);
94 			return (res);
95 		}
96 		d->data = buf;
97 		res = wsfont_add(d, 1);
98 		free(buf, M_DEVBUF);
99 #undef d
100 		return (res);
101 	default:
102 		return (EINVAL);
103 	}
104 
105 	return (0);
106 }
107