wsfontdev.c revision 1.2 
1/* $NetBSD: wsfontdev.c,v 1.2 2001/10/13 16:05:42 augustss 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/param.h>
30#include <sys/systm.h>
31#include <sys/conf.h>
32#include <sys/ioctl.h>
33#include <sys/malloc.h>
34
35#include <dev/wsfont/wsfont.h>
36#include <dev/wscons/wsconsio.h> /* XXX */
37
38void wsfontattach(int);
39cdev_decl(wsfont);
40
41static int wsfont_isopen;
42
43void
44wsfontattach(int n)
45{
46
47	wsfont_init();
48}
49
50int
51wsfontopen(dev_t dev, int flag, int mode, struct proc *p)
52{
53
54	if (wsfont_isopen)
55		return (EBUSY);
56	wsfont_isopen = 1;
57	return (0);
58}
59
60int
61wsfontclose(dev_t dev, int flag, int mode, struct proc *p)
62{
63
64	wsfont_isopen = 0;
65	return (0);
66}
67
68int
69wsfontioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p)
70{
71	char nbuf[16];
72	void *buf;
73	int res;
74
75	switch (cmd) {
76	case WSDISPLAYIO_LDFONT:
77#define d ((struct wsdisplay_font *)data)
78		if (d->name) {
79			res = copyinstr(d->name, nbuf, sizeof(nbuf), 0);
80			if (res)
81				return (res);
82			d->name = nbuf;
83		} else
84			d->name = "loaded"; /* ??? */
85		buf = malloc(d->fontheight * d->stride * d->numchars,
86			     M_DEVBUF, M_WAITOK);
87		res = copyin(d->data, buf,
88			     d->fontheight * d->stride * d->numchars);
89		if (res) {
90			free(buf, M_DEVBUF);
91			return (res);
92		}
93		d->data = buf;
94		res = wsfont_add(d, 1);
95		free(buf, M_DEVBUF);
96#undef d
97		return (res);
98	default:
99		return (EINVAL);
100	}
101
102	return (0);
103}
104