NetBSD/sys/dev/wsfont/wsfontdev.c

114 lines
3.0 KiB
C

/* $NetBSD: wsfontdev.c,v 1.6 2002/10/23 09:14:10 jdolecek Exp $ */
/*
* Copyright (c) 2001
* Matthias Drochner. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: wsfontdev.c,v 1.6 2002/10/23 09:14:10 jdolecek Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/conf.h>
#include <sys/ioctl.h>
#include <sys/malloc.h>
#include <sys/event.h>
#include <dev/wsfont/wsfont.h>
#include <dev/wscons/wsconsio.h> /* XXX */
void wsfontattach(int);
dev_type_open(wsfontopen);
dev_type_close(wsfontclose);
dev_type_ioctl(wsfontioctl);
const struct cdevsw wsfont_cdevsw = {
wsfontopen, wsfontclose, noread, nowrite, wsfontioctl,
nostop, notty, nopoll, nommap, nokqfilter,
};
static int wsfont_isopen;
void
wsfontattach(int n)
{
wsfont_init();
}
int
wsfontopen(dev_t dev, int flag, int mode, struct proc *p)
{
if (wsfont_isopen)
return (EBUSY);
wsfont_isopen = 1;
return (0);
}
int
wsfontclose(dev_t dev, int flag, int mode, struct proc *p)
{
wsfont_isopen = 0;
return (0);
}
int
wsfontioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p)
{
char nbuf[16];
void *buf;
int res;
switch (cmd) {
case WSDISPLAYIO_LDFONT:
#define d ((struct wsdisplay_font *)data)
if (d->name) {
res = copyinstr(d->name, nbuf, sizeof(nbuf), 0);
if (res)
return (res);
d->name = nbuf;
} else
d->name = "loaded"; /* ??? */
buf = malloc(d->fontheight * d->stride * d->numchars,
M_DEVBUF, M_WAITOK);
res = copyin(d->data, buf,
d->fontheight * d->stride * d->numchars);
if (res) {
free(buf, M_DEVBUF);
return (res);
}
d->data = buf;
res = wsfont_add(d, 1);
free(buf, M_DEVBUF);
#undef d
return (res);
default:
return (EINVAL);
}
}