wsfontdev.c

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    1 /* $NetBSD: wsfontdev.c,v 1.8 2003/06/29 22:31:06 fvdl 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 1.8 2003/06/29 22:31:06 fvdl 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 #include <sys/event.h>
   38 
   39 #include <dev/wsfont/wsfont.h>
   40 #include <dev/wscons/wsconsio.h> /* XXX */
   41 
   42 void wsfontattach(int);
   43 
   44 dev_type_open(wsfontopen);
   45 dev_type_close(wsfontclose);
   46 dev_type_ioctl(wsfontioctl);
   47 
   48 const struct cdevsw wsfont_cdevsw = {
   49         wsfontopen, wsfontclose, noread, nowrite, wsfontioctl,
   50         nostop, notty, nopoll, nommap, nokqfilter,
   51 };
   52 
   53 static int wsfont_isopen;
   54 
   55 void
   56 wsfontattach(int n)
   57 {
   58 
   59         wsfont_init();
   60 }
   61 
   62 int
   63 wsfontopen(dev_t dev, int flag, int mode, struct proc *p)
   64 {
   65 
   66         if (wsfont_isopen)
   67                 return (EBUSY);
   68         wsfont_isopen = 1;
   69         return (0);
   70 }
   71 
   72 int
   73 wsfontclose(dev_t dev, int flag, int mode, struct proc *p)
   74 {
   75 
   76         wsfont_isopen = 0;
   77         return (0);
   78 }
   79 
   80 int
   81 wsfontioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p)
   82 {
   83         char nbuf[16];
   84         void *buf;
   85         int res;
   86 
   87         switch (cmd) {
   88         case WSDISPLAYIO_LDFONT:
   89 #define d ((struct wsdisplay_font *)data)
   90                 if (d->name) {
   91                         res = copyinstr(d->name, nbuf, sizeof(nbuf), 0);
   92                         if (res)
   93                                 return (res);
   94                         d->name = nbuf;
   95                 } else
   96                         d->name = "loaded"; /* ??? */
   97                 buf = malloc(d->fontheight * d->stride * d->numchars,
   98                              M_DEVBUF, M_WAITOK);
   99                 res = copyin(d->data, buf,
  100                              d->fontheight * d->stride * d->numchars);
  101                 if (res) {
  102                         free(buf, M_DEVBUF);
  103                         return (res);
  104                 }
  105                 d->data = buf;
  106                 res = wsfont_add(d, 1);
  107                 free(buf, M_DEVBUF);
  108 #undef d
  109                 return (res);
  110         default:
  111                 return (EINVAL);
  112         }
  113 }

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FreeBSD/Linux Kernel Cross Reference sys/dev/wsfont/wsfontdev.c

FreeBSD/Linux Kernel Cross Reference
sys/dev/wsfont/wsfontdev.c