BSD 4_3_Net_2 release

[unix-history] / usr / src / sys / hp300 / dev / ite_subr.c

/*
* Copyright (c) 1988 University of Utah.
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* the Systems Programming Group of the University of Utah Computer
* Science Department.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
*    must display the following acknowledgement:
*      This product includes software developed by the University of
*      California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
*    may be used to endorse or promote products derived from this software
*    without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
*
* from: Utah $Hdr: ite_subr.c 1.1 90/07/09$
*
*      @(#)ite_subr.c  7.4 (Berkeley) 5/4/91
*/

#include "ite.h"
#if NITE > 0

#include "param.h"
#include "conf.h"
#include "proc.h"
#include "ioctl.h"
#include "tty.h"
#include "systm.h"

#include "itevar.h"
#include "itereg.h"

#include "machine/cpu.h"

ite_devinfo(ip)
       struct ite_softc *ip;
{
       struct fontinfo *fi;
       struct font *fd;

       fi = (struct fontinfo *) ((*FONTROM << 8 | *(FONTROM + 2)) + REGADDR);
       fd = (struct font *) ((fi->haddr << 8 | fi->laddr) + REGADDR);

       ip->ftheight = fd->fh;
       ip->ftwidth  = fd->fw;
       ip->fbwidth  = ITEREGS->fbwidth_h << 8 | ITEREGS->fbwidth_l;
       ip->fbheight = ITEREGS->fbheight_h << 8 | ITEREGS->fbheight_l;
       ip->dwidth   = ITEREGS->dispwidth_h << 8 | ITEREGS->dispwidth_l;
       ip->dheight  = ITEREGS->dispheight_h << 8 | ITEREGS->dispheight_l;
       ip->rows     = ip->dheight / ip->ftheight;
       ip->cols     = ip->dwidth / ip->ftwidth;

       if (ip->fbwidth > ip->dwidth) {
               /*
                * Stuff goes to right of display.
                */
               ip->fontx    = ip->dwidth;
               ip->fonty    = 0;
               ip->cpl      = (ip->fbwidth - ip->dwidth) / ip->ftwidth;
               ip->cblankx  = ip->dwidth;
               ip->cblanky  = ip->fonty + ((128 / ip->cpl) +1) * ip->ftheight;
       }
       else {
               /*
                * Stuff goes below the display.
                */
               ip->fontx   = 0;
               ip->fonty   = ip->dheight;
               ip->cpl     = ip->fbwidth / ip->ftwidth;
               ip->cblankx = 0;
               ip->cblanky = ip->fonty + ((128 / ip->cpl) + 1) * ip->ftheight;
       }
}

ite_fontinit(ip)
       register struct ite_softc *ip;
{
       struct fontinfo *fi;
       struct font *fd;
       register u_char *fbmem, *dp;
       register int bn;
       int c, l, b;

       fi = (struct fontinfo *) ((*FONTROM << 8 | *(FONTROM + 2)) + REGADDR);
       fd = (struct font *) ((fi->haddr << 8 | fi->laddr) + REGADDR);

       dp = fd->data;

       for (c = 0; c < 128; c++) {
               fbmem = (u_char *) FBBASE +
                       (ip->fonty + (c / ip->cpl) * ip->ftheight) *
                       ip->fbwidth;
               fbmem += ip->fontx + (c % ip->cpl) * ip->ftwidth;
               for (l = 0; l < ip->ftheight; l++) {
                       bn = 7;
                       for (b = 0; b < ip->ftwidth; b++) {
                               if ((1 << bn) & *dp)
                                       *fbmem++ = 1;
                               else
                                       *fbmem++ = 0;
                               if (--bn < 0) {
                                       bn = 7;
                                       dp += 2;
                               }
                       }
                       if (bn < 7)
                               dp += 2;
                       fbmem -= ip->ftwidth;
                       fbmem += ip->fbwidth;
               }
       }

}
#endif