153 lines
4.4 KiB
C
153 lines
4.4 KiB
C
/* $NetBSD: ite_subr.c,v 1.8 1997/03/31 07:37:26 scottr Exp $ */
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/*
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* Copyright (c) 1988 University of Utah.
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* Copyright (c) 1990, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* the Systems Programming Group of the University of Utah Computer
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* Science Department.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: Utah $Hdr: ite_subr.c 1.4 92/01/21$
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*
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* @(#)ite_subr.c 8.2 (Berkeley) 1/12/94
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*/
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#include <sys/param.h>
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#include <sys/conf.h>
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#include <sys/proc.h>
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#include <sys/ioctl.h>
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#include <sys/tty.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <hp300/dev/itevar.h>
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#include <hp300/dev/itereg.h>
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#include <machine/cpu.h>
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void
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ite_fontinfo(ip)
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struct ite_data *ip;
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{
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u_long fontaddr = getword(ip, getword(ip, FONTROM) + FONTADDR);
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ip->ftheight = getbyte(ip, fontaddr + FONTHEIGHT);
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ip->ftwidth = getbyte(ip, fontaddr + FONTWIDTH);
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ip->rows = ip->dheight / ip->ftheight;
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ip->cols = ip->dwidth / ip->ftwidth;
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if (ip->fbwidth > ip->dwidth) {
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/*
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* Stuff goes to right of display.
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*/
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ip->fontx = ip->dwidth;
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ip->fonty = 0;
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ip->cpl = (ip->fbwidth - ip->dwidth) / ip->ftwidth;
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ip->cblankx = ip->dwidth;
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ip->cblanky = ip->fonty + ((128 / ip->cpl) +1) * ip->ftheight;
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}
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else {
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/*
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* Stuff goes below the display.
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*/
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ip->fontx = 0;
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ip->fonty = ip->dheight;
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ip->cpl = ip->fbwidth / ip->ftwidth;
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ip->cblankx = 0;
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ip->cblanky = ip->fonty + ((128 / ip->cpl) + 1) * ip->ftheight;
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}
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}
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void
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ite_fontinit(ip)
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struct ite_data *ip;
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{
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int bytewidth = (((ip->ftwidth - 1) / 8) + 1);
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int glyphsize = bytewidth * ip->ftheight;
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u_char fontbuf[500]; /* XXX malloc not initialize yet */
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u_char *dp, *fbmem;
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int c, i, romp;
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romp = getword(ip, getword(ip, FONTROM) + FONTADDR) + FONTDATA;
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for (c = 0; c < 128; c++) {
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fbmem = (u_char *)
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(FBBASE +
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(ip->fonty + (c / ip->cpl) * ip->ftheight) * ip->fbwidth +
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(ip->fontx + (c % ip->cpl) * ip->ftwidth));
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dp = fontbuf;
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for (i = 0; i < glyphsize; i++) {
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*dp++ = getbyte(ip, romp);
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romp += 2;
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}
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writeglyph(ip, fbmem, fontbuf);
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}
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}
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/*
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* Display independent versions of the readbyte and writeglyph routines.
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*/
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u_char
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ite_readbyte(ip, disp)
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struct ite_data *ip;
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int disp;
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{
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return((u_char) *(((u_char *)ip->regbase) + disp));
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}
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void
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ite_writeglyph(ip, fbmem, glyphp)
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struct ite_data *ip;
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u_char *fbmem, *glyphp;
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{
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int bn;
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int l, b;
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for (l = 0; l < ip->ftheight; l++) {
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bn = 7;
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for (b = 0; b < ip->ftwidth; b++) {
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if ((1 << bn) & *glyphp)
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*fbmem++ = 1;
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else
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*fbmem++ = 0;
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if (--bn < 0) {
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bn = 7;
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glyphp++;
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}
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}
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if (bn < 7)
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glyphp++;
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fbmem -= ip->ftwidth;
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fbmem += ip->fbwidth;
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}
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}
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