NetBSD-5.0.2/sys/arch/hp300/dev/ite_subr.c
/* $NetBSD: ite_subr.c,v 1.14 2005/12/11 12:17:14 christos Exp $ */
/*
* Copyright (c) 1990, 1993
* 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. 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 $Hdr: ite_subr.c 1.4 92/01/21$
*
* @(#)ite_subr.c 8.2 (Berkeley) 1/12/94
*/
/*
* Copyright (c) 1988 University of Utah.
*
* 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 $Hdr: ite_subr.c 1.4 92/01/21$
*
* @(#)ite_subr.c 8.2 (Berkeley) 1/12/94
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: ite_subr.c,v 1.14 2005/12/11 12:17:14 christos Exp $");
#include <sys/param.h>
#include <sys/conf.h>
#include <sys/proc.h>
#include <sys/ioctl.h>
#include <sys/tty.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <hp300/dev/itevar.h>
#include <hp300/dev/itereg.h>
#include <machine/cpu.h>
void
ite_fontinfo(struct ite_data *ip)
{
u_long fontaddr = getword(ip, getword(ip, FONTROM) + FONTADDR);
ip->ftheight = getbyte(ip, fontaddr + FONTHEIGHT);
ip->ftwidth = getbyte(ip, fontaddr + FONTWIDTH);
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;
}
}
void
ite_fontinit(struct ite_data *ip)
{
int bytewidth = (((ip->ftwidth - 1) / 8) + 1);
int glyphsize = bytewidth * ip->ftheight;
u_char fontbuf[500]; /* XXX malloc not initialize yet */
u_char *dp;
volatile u_char *fbmem;
int c, i, romp;
romp = getword(ip, getword(ip, FONTROM) + FONTADDR) + FONTDATA;
for (c = 0; c < 128; c++) {
fbmem = (FBBASE +
(ip->fonty + (c / ip->cpl) * ip->ftheight) * ip->fbwidth +
(ip->fontx + (c % ip->cpl) * ip->ftwidth));
dp = fontbuf;
for (i = 0; i < glyphsize; i++) {
*dp++ = getbyte(ip, romp);
romp += 2;
}
writeglyph(ip, fbmem, fontbuf);
}
}
/*
* Display independent versions of the readbyte and writeglyph routines.
*/
u_char
ite_readbyte(struct ite_data *ip, int disp)
{
return((u_char) *(((u_char *)ip->regbase) + disp));
}
void
ite_writeglyph(struct ite_data *ip, volatile u_char *fbmem, u_char *glyphp)
{
int bn;
int l, b;
for (l = 0; l < ip->ftheight; l++) {
bn = 7;
for (b = 0; b < ip->ftwidth; b++) {
if ((1 << bn) & *glyphp)
*fbmem++ = 1;
else
*fbmem++ = 0;
if (--bn < 0) {
bn = 7;
glyphp++;
}
}
if (bn < 7)
glyphp++;
fbmem -= ip->ftwidth;
fbmem += ip->fbwidth;
}
}