NetBSD/sys/arch/amiga/dev/ite_subr.c

138 lines
4.2 KiB
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