4.4BSD/usr/src/sys/hp300/dev/ite_hy.c
/*
* Copyright (c) 1991 University of Utah.
* 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 and Mark Davies of the Department of Computer
* Science, Victoria University of Wellington, New Zealand.
*
* 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 $Hdr: ite_hy.c 1.2 92/12/20$
*
* @(#)ite_hy.c 8.1 (Berkeley) 6/10/93
*/
#include "ite.h"
#if NITE > 0
#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/uio.h>
#include <hp300/dev/grf_hyreg.h>
#include <hp/dev/itereg.h>
#include <hp/dev/itevar.h>
#include <machine/cpu.h>
/* XXX */
#include <hp/dev/grfioctl.h>
#include <hp/dev/grfvar.h>
#define REGBASE ((struct hyboxfb *)(ip->regbase))
#define WINDOWMOVER hyper_windowmove
#undef charX
#define charX(ip,c) \
(((c) % (ip)->cpl) * ((((ip)->ftwidth + 7) / 8) * 8) + (ip)->fontx)
hyper_init(ip)
register struct ite_softc *ip;
{
int width;
/* XXX */
if (ip->regbase == NULL) {
struct grf_softc *gp = ip->grf;
ip->regbase = gp->g_regkva;
ip->fbbase = gp->g_fbkva;
ip->fbwidth = gp->g_display.gd_fbwidth;
ip->fbheight = gp->g_display.gd_fbheight;
ip->dwidth = gp->g_display.gd_dwidth;
ip->dheight = gp->g_display.gd_dheight;
}
ite_fontinfo(ip);
width = ((ip->ftwidth + 7) / 8) * 8;
ip->cpl = (ip->fbwidth - ip->dwidth) / width;
ip->cblanky = ip->fonty + ((128 / ip->cpl) +1) * ip->ftheight;
/*
* Clear the framebuffer on all planes.
*/
hyper_windowmove(ip, 0, 0, 0, 0, ip->fbheight, ip->fbwidth, RR_CLEAR);
hyper_ite_fontinit(ip);
REGBASE->nblank = 0x05;
/*
* Stash the inverted cursor.
*/
hyper_windowmove(ip, charY(ip, ' '), charX(ip, ' '),
ip->cblanky, ip->cblankx, ip->ftheight,
ip->ftwidth, RR_COPYINVERTED);
}
hyper_deinit(ip)
register struct ite_softc *ip;
{
hyper_windowmove(ip, 0, 0, 0, 0, ip->fbheight, ip->fbwidth, RR_CLEAR);
REGBASE->nblank = 0x05;
ip->flags &= ~ITE_INITED;
}
hyper_ite_fontinit(ip)
register struct ite_softc *ip;
{
register u_char *fbmem, *dp;
int c, l, b;
int stride, width;
dp = (u_char *)(getword(ip, getword(ip, FONTROM) + FONTADDR) +
ip->regbase) + FONTDATA;
stride = ip->fbwidth >> 3;
width = (ip->ftwidth + 7) / 8;
for (c = 0; c < 128; c++) {
fbmem = (u_char *) FBBASE +
(ip->fonty + (c / ip->cpl) * ip->ftheight) *
stride;
fbmem += (ip->fontx >> 3) + (c % ip->cpl) * width;
for (l = 0; l < ip->ftheight; l++) {
for (b = 0; b < width; b++) {
*fbmem++ = *dp;
dp += 2;
}
fbmem -= width;
fbmem += stride;
}
}
}
hyper_putc(ip, c, dy, dx, mode)
register struct ite_softc *ip;
int c, dy, dx, mode;
{
int wmrr = ((mode == ATTR_INV) ? RR_COPYINVERTED : RR_COPY);
hyper_windowmove(ip, charY(ip, c), charX(ip, c),
dy * ip->ftheight, dx * ip->ftwidth,
ip->ftheight, ip->ftwidth, wmrr);
}
hyper_cursor(ip, flag)
register struct ite_softc *ip;
register int flag;
{
if (flag == DRAW_CURSOR)
draw_cursor(ip)
else if (flag == MOVE_CURSOR) {
erase_cursor(ip)
draw_cursor(ip)
}
else
erase_cursor(ip)
}
hyper_clear(ip, sy, sx, h, w)
register struct ite_softc *ip;
register int sy, sx, h, w;
{
hyper_windowmove(ip, sy * ip->ftheight, sx * ip->ftwidth,
sy * ip->ftheight, sx * ip->ftwidth,
h * ip->ftheight, w * ip->ftwidth,
RR_CLEAR);
}
hyper_scroll(ip, sy, sx, count, dir)
register struct ite_softc *ip;
register int sy, count;
int dir, sx;
{
register int dy;
register int dx = sx;
register int height = 1;
register int width = ip->cols;
if (dir == SCROLL_UP) {
dy = sy - count;
height = ip->rows - sy;
}
else if (dir == SCROLL_DOWN) {
dy = sy + count;
height = ip->rows - dy - 1;
}
else if (dir == SCROLL_RIGHT) {
dy = sy;
dx = sx + count;
width = ip->cols - dx;
}
else {
dy = sy;
dx = sx - count;
width = ip->cols - sx;
}
hyper_windowmove(ip, sy * ip->ftheight, sx * ip->ftwidth,
dy * ip->ftheight, dx * ip->ftwidth,
height * ip->ftheight,
width * ip->ftwidth, RR_COPY);
}
#include <hp300/dev/maskbits.h>
/* NOTE:
* the first element in starttab could be 0xffffffff. making it 0
* lets us deal with a full first word in the middle loop, rather
* than having to do the multiple reads and masks that we'd
* have to do if we thought it was partial.
*/
int starttab[32] =
{
0x00000000,
0x7FFFFFFF,
0x3FFFFFFF,
0x1FFFFFFF,
0x0FFFFFFF,
0x07FFFFFF,
0x03FFFFFF,
0x01FFFFFF,
0x00FFFFFF,
0x007FFFFF,
0x003FFFFF,
0x001FFFFF,
0x000FFFFF,
0x0007FFFF,
0x0003FFFF,
0x0001FFFF,
0x0000FFFF,
0x00007FFF,
0x00003FFF,
0x00001FFF,
0x00000FFF,
0x000007FF,
0x000003FF,
0x000001FF,
0x000000FF,
0x0000007F,
0x0000003F,
0x0000001F,
0x0000000F,
0x00000007,
0x00000003,
0x00000001
};
int endtab[32] =
{
0x00000000,
0x80000000,
0xC0000000,
0xE0000000,
0xF0000000,
0xF8000000,
0xFC000000,
0xFE000000,
0xFF000000,
0xFF800000,
0xFFC00000,
0xFFE00000,
0xFFF00000,
0xFFF80000,
0xFFFC0000,
0xFFFE0000,
0xFFFF0000,
0xFFFF8000,
0xFFFFC000,
0xFFFFE000,
0xFFFFF000,
0xFFFFF800,
0xFFFFFC00,
0xFFFFFE00,
0xFFFFFF00,
0xFFFFFF80,
0xFFFFFFC0,
0xFFFFFFE0,
0xFFFFFFF0,
0xFFFFFFF8,
0xFFFFFFFC,
0xFFFFFFFE
};
hyper_windowmove(ip, sy, sx, dy, dx, h, w, func)
struct ite_softc *ip;
int sy, sx, dy, dx, h, w, func;
{
int width; /* add to get to same position in next line */
unsigned int *psrcLine, *pdstLine;
/* pointers to line with current src and dst */
register unsigned int *psrc; /* pointer to current src longword */
register unsigned int *pdst; /* pointer to current dst longword */
/* following used for looping through a line */
unsigned int startmask, endmask; /* masks for writing ends of dst */
int nlMiddle; /* whole longwords in dst */
register int nl; /* temp copy of nlMiddle */
register unsigned int tmpSrc;
/* place to store full source word */
register int xoffSrc; /* offset (>= 0, < 32) from which to
fetch whole longwords fetched
in src */
int nstart; /* number of ragged bits at start of dst */
int nend; /* number of ragged bits at end of dst */
int srcStartOver; /* pulling nstart bits from src
overflows into the next word? */
if (h == 0 || w == 0)
return;
width = ip->fbwidth >> 5;
if (sy < dy) /* start at last scanline of rectangle */
{
psrcLine = ((unsigned int *) ip->fbbase) + ((sy+h-1) * width);
pdstLine = ((unsigned int *) ip->fbbase) + ((dy+h-1) * width);
width = -width;
}
else /* start at first scanline */
{
psrcLine = ((unsigned int *) ip->fbbase) + (sy * width);
pdstLine = ((unsigned int *) ip->fbbase) + (dy * width);
}
/* x direction doesn't matter for < 1 longword */
if (w <= 32)
{
int srcBit, dstBit; /* bit offset of src and dst */
pdstLine += (dx >> 5);
psrcLine += (sx >> 5);
psrc = psrcLine;
pdst = pdstLine;
srcBit = sx & 0x1f;
dstBit = dx & 0x1f;
while(h--)
{
getandputrop(psrc, srcBit, dstBit, w, pdst, func)
pdst += width;
psrc += width;
}
}
else
{
maskbits(dx, w, startmask, endmask, nlMiddle)
if (startmask)
nstart = 32 - (dx & 0x1f);
else
nstart = 0;
if (endmask)
nend = (dx + w) & 0x1f;
else
nend = 0;
xoffSrc = ((sx & 0x1f) + nstart) & 0x1f;
srcStartOver = ((sx & 0x1f) + nstart) > 31;
if (sx >= dx) /* move left to right */
{
pdstLine += (dx >> 5);
psrcLine += (sx >> 5);
while (h--)
{
psrc = psrcLine;
pdst = pdstLine;
if (startmask)
{
getandputrop(psrc, (sx & 0x1f),
(dx & 0x1f), nstart, pdst, func)
pdst++;
if (srcStartOver)
psrc++;
}
/* special case for aligned operations */
if (xoffSrc == 0)
{
nl = nlMiddle;
while (nl--)
{
DoRop (*pdst, func, *psrc++, *pdst);
pdst++;
}
}
else
{
nl = nlMiddle + 1;
while (--nl)
{
getunalignedword (psrc, xoffSrc, tmpSrc)
DoRop (*pdst, func, tmpSrc, *pdst);
pdst++;
psrc++;
}
}
if (endmask)
{
getandputrop0(psrc, xoffSrc, nend, pdst, func);
}
pdstLine += width;
psrcLine += width;
}
}
else /* move right to left */
{
pdstLine += (dx+w >> 5);
psrcLine += (sx+w >> 5);
/* if fetch of last partial bits from source crosses
a longword boundary, start at the previous longword
*/
if (xoffSrc + nend >= 32)
--psrcLine;
while (h--)
{
psrc = psrcLine;
pdst = pdstLine;
if (endmask)
{
getandputrop0(psrc, xoffSrc, nend, pdst, func);
}
nl = nlMiddle + 1;
while (--nl)
{
--psrc;
--pdst;
getunalignedword(psrc, xoffSrc, tmpSrc)
DoRop(*pdst, func, tmpSrc, *pdst);
}
if (startmask)
{
if (srcStartOver)
--psrc;
--pdst;
getandputrop(psrc, (sx & 0x1f),
(dx & 0x1f), nstart, pdst, func)
}
pdstLine += width;
psrcLine += width;
}
} /* move right to left */
}
}
#endif