254 lines
6.3 KiB
C
254 lines
6.3 KiB
C
/*
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* Copyright (c) 1988 University of Utah.
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* Copyright (c) 1990 The Regents of the University of California.
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* 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_dv.c 1.1 89/02/28
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* from: @(#)ite_dv.c 7.2 (Berkeley) 12/16/90
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* $Id: ite_dv.c,v 1.3 1993/08/01 19:25:14 mycroft Exp $
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*/
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#include "samachdep.h"
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#ifdef ITECONSOLE
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#include "sys/param.h"
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#include "../dev/itevar.h"
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#include "../dev/itereg.h"
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#include "../dev/grfvar.h"
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#include "../dev/grf_dvreg.h"
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#define REGBASE ((struct dvboxfb *)(ip->regbase))
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#define WINDOWMOVER dvbox_windowmove
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dvbox_init(ip)
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struct ite_softc *ip;
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{
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int i;
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dv_reset(REGADDR);
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DELAY(4000);
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/*
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* Turn on frame buffer, turn on overlay planes, set replacement
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* rule, enable top overlay plane writes for ite, disable all frame
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* buffer planes, set byte per pixel, and display frame buffer 0.
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* Lastly, turn on the box.
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*/
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REGBASE->interrupt = 0x04;
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REGBASE->drive = 0x10;
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REGBASE->rep_rule = RR_COPY << 4 | RR_COPY;
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REGBASE->opwen = 0x01;
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REGBASE->fbwen = 0x0;
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REGBASE->fold = 0x01;
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REGBASE->vdrive = 0x0;
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REGBASE->dispen = 0x01;
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/*
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* Video enable top overlay plane.
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*/
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REGBASE->opvenp = 0x01;
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REGBASE->opvens = 0x01;
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/*
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* Make sure that overlay planes override frame buffer planes.
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*/
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REGBASE->ovly0p = 0x0;
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REGBASE->ovly0s = 0x0;
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REGBASE->ovly1p = 0x0;
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REGBASE->ovly1s = 0x0;
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REGBASE->fv_trig = 0x1;
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DELAY(400);
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/*
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* Setup the overlay colormaps. Need to set the 0,1 (black/white)
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* color for both banks.
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*/
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for (i = 0; i <= 1; i++) {
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REGBASE->cmapbank = i;
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REGBASE->rgb[0].red = 0x00;
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REGBASE->rgb[0].green = 0x00;
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REGBASE->rgb[0].blue = 0x00;
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REGBASE->rgb[1].red = 0xFF;
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REGBASE->rgb[1].green = 0xFF;
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REGBASE->rgb[1].blue = 0xFF;
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}
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REGBASE->cmapbank = 0;
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db_waitbusy(REGADDR);
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ite_devinfo(ip);
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ite_fontinit(ip);
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/*
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* Clear the (visible) framebuffer.
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*/
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dvbox_windowmove(ip, 0, 0, 0, 0, ip->dheight, ip->dwidth, RR_CLEAR);
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db_waitbusy(REGADDR);
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/*
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* Stash the inverted cursor.
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*/
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dvbox_windowmove(ip, charY(ip, ' '), charX(ip, ' '),
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ip->cblanky, ip->cblankx, ip->ftheight,
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ip->ftwidth, RR_COPYINVERTED);
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db_waitbusy(REGADDR);
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}
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dvbox_putc(ip, c, dy, dx, mode)
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register struct ite_softc *ip;
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register int dy, dx;
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int c, mode;
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{
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dvbox_windowmove(ip, charY(ip, c), charX(ip, c),
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dy * ip->ftheight, dx * ip->ftwidth,
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ip->ftheight, ip->ftwidth, RR_COPY);
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}
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dvbox_cursor(ip, flag)
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register struct ite_softc *ip;
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register int flag;
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{
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if (flag == DRAW_CURSOR)
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draw_cursor(ip)
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else if (flag == MOVE_CURSOR) {
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erase_cursor(ip)
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draw_cursor(ip)
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}
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else
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erase_cursor(ip)
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}
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dvbox_clear(ip, sy, sx, h, w)
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struct ite_softc *ip;
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register int sy, sx, h, w;
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{
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dvbox_windowmove(ip, sy * ip->ftheight, sx * ip->ftwidth,
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sy * ip->ftheight, sx * ip->ftwidth,
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h * ip->ftheight, w * ip->ftwidth,
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RR_CLEAR);
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}
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dvbox_scroll(ip, sy, sx, count, dir)
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register struct ite_softc *ip;
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register int sy, count;
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int dir, sx;
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{
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register int dy = sy - count;
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register int height = ip->rows - sy;
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dvbox_cursor(ip, ERASE_CURSOR);
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dvbox_windowmove(ip, sy * ip->ftheight, sx * ip->ftwidth,
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dy * ip->ftheight, sx * ip->ftwidth,
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height * ip->ftheight,
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ip->cols * ip->ftwidth, RR_COPY);
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}
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dvbox_windowmove(ip, sy, sx, dy, dx, h, w, func)
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struct ite_softc *ip;
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int sy, sx, dy, dx, h, w, func;
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{
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register struct dvboxfb *dp = REGBASE;
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if (h == 0 || w == 0)
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return;
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db_waitbusy(REGADDR);
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dp->rep_rule = func << 4 | func;
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dp->source_y = sy;
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dp->source_x = sx;
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dp->dest_y = dy;
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dp->dest_x = dx;
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dp->wheight = h;
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dp->wwidth = w;
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dp->wmove = 1;
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}
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dv_reset(dbp)
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register struct dvboxfb *dbp;
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{
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dbp->reset = 0x80;
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DELAY(400);
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dbp->interrupt = 0x04;
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dbp->en_scan = 0x01;
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dbp->fbwen = ~0;
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dbp->opwen = ~0;
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dbp->fold = 0x01;
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dbp->drive = 0x01;
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dbp->rep_rule = 0x33;
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dbp->alt_rr = 0x33;
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dbp->zrr = 0x33;
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dbp->fbvenp = 0xFF;
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dbp->dispen = 0x01;
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dbp->fbvens = 0x0;
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dbp->fv_trig = 0x01;
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DELAY(400);
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dbp->vdrive = 0x0;
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dbp->zconfig = 0x0;
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while (dbp->wbusy & 0x01)
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DELAY(400);
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/*
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* Start of missing ROM code.
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*/
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dbp->cmapbank = 0;
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dbp->red0 = 0;
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dbp->red1 = 0;
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dbp->green0 = 0;
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dbp->green1 = 0;
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dbp->blue0 = 0;
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dbp->blue1 = 0;
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dbp->panxh = 0;
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dbp->panxl = 0;
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dbp->panyh = 0;
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dbp->panyl = 0;
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dbp->zoom = 0;
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dbp->cdwidth = 0x50;
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dbp->chstart = 0x52;
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dbp->cvwidth = 0x22;
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dbp->pz_trig = 1;
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/*
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* End of missing ROM code.
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*/
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}
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#endif
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