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