usr/src/sys/hp300/dev/ite_dv.c

/*
 * Copyright (c) 1988 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.
 *
 * 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 $Hdr: ite_dv.c 1.10 93/06/25$
 *
 *      @(#)ite_dv.c    8.1 (Berkeley) 7/8/93
 */

#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 <hp/dev/itevar.h>
#include <hp/dev/itereg.h>
#include <hp300/dev/grf_dvreg.h>

#include <machine/cpu.h>

/* XXX */
#include <hp/dev/grfioctl.h>
#include <hp/dev/grfvar.h>

#define REGBASE         ((struct dvboxfb *)(ip->regbase))
#define WINDOWMOVER     dvbox_windowmove

dvbox_init(ip)
        register struct ite_softc *ip;
{
        int i;

        /* XXX */
        if (ip->regbase == 0) {
                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;
                /*
                 * XXX some displays (e.g. the davinci) appear
                 * to return a display height greater than the
                 * returned FB height.  Guess we should go back
                 * to getting the display dimensions from the
                 * fontrom...
                 */
                if (ip->dwidth > ip->fbwidth)
                        ip->dwidth = ip->fbwidth;
                if (ip->dheight > ip->fbheight)
                        ip->dheight = ip->fbheight;
        }

        dv_reset(ip->regbase);

        /*
         * 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(100);

        /*
         * 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(ip->regbase);

        ite_fontinfo(ip);
        ite_fontinit(ip);

        /*
         * Clear the (visible) framebuffer.
         */
        dvbox_windowmove(ip, 0, 0, 0, 0, ip->dheight, ip->dwidth, RR_CLEAR);
        db_waitbusy(ip->regbase);

        /*
         * Stash the inverted cursor.
         */
        dvbox_windowmove(ip, charY(ip, ' '), charX(ip, ' '),
                         ip->cblanky, ip->cblankx, ip->ftheight,
                         ip->ftwidth, RR_COPYINVERTED);
}

dvbox_deinit(ip)
        register struct ite_softc *ip;
{
        dvbox_windowmove(ip, 0, 0, 0, 0, ip->fbheight, ip->fbwidth, RR_CLEAR);
        db_waitbusy(ip->regbase);

        ip->flags &= ~ITE_INITED;
}

dvbox_putc(ip, c, dy, dx, mode)
        register struct ite_softc *ip;
        register int dy, dx;
        int c, mode;
{
        register int wrr = ((mode == ATTR_INV) ? RR_COPYINVERTED : RR_COPY);

        dvbox_windowmove(ip, charY(ip, c), charX(ip, c),
                         dy * ip->ftheight, dx * ip->ftwidth,
                         ip->ftheight, ip->ftwidth, wrr);
}

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;
        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;
        }

        dvbox_windowmove(ip, sy * ip->ftheight, sx * ip->ftwidth,
                         dy * ip->ftheight, dx * ip->ftwidth,
                         height * ip->ftheight,
                         width  * 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(ip->regbase);
        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;
}
#endif