usr/src/sys/hpdev/ite_dv.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 is only permitted until one year after the first shipment
 * of 4.4BSD by the Regents.  Otherwise, redistribution and use in source and
 * binary forms are permitted provided that: (1) source distributions retain
 * this entire copyright notice and comment, and (2) distributions including
 * binaries display the following acknowledgement:  This product includes
 * software developed by the University of California, Berkeley and its
 * contributors'' in the documentation or other materials provided with the
 * distribution and in all advertising materials mentioning features or use
 * of this software.  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 AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 *
 * from: Utah $Hdr: ite_dv.c 1.5 89/04/11$
 *
 *      @(#)ite_dv.c    7.1 (Berkeley) 5/8/90
 */

#include "ite.h"
#if NITE > 0

#include "param.h"
#include "conf.h"
#include "user.h"
#include "proc.h"
#include "ioctl.h"
#include "tty.h"
#include "systm.h"
#include "uio.h"

#include "itevar.h"
#include "itereg.h"
#include "grf_dvreg.h"

#include "machine/cpu.h"

/* XXX */
#include "grfioctl.h"
#include "grfvar.h"

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

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

        /* XXX */
        if (ip->regbase == 0) {
                struct grfinfo *gi = &grf_softc[ip - ite_softc].g_display;
                ip->regbase = IOV(gi->gd_regaddr);
                ip->fbbase = IOV(gi->gd_fbaddr);
        }

        dv_reset(REGADDR);

        /*
         * 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(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);
}

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

        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;

        dvbox_cursor(ip, ERASE_CURSOR);

        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(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;
}
#endif