usr/src/sys/hp300/dev/ite_rb.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 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 $Hdr: ite_rb.c 1.16 91/01/21$
 *
 *      @(#)ite_rb.c    7.5 (Berkeley) 5/7/91
 */

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

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

#include "itevar.h"
#include "itereg.h"
#include "grf_rbreg.h"

#include "machine/cpu.h"

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

#define REGBASE         ((struct rboxfb *)(ip->regbase))
#define WINDOWMOVER     rbox_windowmove

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

        /* XXX */
        if (ip->regbase == 0) {
                struct grf_softc *gp = &grf_softc[ip - ite_softc];
                ip->regbase = gp->g_regkva;
                ip->fbbase = gp->g_fbkva;
        }

        rb_waitbusy(REGADDR);

        REGBASE->reset = 0x39;
        DELAY(1000);

        REGBASE->interrupt = 0x04;
        REGBASE->display_enable = 0x01;
        REGBASE->video_enable = 0x01;
        REGBASE->drive = 0x01;
        REGBASE->vdrive = 0x0;

        ite_devinfo(ip);

        REGBASE->opwen = 0xFF;

        /*
         * Clear the framebuffer.
         */
        rbox_windowmove(ip, 0, 0, 0, 0, ip->fbheight, ip->fbwidth, RR_CLEAR);
        rb_waitbusy(REGADDR);

        for(i = 0; i < 16; i++) {
                *(REGADDR + 0x63c3 + i*4) = 0x0;
                *(REGADDR + 0x6403 + i*4) = 0x0;
                *(REGADDR + 0x6803 + i*4) = 0x0;
                *(REGADDR + 0x6c03 + i*4) = 0x0;
                *(REGADDR + 0x73c3 + i*4) = 0x0;
                *(REGADDR + 0x7403 + i*4) = 0x0;
                *(REGADDR + 0x7803 + i*4) = 0x0;
                *(REGADDR + 0x7c03 + i*4) = 0x0;
        }

        REGBASE->rep_rule = 0x33;

        /*
         * I cannot figure out how to make the blink planes stop. So, we
         * must set both colormaps so that when the planes blink, and
         * the secondary colormap is active, we still get text.
         */
        CM1RED[0x00].value = 0x00;
        CM1GRN[0x00].value = 0x00;
        CM1BLU[0x00].value = 0x00;
        CM1RED[0x01].value = 0xFF;
        CM1GRN[0x01].value = 0xFF;
        CM1BLU[0x01].value = 0xFF;

        CM2RED[0x00].value = 0x00;
        CM2GRN[0x00].value = 0x00;
        CM2BLU[0x00].value = 0x00;
        CM2RED[0x01].value = 0xFF;
        CM2GRN[0x01].value = 0xFF;
        CM2BLU[0x01].value = 0xFF;

        REGBASE->blink = 0x00;
        REGBASE->write_enable = 0x01;
        REGBASE->opwen = 0x00;

        ite_fontinit(ip);

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

rbox_deinit(ip)
        struct ite_softc *ip;
{
        rbox_windowmove(ip, 0, 0, 0, 0, ip->fbheight, ip->fbwidth, RR_CLEAR);
        rb_waitbusy(REGADDR);

        ip->flags &= ~ITE_INITED;
}

rbox_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);

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

rbox_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)
}

rbox_clear(ip, sy, sx, h, w)
        struct ite_softc *ip;
        register int sy, sx, h, w;
{
        rbox_windowmove(ip, sy * ip->ftheight, sx * ip->ftwidth,
                        sy * ip->ftheight, sx * ip->ftwidth,
                        h  * ip->ftheight, w  * ip->ftwidth,
                        RR_CLEAR);
}

rbox_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;

        rbox_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;
        }

        rbox_windowmove(ip, sy * ip->ftheight, sx * ip->ftwidth,
                        dy * ip->ftheight, dx * ip->ftwidth,
                        height * ip->ftheight,
                        width  * ip->ftwidth, RR_COPY);
}

rbox_windowmove(ip, sy, sx, dy, dx, h, w, func)
        struct ite_softc *ip;
        int sy, sx, dy, dx, h, w, func;
{
        register struct rboxfb *rp = REGBASE;
        if (h == 0 || w == 0)
                return;

        rb_waitbusy(REGADDR);
        rp->rep_rule = func << 4 | func;
        rp->source_y = sy;
        rp->source_x = sx;
        rp->dest_y = dy;
        rp->dest_x = dx;
        rp->wheight = h;
        rp->wwidth  = w;
        rp->wmove = 1;
}
#endif