merge in hp300 support from Utah

[unix-history] / usr / src / sys / hp300 / stand / ite_gb.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.
*
* %sccs.include.redist.c%
*
* from: Utah $Hdr: ite_gb.c 1.8 89/02/23$
*
*      @(#)ite_gb.c    7.1 (Berkeley) %G%
*/

#include "samachdep.h"

#ifdef ITECONSOLE

#include "param.h"

#include "../hpdev/itevar.h"
#include "../hpdev/itereg.h"
#include "../hpdev/grfvar.h"
#include "../hpdev/grf_gbreg.h"

#define REGBASE         ((struct gboxfb *)(ip->regbase))
#define WINDOWMOVER     gatorbox_windowmove

gatorbox_init(ip)
       register struct ite_softc *ip;
{
       REGBASE->write_protect = 0x0;
       REGBASE->interrupt = 0x4;
       REGBASE->rep_rule = RR_COPY;
       REGBASE->blink1 = 0xff;
       REGBASE->blink2 = 0xff;
       REGBASE->sec_interrupt = 0x01;

       /*
        * Set up the color map entries. We use three entries in the
        * color map. The first, is for black, the second is for
        * white, and the very last entry is for the inverted cursor.
        */
       REGBASE->creg_select = 0x00;
       REGBASE->cmap_red    = 0x00;
       REGBASE->cmap_grn    = 0x00;
       REGBASE->cmap_blu    = 0x00;
       REGBASE->cmap_write  = 0x00;
       gbcm_waitbusy(REGADDR);
       
       REGBASE->creg_select = 0x01;
       REGBASE->cmap_red    = 0xFF;
       REGBASE->cmap_grn    = 0xFF;
       REGBASE->cmap_blu    = 0xFF;
       REGBASE->cmap_write  = 0x01;
       gbcm_waitbusy(REGADDR);

       REGBASE->creg_select = 0xFF;
       REGBASE->cmap_red    = 0xFF;
       REGBASE->cmap_grn    = 0xFF;
       REGBASE->cmap_blu    = 0xFF;
       REGBASE->cmap_write  = 0x01;
       gbcm_waitbusy(REGADDR);

       ite_devinfo(ip);
       ite_fontinit(ip);

       /*
        * Clear the display. This used to be before the font unpacking
        * but it crashes. Figure it out later.
        */
       gatorbox_windowmove(ip, 0, 0, 0, 0, ip->dheight, ip->dwidth, RR_CLEAR);
       tile_mover_waitbusy(REGADDR);

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

gatorbox_putc(ip, c, dy, dx, mode)
       register struct ite_softc *ip;
       register int dy, dx;
       int c, mode;
{
       gatorbox_windowmove(ip, charY(ip, c), charX(ip, c),
                           dy * ip->ftheight, dx * ip->ftwidth,
                           ip->ftheight, ip->ftwidth, RR_COPY);
}

gatorbox_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)
}

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

#define gatorbox_blockmove(ip, sy, sx, dy, dx, h, w) \
       gatorbox_windowmove((ip), \
                           (sy) * ip->ftheight, \
                           (sx) * ip->ftwidth, \
                           (dy) * ip->ftheight, \
                           (dx) * ip->ftwidth, \
                           (h)  * ip->ftheight, \
                           (w)  * ip->ftwidth, \
                           RR_COPY)

gatorbox_scroll(ip, sy, sx, count, dir)
       register struct ite_softc *ip;
       register int sy;
       int dir, sx, count;
{
       register int height, dy, i;
       
       tile_mover_waitbusy(REGADDR);
       REGBASE->write_protect = 0x0;

       gatorbox_cursor(ip, ERASE_CURSOR);

       dy = sy - count;
       height = ip->rows - sy;
       for (i = 0; i < height; i++)
               gatorbox_blockmove(ip, sy + i, sx, dy + i, 0, 1, ip->cols);
}

gatorbox_windowmove(ip, sy, sx, dy, dx, h, w, mask)
    register struct ite_softc *ip;
    int sy, sx, dy, dx, mask;
    register int h, w;
{
       register int src, dest;

       src  = (sy * 1024) + sx;        /* upper left corner in pixels */
       dest = (dy * 1024) + dx;

       tile_mover_waitbusy(REGADDR);
       REGBASE->width = -(w / 4);
       REGBASE->height = -(h / 4);
       if (src < dest)
               REGBASE->rep_rule = MOVE_DOWN_RIGHT|mask;
       else {
               REGBASE->rep_rule = MOVE_UP_LEFT|mask;
               /*
                * Adjust to top of lower right tile of the block.
                */
               src = src + ((h - 4) * 1024) + (w - 4);
               dest= dest + ((h - 4) * 1024) + (w - 4);
       }
       FBBASE[dest] = FBBASE[src];
}
#endif