4.4BSD snapshot (revision 8.1); add 1993 to copyright

[unix-history] / usr / src / sys / hp300 / stand / ite_rb.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.
*
* %sccs.include.redist.c%
*
* from: Utah $Hdr: ite_rb.c 1.6 92/01/20$
*
*      @(#)ite_rb.c    8.1 (Berkeley) %G%
*/

#include <hp300/stand/samachdep.h>

#ifdef ITECONSOLE

#include <sys/param.h>
#include <hp/dev/itevar.h>
#include <hp/dev/itereg.h>

#include <hp300/dev/grf_rbreg.h>

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

rbox_init(ip)
       struct ite_softc *ip;
{
       int i;
       
       rb_waitbusy(ip->regbase);
       DELAY(3000);

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

       ite_fontinfo(ip);
       
       REGBASE->opwen = 0xFF;

       /*
        * Clear the framebuffer.
        */
       rbox_windowmove(ip, 0, 0, 0, 0, ip->fbheight, ip->fbwidth, RR_CLEAR);
       rb_waitbusy(ip->regbase);
       
       for(i = 0; i < 16; i++) {
               *(ip->regbase + 0x63c3 + i*4) = 0x0;
               *(ip->regbase + 0x6403 + i*4) = 0x0;
               *(ip->regbase + 0x6803 + i*4) = 0x0;
               *(ip->regbase + 0x6c03 + i*4) = 0x0;
               *(ip->regbase + 0x73c3 + i*4) = 0x0;
               *(ip->regbase + 0x7403 + i*4) = 0x0;
               *(ip->regbase + 0x7803 + i*4) = 0x0;
               *(ip->regbase + 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_putc(ip, c, dy, dx, mode)
       register struct ite_softc *ip;
       register int dy, dx;
       int c, mode;
{
       rbox_windowmove(ip, charY(ip, c), charX(ip, c),
                       dy * ip->ftheight, dx * ip->ftwidth,
                       ip->ftheight, ip->ftwidth, RR_COPY);
}

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 = sy - count;
       register int height = ip->rows - sy;

       rbox_cursor(ip, ERASE_CURSOR);

       rbox_windowmove(ip, sy * ip->ftheight, sx * ip->ftwidth,
                       dy * ip->ftheight, sx * ip->ftwidth,
                       height * ip->ftheight,
                       ip->cols * 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(ip->regbase);
       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