BSD-SCCS END release

[unix-history] / usr / src / sys / hp300 / dev / ite_tc.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 $Hdr: ite_tc.c 1.27 92/12/20$
*
*      @(#)ite_tc.c    8.1 (Berkeley) %G%
*/

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

#include <machine/cpu.h>

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

#define REGBASE         ((struct tcboxfb *)(ip->regbase))
#define WINDOWMOVER     topcat_windowmove

topcat_init(ip)
       register struct ite_softc *ip;
{
       /* XXX */
       if (ip->regbase == NULL) {
               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;
       }

       /*
        * Catseye looks a lot like a topcat, but not completely.
        * So, we set some bits to make it work.
        */
       if (REGBASE->fbid != GID_TOPCAT) {
               while ((REGBASE->catseye_status & 1))
                       ;
               REGBASE->catseye_status = 0x0;
               REGBASE->vb_select      = 0x0;
               REGBASE->tcntrl         = 0x0;
               REGBASE->acntrl         = 0x0;
               REGBASE->pncntrl        = 0x0;
               REGBASE->rug_cmdstat    = 0x90;
       }

       /*
        * Determine the number of planes by writing to the first frame
        * buffer display location, then reading it back. 
        */
       REGBASE->wen = ~0;
       REGBASE->fben = ~0;
       REGBASE->prr = RR_COPY;
       *FBBASE = 0xFF;
       ip->planemask = *FBBASE;

       /*
        * Enable reading/writing of all the planes.
        */
       REGBASE->fben = ip->planemask;
       REGBASE->wen  = ip->planemask;
       REGBASE->ren  = ip->planemask;
       REGBASE->prr  = RR_COPY;

       ite_fontinfo(ip);

       /*
        * Clear the framebuffer on all planes.
        */
       topcat_windowmove(ip, 0, 0, 0, 0, ip->fbheight, ip->fbwidth, RR_CLEAR);
       tc_waitbusy(ip->regbase, ip->planemask);

       ite_fontinit(ip);

       /*
        * Initialize color map for color displays
        */
       if (ip->planemask != 1) {
               tc_waitbusy(ip->regbase, ip->planemask);
               REGBASE->nblank = 0x01;

               tccm_waitbusy(ip->regbase);
               REGBASE->rdata  = 0x0;
               REGBASE->gdata  = 0x0;
               REGBASE->bdata  = 0x0;
               REGBASE->cindex = 0xFF;
               REGBASE->strobe = 0xFF;

               DELAY(100);
               tccm_waitbusy(ip->regbase);
               REGBASE->rdata  = 0x0;
               REGBASE->gdata  = 0x0;
               REGBASE->bdata  = 0x0;
               REGBASE->cindex = 0x0;

               DELAY(100);
               tccm_waitbusy(ip->regbase);
               REGBASE->rdata  = 0xFF;
               REGBASE->gdata  = 0xFF;
               REGBASE->bdata  = 0xFF;
               REGBASE->cindex = 0xFE;
               REGBASE->strobe = 0xFF;

               DELAY(100);
               tccm_waitbusy(ip->regbase);
               REGBASE->rdata  = 0x0;
               REGBASE->gdata  = 0x0;
               REGBASE->bdata  = 0x0;
               REGBASE->cindex = 0x0;
       }

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

topcat_deinit(ip)
       register struct ite_softc *ip;
{
       topcat_windowmove(ip, 0, 0, 0, 0, ip->fbheight, ip->fbwidth, RR_CLEAR);
       tc_waitbusy(ip->regbase, ip->planemask);

       REGBASE->nblank = ~0;
       ip->flags &= ~ITE_INITED;
}

topcat_putc(ip, c, dy, dx, mode)
       register struct ite_softc *ip;
       int c, dy, dx, mode;
{
       int wmrr = ((mode == ATTR_INV) ? RR_COPYINVERTED : RR_COPY);
       
       topcat_windowmove(ip, charY(ip, c), charX(ip, c),
                         dy * ip->ftheight, dx * ip->ftwidth,
                         ip->ftheight, ip->ftwidth, wmrr);
}

topcat_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)
}

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

topcat_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;
       }               

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

topcat_windowmove(ip, sy, sx, dy, dx, h, w, func)
       struct ite_softc *ip;
       int sy, sx, dy, dx, h, w, func;
{
       register struct tcboxfb *rp = REGBASE;
       
       if (h == 0 || w == 0)
               return;
       tc_waitbusy(ip->regbase, ip->planemask);
       rp->wmrr     = 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    = ip->planemask;
}
#endif