text: /*	$OpenBSD: grf_hy.c,v 1.6 1997/04/16 11:56:04 downsj Exp $	*/
  /*	$NetBSD: grf_hy.c,v 1.9 1997/03/31 07:34:16 scottr Exp $	*/
  
  /*
   * Copyright (c) 1996 Jason R. Thorpe.  All rights reserved.
   * Copyright (c) 1991 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 and Mark Davies of the Department of Computer
   * Science, Victoria University of Wellington, New Zealand.
   *
   * 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 $Hdr: grf_hy.c 1.2 93/08/13$
   *
   *	@(#)grf_hy.c	8.4 (Berkeley) 1/12/94
   */
  
  /*
   * Graphics routines for HYPERION frame buffer
   */
  #include <sys/param.h>
  #include <sys/systm.h>
  #include <sys/conf.h>
  #include <sys/device.h>
  #include <sys/errno.h>
  #include <sys/ioctl.h>
  #include <sys/proc.h>
  #include <sys/tty.h>
  #include <sys/uio.h>
  
  #include <machine/autoconf.h>
  #include <machine/cpu.h>
  
  #include <dev/cons.h>
  
  #include <hp300/dev/diovar.h>
  #include <hp300/dev/diodevs.h>
  #include <hp300/dev/intiovar.h>
  
  #include <hp300/dev/grfioctl.h>
  #include <hp300/dev/grfvar.h>
  #include <hp300/dev/grfreg.h>
  #include <hp300/dev/grf_hyreg.h>
  
  #include <hp300/dev/itevar.h>
  #include <hp300/dev/itereg.h>
  
  #include "ite.h"
  
  caddr_t badhyaddr = (caddr_t) -1;
  
  int	hy_init __P((struct grf_data *gp, int, caddr_t));
  int	hy_mode __P((struct grf_data *gp, int, caddr_t));
  void	hyper_ite_fontinit __P((struct ite_data *));
  
  int	hyper_dio_match __P((struct device *, void *, void *));
  void	hyper_dio_attach __P((struct device *, struct device *, void *));
  
  int	hyper_console_scan __P((int, caddr_t, void *));
  void	hypercnprobe __P((struct consdev *cp));
  void	hypercninit __P((struct consdev *cp));
  
  struct cfattach hyper_dio_ca = {
  	sizeof(struct grfdev_softc), hyper_dio_match, hyper_dio_attach
  };
  
  struct cfdriver hyper_cd = {
  	NULL, "hyper", DV_DULL
  };
  
  /* Hyperion grf switch */
  struct grfsw hyper_grfsw = {
  	GID_HYPERION, GRFHYPERION, "hyperion", hy_init, hy_mode
  };
  
  #if NITE > 0
  void	hyper_init __P((struct ite_data *));
  void	hyper_deinit __P((struct ite_data *));
  void	hyper_int_fontinit __P((struct ite_data *));
  void	hyper_putc __P((struct ite_data *, int, int, int, int));
  void	hyper_cursor __P((struct ite_data *, int));
  void	hyper_clear __P((struct ite_data *, int, int, int, int));
  void	hyper_scroll __P((struct ite_data *, int, int, int, int));
  void	hyper_windowmove __P((struct ite_data *, int, int, int, int,
  		int, int, int));
  
  /* Hyperion ite switch */
  struct itesw hyper_itesw = {
  	hyper_init, hyper_deinit, hyper_clear, hyper_putc,
  	hyper_cursor, hyper_scroll, ite_readbyte, ite_writeglyph
  };
  #endif /* NITE > 0 */
  
  int
  hyper_dio_match(parent, match, aux)
  	struct device *parent;
  	void *match, *aux;
  {
  	struct dio_attach_args *da = aux;
  
  	if (da->da_id == DIO_DEVICE_ID_FRAMEBUFFER &&
  	    da->da_secid == DIO_DEVICE_SECID_HYPERION)
  		return (1);
  
  	return (0);
  }
  
  void
  hyper_dio_attach(parent, self, aux)
  	struct device *parent, *self;
  	void *aux;
  {
  	struct grfdev_softc *sc = (struct grfdev_softc *)self;
  	struct dio_attach_args *da = aux;
  	caddr_t grf;
  
  	sc->sc_scode = da->da_scode;
  	if (sc->sc_scode == conscode)
  		grf = conaddr;
  	else {
  		grf = iomap(dio_scodetopa(sc->sc_scode), da->da_size);
  		if (grf == 0) {
  			printf("%s: can't map framebuffer\n",
  			    sc->sc_dev.dv_xname);
  			return;
  		}
  	}
  
  #if NITE > 0
  	grfdev_attach(sc, hy_init, grf, &hyper_grfsw, &hyper_itesw);
  #else
  	grfdev_attach(sc, hy_init, grf, &hyper_grfsw, NULL);
  #endif	/* NITE > 0 */
  }
  
  /*
   * Initialize hardware.
   * Must fill in the grfinfo structure in g_softc.
   * Returns 0 if hardware not present, non-zero ow.
   */
  int
  hy_init(gp, scode, addr)
  	struct grf_data *gp;
  	int scode;
  	caddr_t addr;
  {
  	struct hyboxfb *hy = (struct hyboxfb *) addr;
  	struct grfinfo *gi = &gp->g_display;
  	int fboff;
  
  	/*
  	 * If the console has been initialized, and it was us, there's
  	 * no need to repeat this.
  	 */
  	if (consinit_active || (scode != conscode)) {
  		if (ISIIOVA(addr))
  			gi->gd_regaddr = (caddr_t) IIOP(addr);
  		else
  			gi->gd_regaddr = dio_scodetopa(scode);
  		gi->gd_regsize = 0x20000;
  		gi->gd_fbwidth = (hy->fbwmsb << 8) | hy->fbwlsb;
  		gi->gd_fbheight = (hy->fbhmsb << 8) | hy->fbhlsb;
  		gi->gd_fbsize = (gi->gd_fbwidth * gi->gd_fbheight) >> 3;
  		fboff = (hy->fbomsb << 8) | hy->fbolsb;
  		gi->gd_fbaddr = (caddr_t) (*((u_char *)addr + fboff) << 16);
  		if (gi->gd_regaddr >= (caddr_t)DIOIIBASE) {
  			/*
  			 * For DIO II space the fbaddr just computed is
  			 * the offset from the select code base (regaddr)
  			 * of the framebuffer.  Hence it is also implicitly
  			 * the size of the register set.
  			 */
  			gi->gd_regsize = (int) gi->gd_fbaddr;
  			gi->gd_fbaddr += (int) gi->gd_regaddr;
  			gp->g_regkva = addr;
  			gp->g_fbkva = addr + gi->gd_regsize;
  		} else {
  			/*
  			 * For DIO space we need to map the seperate
  			 * framebuffer.
  			 */
  			gp->g_regkva = addr;
  			gp->g_fbkva = iomap(gi->gd_fbaddr, gi->gd_fbsize);
  		}
  		gi->gd_dwidth = (hy->dwmsb << 8) | hy->dwlsb;
  		gi->gd_dheight = (hy->dhmsb << 8) | hy->dhlsb;
  		gi->gd_planes = hy->num_planes;
  		gi->gd_colors = 1 << gi->gd_planes;
  	}
  	return(1);
  }
  
  /*
   * Change the mode of the display.
   * Right now all we can do is grfon/grfoff.
   * Return a UNIX error number or 0 for success.
   * Function may not be needed anymore.
   */
  int
  hy_mode(gp, cmd, data)
  	struct grf_data *gp;
  	int cmd;
  	caddr_t data;
  {
  	int error = 0;
  
  	switch (cmd) {
  	case GM_GRFON:
  	case GM_GRFOFF:
  		break;
  
  	/*
  	 * Remember UVA of mapping for GCDESCRIBE.
  	 * XXX this should be per-process.
  	 */
  	case GM_MAP:
  		gp->g_data = data;
  		break;
  
  	case GM_UNMAP:
  		gp->g_data = 0;
  		break;
  
  #ifdef COMPAT_HPUX
  	case GM_DESCRIBE:
  	{
  		struct grf_fbinfo *fi = (struct grf_fbinfo *)data;
  		struct grfinfo *gi = &gp->g_display;
  		int i;
  
  		/* feed it what HP-UX expects */
  		fi->id = gi->gd_id;
  		fi->mapsize = gi->gd_fbsize;
  		fi->dwidth = gi->gd_dwidth;
  		fi->dlength = gi->gd_dheight;
  		fi->width = gi->gd_fbwidth;
  		fi->length = gi->gd_fbheight;
  		fi->bpp = NBBY;
  		fi->xlen = (fi->width * fi->bpp) / NBBY;
  		fi->npl = gi->gd_planes;
  		fi->bppu = fi->npl;
  		fi->nplbytes = fi->xlen * ((fi->length * fi->bpp) / NBBY);
  		bcopy("A1096A", fi->name, 7);	/* ?? */
  		fi->attr = 0;			/* ?? */
  		/*
  		 * If mapped, return the UVA where mapped.
  		 */
  		if (gp->g_data) {
  			fi->regbase = gp->g_data;
  			fi->fbbase = fi->regbase + gp->g_display.gd_regsize;
  		} else {
  			fi->fbbase = 0;
  			fi->regbase = 0;
  		}
  		for (i = 0; i < 6; i++)
  			fi->regions[i] = 0;
  		break;
  	}
  #endif
  
  	default:
  		error = EINVAL;
  		break;
  	}
  	return(error);
  }
  
  #if NITE > 0
  
  /*
   * Hyperion ite routines
   */
  
  #define REGBASE	    	((struct hyboxfb *)(ip->regbase))
  #define WINDOWMOVER 	hyper_windowmove
  
  #undef charX
  #define	charX(ip,c)	\
  	(((c) % (ip)->cpl) * ((((ip)->ftwidth + 7) / 8) * 8) + (ip)->fontx)
  
  void
  hyper_init(ip)
  	struct ite_data *ip;
  {
  	int width;
  
  	/* XXX */
  	if (ip->regbase == NULL) {
  		struct grf_data *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;
  	}
  
  	ite_fontinfo(ip);
  	width = ((ip->ftwidth + 7) / 8) * 8;
  	ip->cpl      = (ip->fbwidth - ip->dwidth) / width;
  	ip->cblanky  = ip->fonty + ((128 / ip->cpl) +1) * ip->ftheight;
  
  	/*
  	 * Clear the framebuffer on all planes.
  	 */
  	hyper_windowmove(ip, 0, 0, 0, 0, ip->fbheight, ip->fbwidth, RR_CLEAR);
  
  	hyper_ite_fontinit(ip);
  
  	REGBASE->nblank = 0x05;
  
  	/*
  	 * Stash the inverted cursor.
  	 */
  	hyper_windowmove(ip, charY(ip, ' '), charX(ip, ' '),
  			 ip->cblanky, ip->cblankx, ip->ftheight,
  			 ip->ftwidth, RR_COPYINVERTED);
  }
  
  void
  hyper_deinit(ip)
  	struct ite_data *ip;
  {
  	hyper_windowmove(ip, 0, 0, 0, 0, ip->fbheight, ip->fbwidth, RR_CLEAR);
  
  	REGBASE->nblank = 0x05;
     	ip->flags &= ~ITE_INITED;
  }
  
  void
  hyper_ite_fontinit(ip)
  	struct ite_data *ip;
  {
  	u_char *fbmem, *dp;
  	int c, l, b;
  	int stride, width;
  
  	dp = (u_char *)(getword(ip, getword(ip, FONTROM) + FONTADDR) +
  	    ip->regbase) + FONTDATA;
  	stride = ip->fbwidth >> 3;
  	width = (ip->ftwidth + 7) / 8;
  
  	for (c = 0; c < 128; c++) {
  		fbmem = (u_char *) FBBASE +
  			(ip->fonty + (c / ip->cpl) * ip->ftheight) *
  			stride;
  		fbmem += (ip->fontx >> 3) + (c % ip->cpl) * width;
  		for (l = 0; l < ip->ftheight; l++) {
  			for (b = 0; b < width; b++) {
  				*fbmem++ = *dp;
  				dp += 2;
  			}
  			fbmem -= width;
  			fbmem += stride;
  		}
  	}
  }
  
  void
  hyper_putc(ip, c, dy, dx, mode)
  	struct ite_data *ip;
  	int c, dy, dx, mode;
  {
          int wmrr = ((mode == ATTR_INV) ? RR_COPYINVERTED : RR_COPY);
  	
  	hyper_windowmove(ip, charY(ip, c), charX(ip, c),
  			 dy * ip->ftheight, dx * ip->ftwidth,
  			 ip->ftheight, ip->ftwidth, wmrr);
  }
  
  void
  hyper_cursor(ip, flag)
  	struct ite_data *ip;
  	int flag;
  {
  	if (flag == DRAW_CURSOR)
  		draw_cursor(ip)
  	else if (flag == MOVE_CURSOR) {
  		erase_cursor(ip)
  		draw_cursor(ip)
  	}
  	else
  		erase_cursor(ip)
  }
  
  void
  hyper_clear(ip, sy, sx, h, w)
  	struct ite_data *ip;
  	int sy, sx, h, w;
  {
  	hyper_windowmove(ip, sy * ip->ftheight, sx * ip->ftwidth,
  			 sy * ip->ftheight, sx * ip->ftwidth, 
  			 h  * ip->ftheight, w  * ip->ftwidth,
  			 RR_CLEAR);
  }
  
  void
  hyper_scroll(ip, sy, sx, count, dir)
          struct ite_data *ip;
          int sy, count, dir, sx;
  {
  	int dy;
  	int dx = sx;
  	int height = 1;
  	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;
  	}		
  
  	hyper_windowmove(ip, sy * ip->ftheight, sx * ip->ftwidth,
  			 dy * ip->ftheight, dx * ip->ftwidth,
  			 height * ip->ftheight,
  			 width  * ip->ftwidth, RR_COPY);
  }
  
  #include <hp300/dev/maskbits.h>
  
  /* NOTE:
   * the first element in starttab could be 0xffffffff.  making it 0
   * lets us deal with a full first word in the middle loop, rather
   * than having to do the multiple reads and masks that we'd
   * have to do if we thought it was partial.
   */
  int starttab[32] =
      {
  	0x00000000,
  	0x7FFFFFFF,
  	0x3FFFFFFF,
  	0x1FFFFFFF,
  	0x0FFFFFFF,
  	0x07FFFFFF,
  	0x03FFFFFF,
  	0x01FFFFFF,
  	0x00FFFFFF,
  	0x007FFFFF,
  	0x003FFFFF,
  	0x001FFFFF,
  	0x000FFFFF,
  	0x0007FFFF,
  	0x0003FFFF,
  	0x0001FFFF,
  	0x0000FFFF,
  	0x00007FFF,
  	0x00003FFF,
  	0x00001FFF,
  	0x00000FFF,
  	0x000007FF,
  	0x000003FF,
  	0x000001FF,
  	0x000000FF,
  	0x0000007F,
  	0x0000003F,
  	0x0000001F,
  	0x0000000F,
  	0x00000007,
  	0x00000003,
  	0x00000001
      };
  
  int endtab[32] =
      {
  	0x00000000,
  	0x80000000,
  	0xC0000000,
  	0xE0000000,
  	0xF0000000,
  	0xF8000000,
  	0xFC000000,
  	0xFE000000,
  	0xFF000000,
  	0xFF800000,
  	0xFFC00000,
  	0xFFE00000,
  	0xFFF00000,
  	0xFFF80000,
  	0xFFFC0000,
  	0xFFFE0000,
  	0xFFFF0000,
  	0xFFFF8000,
  	0xFFFFC000,
  	0xFFFFE000,
  	0xFFFFF000,
  	0xFFFFF800,
  	0xFFFFFC00,
  	0xFFFFFE00,
  	0xFFFFFF00,
  	0xFFFFFF80,
  	0xFFFFFFC0,
  	0xFFFFFFE0,
  	0xFFFFFFF0,
  	0xFFFFFFF8,
  	0xFFFFFFFC,
  	0xFFFFFFFE
      };
  
  void
  hyper_windowmove(ip, sy, sx, dy, dx, h, w, func)
  	struct ite_data *ip;
  	int sy, sx, dy, dx, h, w, func;
  {
  	int width;		/* add to get to same position in next line */
  
  	unsigned int *psrcLine, *pdstLine;
                                  /* pointers to line with current src and dst */
  	unsigned int *psrc;  /* pointer to current src longword */
  	unsigned int *pdst;  /* pointer to current dst longword */
  
                                  /* following used for looping through a line */
  	unsigned int startmask, endmask;  /* masks for writing ends of dst */
  	int nlMiddle;		/* whole longwords in dst */
  	int nl;	/* temp copy of nlMiddle */
  	unsigned int tmpSrc;
                                  /* place to store full source word */
  	int xoffSrc;	/* offset (>= 0, < 32) from which to
                                     fetch whole longwords fetched
                                     in src */
  	int nstart;		/* number of ragged bits at start of dst */
  	int nend;		/* number of ragged bits at end of dst */
  	int srcStartOver;	/* pulling nstart bits from src
                                     overflows into the next word? */
  
  	if (h == 0 || w == 0)
  		return;
  
  	width = ip->fbwidth >> 5;
  
  	if (sy < dy) /* start at last scanline of rectangle */
  	{
  	    psrcLine = ((unsigned int *) ip->fbbase) + ((sy+h-1) * width);
  	    pdstLine = ((unsigned int *) ip->fbbase) + ((dy+h-1) * width);
  	    width = -width;
  	}
  	else /* start at first scanline */
  	{
  	    psrcLine = ((unsigned int *) ip->fbbase) + (sy * width);
  	    pdstLine = ((unsigned int *) ip->fbbase) + (dy * width);
  	}
  
  	/* x direction doesn't matter for < 1 longword */
  	if (w <= 32)
  	{
  	    int srcBit, dstBit;     /* bit offset of src and dst */
  
  	    pdstLine += (dx >> 5);
  	    psrcLine += (sx >> 5);
  	    psrc = psrcLine;
  	    pdst = pdstLine;
  
  	    srcBit = sx & 0x1f;
  	    dstBit = dx & 0x1f;
  
  	    while(h--)
  	    {
                  getandputrop(psrc, srcBit, dstBit, w, pdst, func)
  	        pdst += width;
  		psrc += width;
  	    }
  	}
  	else
          {
  	    maskbits(dx, w, startmask, endmask, nlMiddle)
  	    if (startmask)
  	      nstart = 32 - (dx & 0x1f);
  	    else
  	      nstart = 0;
  	    if (endmask)
  	      nend = (dx + w) & 0x1f;
  	    else
  	      nend = 0;
  
  	    xoffSrc = ((sx & 0x1f) + nstart) & 0x1f;
  	    srcStartOver = ((sx & 0x1f) + nstart) > 31;
  
  	    if (sx >= dx) /* move left to right */
  	    {
  	        pdstLine += (dx >> 5);
  		psrcLine += (sx >> 5);
  
  		while (h--)
  		{
  		    psrc = psrcLine;
  		    pdst = pdstLine;
  
  		    if (startmask)
  		    {
  			getandputrop(psrc, (sx & 0x1f),
  				     (dx & 0x1f), nstart, pdst, func)
  			    pdst++;
  			if (srcStartOver)
  			    psrc++;
  		    }
  
  		    /* special case for aligned operations */
  		    if (xoffSrc == 0)
  		    {
  			nl = nlMiddle;
  			while (nl--)
  			{
  			    DoRop (*pdst, func, *psrc++, *pdst);
  			    pdst++;
  			}
  		    }
  		    else
  		    {
  			nl = nlMiddle + 1;
  			while (--nl)
  			{
  			    getunalignedword (psrc, xoffSrc, tmpSrc)
  				DoRop (*pdst, func, tmpSrc, *pdst);
  			    pdst++;
  			    psrc++;
  			}
  		    }
  
  		    if (endmask)
  		    {
  			getandputrop0(psrc, xoffSrc, nend, pdst, func);
  		    }
  
  		    pdstLine += width;
  		    psrcLine += width;
  		}
  	    }
  	    else /* move right to left */
  	    {
  		pdstLine += ((dx + w) >> 5);
  		psrcLine += ((sx + w) >> 5);
  		/* if fetch of last partial bits from source crosses
  		   a longword boundary, start at the previous longword
  		   */
  		if (xoffSrc + nend >= 32)
  		    --psrcLine;
  
  		while (h--)
  		{
  		    psrc = psrcLine;
  		    pdst = pdstLine;
  
  		    if (endmask)
  		    {
  			getandputrop0(psrc, xoffSrc, nend, pdst, func);
  		    }
  
  		    nl = nlMiddle + 1;
  		    while (--nl)
  		    {
  			--psrc;
  			--pdst;
  			getunalignedword(psrc, xoffSrc, tmpSrc)
                          DoRop(*pdst, func, tmpSrc, *pdst);
  		    }
  
  		    if (startmask)
  		    {
  			if (srcStartOver)
  			    --psrc;
  			--pdst;
  			getandputrop(psrc, (sx & 0x1f),
  				     (dx & 0x1f), nstart, pdst, func)
                      }
  
  		    pdstLine += width;
  		    psrcLine += width;
  		}
  	    } /* move right to left */
  	}
  }
  
  /*
   * Hyperion console support
   */
  
  int
  hyper_console_scan(scode, va, arg)
  	int scode;
  	caddr_t va;
  	void *arg;
  {
  	struct grfreg *grf = (struct grfreg *)va;
  	struct consdev *cp = arg;
  	u_char *dioiidev;
  	int force = 0, pri;
  
  	if ((grf->gr_id == GRFHWID) && (grf->gr_id2 == GID_HYPERION)) {
  		pri = CN_NORMAL;
  
  #ifdef CONSCODE
  		/*
  		 * Raise our prioity, if appropriate.
  		 */
  		if (scode == CONSCODE) {
  			pri = CN_REMOTE;
  			force = conforced = 1;
  		}
  #endif
  
  		/* Only raise priority. */
  		if (pri > cp->cn_pri)
  			cp->cn_pri = pri;
  
  		/*
  		 * If our priority is higher than the currently-remembered
  		 * console, stash our priority.
  		 */
  		if (((cn_tab == NULL) || (cp->cn_pri > cn_tab->cn_pri))
  		    || force) {
  			cn_tab = cp;
  			if (scode >= 132) {
  				dioiidev = (u_char *)va;
  				return ((dioiidev[0x101] + 1) * 0x100000);
  			}
  			return (DIOCSIZE);
  		}
  	}
  	return (0);
  }
  
  void
  hypercnprobe(cp)
  	struct consdev *cp;
  {
  	int maj;
  	caddr_t va;
  	struct grfreg *grf;
  	int force = 0;
  
  	maj = ite_major();
  
  	/* initialize required fields */
  	cp->cn_dev = makedev(maj, 0);		/* XXX */
  	cp->cn_pri = CN_DEAD;
  
  	/* Abort early if console is already forced. */
  	if (conforced)
  		return;
  
  	/* Look for "internal" framebuffer. */
  	va = (caddr_t)IIOV(GRFIADDR);
  	grf = (struct grfreg *)va;
  	if (!badaddr(va) &&
  	    ((grf->gr_id == GRFHWID) && (grf->gr_id2 == GID_HYPERION))) {
  		cp->cn_pri = CN_INTERNAL;
  
  #ifdef CONSCODE
  		/*
  		 * Raise our priority and save some work, if appropriate.
  		 */
  		if (CONSCODE == -1) {
  			cp->cn_pri = CN_REMOTE;
  			force = conforced = 1;
  		}
  #endif
  
  		/*
  		 * If our priority is higher than the currently
  		 * remembered console, stash our priority, and
  		 * unmap whichever device might be currently mapped.
  		 * Since we're internal, we set the saved size to 0
  		 * so they don't attempt to unmap our fixed VA later.
  		 */
  		if (((cn_tab == NULL) || (cp->cn_pri > cn_tab->cn_pri))
  		    || force) {
  			cn_tab = cp;
  			if (convasize)
  				iounmap(conaddr, convasize);
  			conscode = -1;
  			conaddr = va;
  			convasize = 0;
  		}
  	}
  
  	console_scan(hyper_console_scan, cp);
  }
  
  void
  hypercninit(cp)
  	struct consdev *cp;
  {
  	struct grf_data *gp = &grf_cn;
  
  	/*
  	 * Initialize the framebuffer hardware.
  	 */
  	(void)hy_init(gp, conscode, conaddr);
  
  	/*
  	 * Set up required grf data.
  	 */
  	gp->g_sw = &hyper_grfsw;
  	gp->g_display.gd_id = gp->g_sw->gd_swid;
  	gp->g_flags = GF_ALIVE;
  
  	/*
  	 * Initialize the terminal emulator.
  	 */
  	itecninit(gp, &hyper_itesw);
  }
  
  #endif /* NITE > 0 */
  