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grf.c revision 1.35
      1  1.35  christos /*	$NetBSD: grf.c,v 1.35 2005/12/11 12:16:54 christos Exp $	*/
      2  1.33       agc 
      3  1.33       agc /*
      4  1.34       leo  * Copyright (c) 1995 Leo Weppelman
      5  1.33       agc  * Copyright (c) 1990 The Regents of the University of California.
      6  1.33       agc  * All rights reserved.
      7  1.33       agc  *
      8  1.33       agc  * This code is derived from software contributed to Berkeley by
      9  1.33       agc  * the Systems Programming Group of the University of Utah Computer
     10  1.33       agc  * Science Department.
     11  1.33       agc  *
     12  1.33       agc  * Redistribution and use in source and binary forms, with or without
     13  1.33       agc  * modification, are permitted provided that the following conditions
     14  1.33       agc  * are met:
     15  1.33       agc  * 1. Redistributions of source code must retain the above copyright
     16  1.33       agc  *    notice, this list of conditions and the following disclaimer.
     17  1.33       agc  * 2. Redistributions in binary form must reproduce the above copyright
     18  1.33       agc  *    notice, this list of conditions and the following disclaimer in the
     19  1.33       agc  *    documentation and/or other materials provided with the distribution.
     20  1.33       agc  * 3. Neither the name of the University nor the names of its contributors
     21  1.33       agc  *    may be used to endorse or promote products derived from this software
     22  1.33       agc  *    without specific prior written permission.
     23  1.33       agc  *
     24  1.33       agc  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     25  1.33       agc  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     26  1.33       agc  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     27  1.33       agc  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     28  1.33       agc  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     29  1.33       agc  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     30  1.33       agc  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     31  1.33       agc  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     32  1.33       agc  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     33  1.33       agc  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     34  1.33       agc  * SUCH DAMAGE.
     35  1.33       agc  *
     36  1.33       agc  * from: Utah $Hdr: grf.c 1.31 91/01/21$
     37  1.33       agc  *
     38  1.33       agc  *	@(#)grf.c	7.8 (Berkeley) 5/7/91
     39  1.33       agc  */
     40   1.1       leo 
     41   1.1       leo /*
     42   1.1       leo  * Copyright (c) 1988 University of Utah.
     43   1.1       leo  *
     44   1.1       leo  * This code is derived from software contributed to Berkeley by
     45   1.1       leo  * the Systems Programming Group of the University of Utah Computer
     46   1.1       leo  * Science Department.
     47   1.1       leo  *
     48   1.1       leo  * Redistribution and use in source and binary forms, with or without
     49   1.1       leo  * modification, are permitted provided that the following conditions
     50   1.1       leo  * are met:
     51   1.1       leo  * 1. Redistributions of source code must retain the above copyright
     52   1.1       leo  *    notice, this list of conditions and the following disclaimer.
     53   1.1       leo  * 2. Redistributions in binary form must reproduce the above copyright
     54   1.1       leo  *    notice, this list of conditions and the following disclaimer in the
     55   1.1       leo  *    documentation and/or other materials provided with the distribution.
     56   1.1       leo  * 3. All advertising materials mentioning features or use of this software
     57   1.1       leo  *    must display the following acknowledgement:
     58   1.1       leo  *	This product includes software developed by the University of
     59   1.1       leo  *	California, Berkeley and its contributors.
     60   1.1       leo  * 4. Neither the name of the University nor the names of its contributors
     61   1.1       leo  *    may be used to endorse or promote products derived from this software
     62   1.1       leo  *    without specific prior written permission.
     63   1.1       leo  *
     64   1.1       leo  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     65   1.1       leo  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     66   1.1       leo  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     67   1.1       leo  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     68   1.1       leo  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     69   1.1       leo  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     70   1.1       leo  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     71   1.1       leo  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     72   1.1       leo  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     73   1.1       leo  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     74   1.1       leo  * SUCH DAMAGE.
     75   1.1       leo  *
     76   1.1       leo  * from: Utah $Hdr: grf.c 1.31 91/01/21$
     77   1.1       leo  *
     78   1.1       leo  *	@(#)grf.c	7.8 (Berkeley) 5/7/91
     79   1.1       leo  */
     80   1.1       leo 
     81   1.1       leo /*
     82   1.1       leo  * Graphics display driver for the Atari
     83   1.1       leo  * This is the hardware-independent portion of the driver.
     84   1.1       leo  * Hardware access is through the grf_softc->g_mode routine.
     85   1.1       leo  */
     86  1.32     lukem 
     87  1.32     lukem #include <sys/cdefs.h>
     88  1.35  christos __KERNEL_RCSID(0, "$NetBSD: grf.c,v 1.35 2005/12/11 12:16:54 christos Exp $");
     89   1.1       leo 
     90   1.1       leo #include <sys/param.h>
     91   1.1       leo #include <sys/proc.h>
     92   1.1       leo #include <sys/ioctl.h>
     93   1.1       leo #include <sys/device.h>
     94   1.1       leo #include <sys/file.h>
     95   1.1       leo #include <sys/malloc.h>
     96   1.1       leo #include <sys/conf.h>
     97   1.1       leo #include <sys/systm.h>
     98   1.1       leo #include <sys/vnode.h>
     99   1.1       leo #include <sys/mman.h>
    100  1.25       mrg 
    101   1.1       leo #include <machine/cpu.h>
    102  1.25       mrg 
    103  1.25       mrg #include <uvm/uvm_extern.h>
    104  1.25       mrg 
    105   1.1       leo #include <atari/atari/device.h>
    106   1.1       leo #include <atari/dev/grfioctl.h>
    107   1.1       leo #include <atari/dev/grfabs_reg.h>
    108   1.1       leo #include <atari/dev/grfvar.h>
    109   1.1       leo #include <atari/dev/itevar.h>
    110   1.1       leo #include <atari/dev/viewioctl.h>
    111   1.1       leo #include <atari/dev/viewvar.h>
    112   1.1       leo 
    113  1.12       leo #include "grfcc.h"
    114  1.12       leo #include "grfet.h"
    115  1.12       leo #define	NGRF	(NGRFCC + NGRFET)
    116  1.12       leo 
    117   1.1       leo #if NGRF > 0
    118   1.1       leo 
    119   1.1       leo #include "ite.h"
    120   1.1       leo #if NITE == 0
    121   1.1       leo #define	ite_on(u,f)
    122   1.1       leo #define	ite_off(u,f)
    123   1.1       leo #define ite_reinit(d)
    124   1.1       leo #endif
    125   1.1       leo 
    126   1.1       leo int grfon __P((dev_t));
    127   1.1       leo int grfoff __P((dev_t));
    128   1.1       leo int grfsinfo __P((dev_t, struct grfdyninfo *));
    129   1.1       leo 
    130  1.11       cgd int grfbusprint __P((void *auxp, const char *));
    131  1.17       leo int grfbusmatch __P((struct device *, struct cfdata *, void *));
    132   1.1       leo void grfbusattach __P((struct device *, struct device *, void *));
    133   1.1       leo 
    134   1.1       leo /*
    135   1.1       leo  * pointers to grf drivers device structs
    136   1.1       leo  */
    137  1.12       leo struct grf_softc *grfsp[NGRF]; /* XXX */
    138   1.1       leo 
    139  1.29   thorpej CFATTACH_DECL(grfbus, sizeof(struct device),
    140  1.29   thorpej     grfbusmatch, grfbusattach, NULL, NULL);
    141   1.8   thorpej 
    142  1.21   thorpej extern struct cfdriver grfbus_cd;
    143   1.1       leo 
    144  1.27   gehenna dev_type_open(grfopen);
    145  1.27   gehenna dev_type_close(grfclose);
    146  1.27   gehenna dev_type_ioctl(grfioctl);
    147  1.27   gehenna dev_type_mmap(grfmmap);
    148  1.27   gehenna 
    149  1.27   gehenna const struct cdevsw grf_cdevsw = {
    150  1.27   gehenna 	grfopen, grfclose, noread, nowrite, grfioctl,
    151  1.31  jdolecek 	nostop, notty, nopoll, grfmmap, nokqfilter,
    152  1.27   gehenna };
    153  1.27   gehenna 
    154   1.1       leo /*
    155   1.1       leo  * only used in console init.
    156   1.1       leo  */
    157   1.1       leo static struct cfdata *cfdata_gbus  = NULL;
    158   1.1       leo 
    159   1.1       leo int
    160  1.17       leo grfbusmatch(pdp, cfp, auxp)
    161   1.1       leo struct device	*pdp;
    162  1.17       leo struct cfdata	*cfp;
    163  1.17       leo void		*auxp;
    164   1.1       leo {
    165   1.8   thorpej 	if(strcmp(auxp, grfbus_cd.cd_name))
    166   1.1       leo 		return(0);
    167   1.1       leo 
    168  1.12       leo 	if(atari_realconfig == 0)
    169  1.12       leo 		cfdata_gbus = cfp;
    170   1.1       leo 	return(1);	/* Always there	*/
    171   1.1       leo }
    172   1.1       leo 
    173   1.1       leo void
    174   1.1       leo grfbusattach(pdp, dp, auxp)
    175   1.1       leo struct device	*pdp, *dp;
    176   1.1       leo void		*auxp;
    177   1.1       leo {
    178  1.12       leo     grf_auxp_t	grf_auxp;
    179  1.12       leo 
    180  1.12       leo     grf_auxp.busprint       = grfbusprint;
    181  1.12       leo     grf_auxp.from_bus_match = 1;
    182   1.1       leo 
    183  1.12       leo     if(dp == NULL) /* Console init	*/
    184  1.12       leo 	atari_config_found(cfdata_gbus, NULL, (void*)&grf_auxp, grfbusprint);
    185  1.12       leo     else {
    186  1.16  christos 	printf("\n");
    187  1.12       leo 	config_found(dp, (void*)&grf_auxp, grfbusprint);
    188  1.12       leo     }
    189   1.1       leo }
    190   1.1       leo 
    191   1.1       leo int
    192   1.1       leo grfbusprint(auxp, name)
    193  1.12       leo void		*auxp;
    194  1.12       leo const char	*name;
    195   1.1       leo {
    196   1.1       leo 	if(name == NULL)
    197   1.1       leo 		return(UNCONF);
    198   1.1       leo 	return(QUIET);
    199   1.1       leo }
    200   1.1       leo 
    201   1.1       leo /*ARGSUSED*/
    202   1.1       leo int
    203  1.35  christos grfopen(dev, flags, devtype, l)
    204   1.1       leo 	dev_t dev;
    205   1.1       leo 	int flags, devtype;
    206  1.35  christos 	struct lwp *l;
    207   1.1       leo {
    208   1.1       leo 	struct grf_softc *gp;
    209   1.1       leo 
    210   1.1       leo 	if (GRFUNIT(dev) >= NGRF)
    211   1.1       leo 		return(ENXIO);
    212   1.1       leo 
    213   1.1       leo 	gp = grfsp[GRFUNIT(dev)];
    214  1.19       leo 	if (gp == NULL)
    215  1.19       leo 		return(ENXIO);
    216   1.1       leo 
    217   1.1       leo 	if ((gp->g_flags & GF_ALIVE) == 0)
    218   1.1       leo 		return(ENXIO);
    219   1.1       leo 
    220   1.1       leo 	if ((gp->g_flags & (GF_OPEN|GF_EXCLUDE)) == (GF_OPEN|GF_EXCLUDE))
    221   1.1       leo 		return(EBUSY);
    222   1.6       leo 	grf_viewsync(gp);
    223   1.1       leo 
    224   1.1       leo 	return(0);
    225   1.1       leo }
    226   1.1       leo 
    227   1.1       leo /*ARGSUSED*/
    228   1.1       leo int
    229  1.35  christos grfclose(dev, flags, mode, l)
    230  1.10       leo 	dev_t		dev;
    231  1.10       leo 	int		flags;
    232  1.10       leo 	int		mode;
    233  1.35  christos 	struct lwp	*l;
    234   1.1       leo {
    235   1.1       leo 	struct grf_softc *gp;
    236   1.1       leo 
    237   1.1       leo 	gp = grfsp[GRFUNIT(dev)];
    238   1.1       leo 	(void)grfoff(dev);
    239   1.1       leo 	gp->g_flags &= GF_ALIVE;
    240   1.1       leo 	return(0);
    241   1.1       leo }
    242   1.1       leo 
    243   1.1       leo /*ARGSUSED*/
    244   1.1       leo int
    245  1.35  christos grfioctl(dev, cmd, data, flag, l)
    246   1.1       leo dev_t		dev;
    247   1.1       leo u_long		cmd;
    248   1.1       leo int		flag;
    249   1.1       leo caddr_t		data;
    250  1.35  christos struct lwp	*l;
    251   1.1       leo {
    252   1.1       leo 	struct grf_softc	*gp;
    253   1.1       leo 	int			error;
    254  1.27   gehenna 	extern const struct cdevsw view_cdevsw;
    255   1.1       leo 
    256   1.1       leo 	gp = grfsp[GRFUNIT(dev)];
    257   1.1       leo 	error = 0;
    258   1.1       leo 
    259   1.1       leo 	switch (cmd) {
    260   1.1       leo 	case OGRFIOCGINFO:
    261   1.1       leo 	        /* argl.. no bank-member.. */
    262   1.1       leo 	  	bcopy((caddr_t)&gp->g_display, data, sizeof(struct grfinfo)-4);
    263   1.1       leo 		break;
    264   1.1       leo 	case GRFIOCGINFO:
    265   1.1       leo 		bcopy((caddr_t)&gp->g_display, data, sizeof(struct grfinfo));
    266   1.1       leo 		break;
    267   1.1       leo 	case GRFIOCON:
    268   1.1       leo 		error = grfon(dev);
    269   1.1       leo 		break;
    270   1.1       leo 	case GRFIOCOFF:
    271   1.1       leo 		error = grfoff(dev);
    272   1.1       leo 		break;
    273   1.1       leo 	case GRFIOCSINFO:
    274   1.1       leo 		error = grfsinfo(dev, (struct grfdyninfo *) data);
    275   1.1       leo 		break;
    276   1.1       leo 	case GRFGETVMODE:
    277   1.7       leo 		return(gp->g_mode(gp, GM_GRFGETVMODE, data, 0, 0));
    278   1.1       leo 	case GRFSETVMODE:
    279   1.7       leo 		error = gp->g_mode(gp, GM_GRFSETVMODE, data, 0, 0);
    280   1.1       leo 		if (error == 0 && gp->g_itedev)
    281   1.1       leo 			ite_reinit(gp->g_itedev);
    282   1.1       leo 		break;
    283   1.1       leo 	case GRFGETNUMVM:
    284   1.7       leo 		return(gp->g_mode(gp, GM_GRFGETNUMVM, data, 0, 0));
    285   1.1       leo 	/*
    286   1.1       leo 	 * these are all hardware dependant, and have to be resolved
    287   1.1       leo 	 * in the respective driver.
    288   1.1       leo 	 */
    289   1.1       leo 	case GRFIOCPUTCMAP:
    290   1.1       leo 	case GRFIOCGETCMAP:
    291   1.1       leo 	case GRFIOCSSPRITEPOS:
    292   1.1       leo 	case GRFIOCGSPRITEPOS:
    293   1.1       leo 	case GRFIOCSSPRITEINF:
    294   1.1       leo 	case GRFIOCGSPRITEINF:
    295   1.1       leo 	case GRFIOCGSPRITEMAX:
    296   1.1       leo 	default:
    297   1.1       leo 		/*
    298   1.1       leo 		 * check to see whether it's a command recognized by the
    299   1.1       leo 		 * view code.
    300   1.1       leo 		 */
    301  1.27   gehenna 		return((*view_cdevsw.d_ioctl)(gp->g_viewdev, cmd, data, flag,
    302  1.35  christos 					      l));
    303   1.1       leo 		error = EINVAL;
    304   1.1       leo 		break;
    305   1.1       leo 
    306   1.1       leo 	}
    307   1.1       leo 	return(error);
    308   1.1       leo }
    309   1.1       leo 
    310   1.1       leo /*
    311   1.1       leo  * map the contents of a graphics display card into process'
    312   1.1       leo  * memory space.
    313   1.1       leo  */
    314  1.23    simonb paddr_t
    315   1.2   mycroft grfmmap(dev, off, prot)
    316  1.23    simonb 	dev_t	dev;
    317  1.23    simonb 	off_t	off;
    318  1.23    simonb 	int	prot;
    319   1.1       leo {
    320   1.5       leo 	struct grf_softc	*gp;
    321   1.5       leo 	struct grfinfo		*gi;
    322  1.22    thomas 	u_int			vgabase, linbase;
    323   1.5       leo 
    324   1.5       leo 	gp = grfsp[GRFUNIT(dev)];
    325   1.5       leo 	gi = &gp->g_display;
    326  1.18       leo 
    327  1.22    thomas 	vgabase = gi->gd_vgabase;
    328  1.22    thomas 	linbase = gi->gd_linbase;
    329  1.22    thomas 
    330  1.18       leo 	/*
    331  1.18       leo 	 * control registers
    332  1.18       leo 	 */
    333  1.18       leo 	if (off >= 0 && off < gi->gd_regsize)
    334  1.23    simonb 		return(((paddr_t)gi->gd_regaddr + off) >> PGSHIFT);
    335   1.5       leo 
    336   1.5       leo 	/*
    337  1.22    thomas 	 * VGA memory
    338  1.22    thomas 	 */
    339  1.22    thomas 	if (off >= vgabase && off < (vgabase + gi->gd_vgasize))
    340  1.23    simonb 		return(((paddr_t)gi->gd_vgaaddr - vgabase + off) >> PGSHIFT);
    341  1.22    thomas 
    342  1.22    thomas 	/*
    343   1.5       leo 	 * frame buffer
    344   1.5       leo 	 */
    345  1.22    thomas 	if (off >= linbase && off < (linbase + gi->gd_fbsize))
    346  1.23    simonb 		return(((paddr_t)gi->gd_fbaddr - linbase + off) >> PGSHIFT);
    347   1.5       leo 	return(-1);
    348   1.1       leo }
    349   1.1       leo 
    350   1.1       leo int
    351   1.1       leo grfon(dev)
    352   1.1       leo 	dev_t dev;
    353   1.1       leo {
    354   1.1       leo 	struct grf_softc *gp;
    355   1.1       leo 
    356   1.1       leo 	gp = grfsp[GRFUNIT(dev)];
    357   1.1       leo 
    358   1.1       leo 	if (gp->g_flags & GF_GRFON)
    359   1.1       leo 		return(0);
    360   1.1       leo 
    361   1.1       leo 	gp->g_flags |= GF_GRFON;
    362   1.1       leo 	if (gp->g_itedev != NODEV)
    363   1.1       leo 		ite_off(gp->g_itedev, 3);
    364   1.1       leo 
    365   1.7       leo 	return(gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVON : GM_GRFON,
    366   1.7       leo 							NULL, 0, 0));
    367   1.1       leo }
    368   1.1       leo 
    369   1.1       leo int
    370   1.1       leo grfoff(dev)
    371   1.1       leo 	dev_t dev;
    372   1.1       leo {
    373   1.1       leo 	struct grf_softc *gp;
    374   1.1       leo 	int error;
    375   1.1       leo 
    376   1.1       leo 	gp = grfsp[GRFUNIT(dev)];
    377   1.1       leo 
    378   1.1       leo 	if ((gp->g_flags & GF_GRFON) == 0)
    379   1.1       leo 		return(0);
    380   1.1       leo 
    381   1.1       leo 	gp->g_flags &= ~GF_GRFON;
    382   1.7       leo 	error = gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVOFF : GM_GRFOFF,
    383   1.7       leo 						NULL, 0, 0);
    384   1.1       leo 
    385   1.1       leo 	/*
    386   1.1       leo 	 * Closely tied together no X's
    387   1.1       leo 	 */
    388   1.1       leo 	if (gp->g_itedev != NODEV)
    389   1.1       leo 		ite_on(gp->g_itedev, 2);
    390   1.1       leo 
    391   1.1       leo 	return(error);
    392   1.1       leo }
    393   1.1       leo 
    394   1.1       leo int
    395   1.1       leo grfsinfo(dev, dyninfo)
    396   1.1       leo 	dev_t dev;
    397   1.1       leo 	struct grfdyninfo *dyninfo;
    398   1.1       leo {
    399   1.1       leo 	struct grf_softc *gp;
    400   1.1       leo 	int error;
    401   1.1       leo 
    402   1.1       leo 	gp = grfsp[GRFUNIT(dev)];
    403   1.7       leo 	error = gp->g_mode(gp, GM_GRFCONFIG, dyninfo, 0, 0);
    404   1.1       leo 
    405   1.1       leo 	/*
    406   1.1       leo 	 * Closely tied together no X's
    407   1.1       leo 	 */
    408   1.1       leo 	if (gp->g_itedev != NODEV)
    409   1.1       leo 		ite_reinit(gp->g_itedev);
    410   1.1       leo 	return(error);
    411   1.1       leo }
    412   1.1       leo 
    413   1.1       leo /*
    414   1.1       leo  * Get the grf-info in sync with underlying view.
    415   1.1       leo  */
    416  1.12       leo void
    417   1.1       leo grf_viewsync(gp)
    418   1.1       leo struct grf_softc *gp;
    419   1.1       leo {
    420   1.1       leo 	struct view_size	vs;
    421   1.1       leo 	bmap_t			bm;
    422   1.1       leo 	struct grfinfo		*gi;
    423  1.27   gehenna 	extern const struct cdevsw view_cdevsw;
    424   1.1       leo 
    425   1.1       leo 	gi = &gp->g_display;
    426   1.1       leo 
    427  1.27   gehenna 	(*view_cdevsw.d_ioctl)(gp->g_viewdev, VIOCGBMAP, (caddr_t)&bm,
    428  1.35  christos 			       0, NOLWP);
    429   1.1       leo 
    430   1.1       leo 	gp->g_data = (caddr_t) 0xDeadBeaf; /* not particularly clean.. */
    431   1.1       leo 
    432   1.1       leo 	gi->gd_fbaddr  = bm.hw_address;
    433  1.20       leo 	gi->gd_fbsize  = bm.phys_mappable;
    434  1.22    thomas 	gi->gd_linbase = bm.lin_base;
    435  1.12       leo 	gi->gd_regaddr = bm.hw_regs;
    436  1.12       leo 	gi->gd_regsize = bm.reg_size;
    437  1.22    thomas 	gi->gd_vgaaddr = bm.vga_address;
    438  1.22    thomas 	gi->gd_vgasize = bm.vga_mappable;
    439  1.22    thomas 	gi->gd_vgabase = bm.vga_base;
    440   1.1       leo 
    441  1.27   gehenna 	if((*view_cdevsw.d_ioctl)(gp->g_viewdev, VIOCGSIZE, (caddr_t)&vs, 0,
    442  1.35  christos 				  NOLWP)) {
    443   1.1       leo 		/*
    444   1.1       leo 		 * fill in some default values...
    445   1.1       leo 		 * XXX: Should _never_ happen
    446   1.1       leo 		 */
    447   1.1       leo 		vs.width  = 640;
    448   1.1       leo 		vs.height = 400;
    449   1.3       leo 		vs.depth  = 1;
    450   1.1       leo 	}
    451   1.1       leo 	gi->gd_colors = 1 << vs.depth;
    452   1.1       leo 	gi->gd_planes = vs.depth;
    453   1.1       leo 
    454   1.1       leo 	gi->gd_fbwidth         = vs.width;
    455   1.1       leo 	gi->gd_fbheight        = vs.height;
    456   1.1       leo 	gi->gd_dyn.gdi_fbx     = 0;
    457   1.1       leo 	gi->gd_dyn.gdi_fby     = 0;
    458   1.1       leo 	gi->gd_dyn.gdi_dwidth  = vs.width;
    459   1.1       leo 	gi->gd_dyn.gdi_dheight = vs.height;
    460   1.1       leo 	gi->gd_dyn.gdi_dx      = 0;
    461   1.1       leo 	gi->gd_dyn.gdi_dy      = 0;
    462   1.1       leo }
    463   1.1       leo 
    464   1.1       leo /*
    465   1.1       leo  * Change the mode of the display.
    466   1.1       leo  * Right now all we can do is grfon/grfoff.
    467   1.1       leo  * Return a UNIX error number or 0 for success.
    468   1.1       leo  */
    469   1.1       leo /*ARGSUSED*/
    470  1.12       leo int
    471   1.1       leo grf_mode(gp, cmd, arg, a2, a3)
    472   1.1       leo struct grf_softc	*gp;
    473   1.1       leo int			cmd, a2, a3;
    474   1.1       leo void			*arg;
    475   1.1       leo {
    476  1.27   gehenna 	extern const struct cdevsw view_cdevsw;
    477  1.27   gehenna 
    478   1.1       leo 	switch (cmd) {
    479   1.1       leo 		case GM_GRFON:
    480   1.1       leo 			/*
    481   1.1       leo 			 * Get in sync with view, ite might have changed it.
    482   1.1       leo 			 */
    483   1.1       leo 			grf_viewsync(gp);
    484  1.27   gehenna 			(*view_cdevsw.d_ioctl)(gp->g_viewdev, VIOCDISPLAY,
    485  1.35  christos 					       NULL, 0, NOLWP);
    486   1.1       leo 			return(0);
    487   1.1       leo 	case GM_GRFOFF:
    488  1.27   gehenna 			(*view_cdevsw.d_ioctl)(gp->g_viewdev, VIOCREMOVE,
    489  1.35  christos 					       NULL, 0, NOLWP);
    490   1.1       leo 			return(0);
    491   1.1       leo 	case GM_GRFCONFIG:
    492   1.1       leo 	default:
    493   1.1       leo 			break;
    494   1.1       leo 	}
    495  1.26    atatat 	return(EPASSTHROUGH);
    496   1.1       leo }
    497   1.1       leo #endif	/* NGRF > 0 */
    498