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lunafb.c revision 1.12.16.1
      1  1.12.16.1      yamt /* $NetBSD: lunafb.c,v 1.12.16.1 2006/06/21 14:52:58 yamt Exp $ */
      2        1.1  nisimura 
      3        1.1  nisimura /*-
      4        1.1  nisimura  * Copyright (c) 2000 The NetBSD Foundation, Inc.
      5        1.1  nisimura  * All rights reserved.
      6        1.1  nisimura  *
      7        1.1  nisimura  * This code is derived from software contributed to The NetBSD Foundation
      8        1.1  nisimura  * by Tohru Nishimura.
      9        1.1  nisimura  *
     10        1.1  nisimura  * Redistribution and use in source and binary forms, with or without
     11        1.1  nisimura  * modification, are permitted provided that the following conditions
     12        1.1  nisimura  * are met:
     13        1.1  nisimura  * 1. Redistributions of source code must retain the above copyright
     14        1.1  nisimura  *    notice, this list of conditions and the following disclaimer.
     15        1.1  nisimura  * 2. Redistributions in binary form must reproduce the above copyright
     16        1.1  nisimura  *    notice, this list of conditions and the following disclaimer in the
     17        1.1  nisimura  *    documentation and/or other materials provided with the distribution.
     18        1.1  nisimura  * 3. All advertising materials mentioning features or use of this software
     19        1.1  nisimura  *    must display the following acknowledgement:
     20        1.1  nisimura  *	This product includes software developed by the NetBSD
     21        1.1  nisimura  *	Foundation, Inc. and its contributors.
     22        1.1  nisimura  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23        1.1  nisimura  *    contributors may be used to endorse or promote products derived
     24        1.1  nisimura  *    from this software without specific prior written permission.
     25        1.1  nisimura  *
     26        1.1  nisimura  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27        1.1  nisimura  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28        1.1  nisimura  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29        1.1  nisimura  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30        1.1  nisimura  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31        1.1  nisimura  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32        1.1  nisimura  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33        1.1  nisimura  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34        1.1  nisimura  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35        1.1  nisimura  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36        1.1  nisimura  * POSSIBILITY OF SUCH DAMAGE.
     37        1.1  nisimura  */
     38        1.1  nisimura 
     39        1.1  nisimura #include <sys/cdefs.h>			/* RCS ID & Copyright macro defns */
     40        1.1  nisimura 
     41  1.12.16.1      yamt __KERNEL_RCSID(0, "$NetBSD: lunafb.c,v 1.12.16.1 2006/06/21 14:52:58 yamt Exp $");
     42        1.1  nisimura 
     43        1.1  nisimura #include <sys/param.h>
     44        1.1  nisimura #include <sys/systm.h>
     45        1.1  nisimura #include <sys/conf.h>
     46        1.1  nisimura #include <sys/device.h>
     47        1.1  nisimura #include <sys/ioctl.h>
     48        1.1  nisimura #include <sys/malloc.h>
     49        1.1  nisimura #include <sys/mman.h>
     50        1.1  nisimura #include <sys/proc.h>
     51        1.1  nisimura #include <sys/tty.h>
     52        1.1  nisimura #include <sys/errno.h>
     53        1.1  nisimura #include <sys/buf.h>
     54        1.6       mrg 
     55        1.1  nisimura #include <uvm/uvm_extern.h>
     56        1.1  nisimura 
     57        1.1  nisimura #include <dev/rcons/raster.h>
     58        1.1  nisimura #include <dev/wscons/wsconsio.h>
     59        1.1  nisimura #include <dev/wscons/wscons_raster.h>
     60        1.1  nisimura #include <dev/wscons/wsdisplayvar.h>
     61        1.1  nisimura 
     62        1.1  nisimura #include <machine/cpu.h>
     63        1.1  nisimura #include <machine/autoconf.h>
     64        1.1  nisimura 
     65        1.1  nisimura struct bt454 {
     66        1.1  nisimura 	u_int8_t bt_addr;		/* map address register */
     67        1.1  nisimura 	u_int8_t bt_cmap;		/* colormap data register */
     68        1.1  nisimura };
     69        1.1  nisimura 
     70        1.1  nisimura struct bt458 {
     71        1.1  nisimura 	u_int8_t bt_addr;		/* map address register */
     72        1.1  nisimura 		unsigned :24;
     73        1.1  nisimura 	u_int8_t bt_cmap;		/* colormap data register */
     74        1.1  nisimura 		unsigned :24;
     75        1.1  nisimura 	u_int8_t bt_ctrl;		/* control register */
     76        1.1  nisimura 		unsigned :24;
     77        1.1  nisimura 	u_int8_t bt_omap;		/* overlay (cursor) map register */
     78        1.1  nisimura 		unsigned :24;
     79        1.1  nisimura };
     80        1.1  nisimura 
     81        1.1  nisimura #define	OMFB_RFCNT	0xB1000000	/* video h-origin/v-origin */
     82        1.1  nisimura #define	OMFB_PLANEMASK	0xB1040000	/* planemask register */
     83        1.1  nisimura #define	OMFB_FB_WADDR	0xB1080008	/* common plane */
     84        1.1  nisimura #define	OMFB_FB_RADDR	0xB10C0008	/* plane #0 */
     85        1.1  nisimura #define	OMFB_ROPFUNC	0xB12C0000	/* ROP function code */
     86        1.1  nisimura #define	OMFB_RAMDAC	0xC1100000	/* Bt454/Bt458 RAMDAC */
     87       1.11   thorpej #define	OMFB_SIZE	(0xB1300000 - 0xB1080000 + PAGE_SIZE)
     88        1.1  nisimura 
     89        1.1  nisimura struct om_hwdevconfig {
     90        1.1  nisimura 	int	dc_wid;			/* width of frame buffer */
     91        1.1  nisimura 	int	dc_ht;			/* height of frame buffer */
     92        1.1  nisimura 	int	dc_depth;		/* depth, bits per pixel */
     93        1.1  nisimura 	int	dc_rowbytes;		/* bytes in a FB scan line */
     94        1.1  nisimura 	int	dc_cmsize;		/* colormap size */
     95        1.1  nisimura 	vaddr_t	dc_videobase;		/* base of flat frame buffer */
     96        1.1  nisimura 	struct raster	dc_raster;	/* raster description */
     97        1.1  nisimura 	struct rcons	dc_rcons;	/* raster blitter control info */
     98        1.1  nisimura };
     99        1.1  nisimura 
    100        1.1  nisimura struct hwcmap {
    101        1.1  nisimura #define CMAP_SIZE 256
    102        1.1  nisimura 	u_int8_t r[CMAP_SIZE];
    103        1.1  nisimura 	u_int8_t g[CMAP_SIZE];
    104        1.1  nisimura 	u_int8_t b[CMAP_SIZE];
    105        1.1  nisimura };
    106        1.1  nisimura 
    107        1.1  nisimura struct omfb_softc {
    108        1.1  nisimura 	struct device sc_dev;		/* base device */
    109        1.1  nisimura 	struct om_hwdevconfig *sc_dc;	/* device configuration */
    110        1.1  nisimura 	struct hwcmap sc_cmap;		/* software copy of colormap */
    111        1.1  nisimura 	int nscreens;
    112        1.1  nisimura };
    113        1.1  nisimura 
    114        1.1  nisimura static int  omgetcmap __P((struct omfb_softc *, struct wsdisplay_cmap *));
    115        1.1  nisimura static int  omsetcmap __P((struct omfb_softc *, struct wsdisplay_cmap *));
    116        1.1  nisimura 
    117        1.1  nisimura static struct om_hwdevconfig omfb_console_dc;
    118        1.1  nisimura static void omfb_getdevconfig __P((paddr_t, struct om_hwdevconfig *));
    119        1.1  nisimura 
    120        1.1  nisimura extern struct wsdisplay_emulops omfb_emulops;
    121        1.1  nisimura 
    122        1.1  nisimura static struct wsscreen_descr omfb_stdscreen = {
    123        1.1  nisimura 	"std", 0, 0,
    124        1.1  nisimura 	&omfb_emulops,
    125        1.1  nisimura 	0, 0,
    126        1.1  nisimura 	0
    127        1.1  nisimura };
    128        1.1  nisimura 
    129        1.1  nisimura static const struct wsscreen_descr *_omfb_scrlist[] = {
    130        1.1  nisimura 	&omfb_stdscreen,
    131        1.1  nisimura };
    132        1.1  nisimura 
    133        1.1  nisimura static const struct wsscreen_list omfb_screenlist = {
    134        1.1  nisimura 	sizeof(_omfb_scrlist) / sizeof(struct wsscreen_descr *), _omfb_scrlist
    135        1.1  nisimura };
    136        1.1  nisimura 
    137  1.12.16.1      yamt static int   omfbioctl __P((void *, void *, u_long, caddr_t, int,
    138  1.12.16.1      yamt 		            struct lwp *));
    139  1.12.16.1      yamt static paddr_t omfbmmap __P((void *, void *, off_t, int));
    140        1.5    simonb static int   omfb_alloc_screen __P((void *, const struct wsscreen_descr *,
    141        1.1  nisimura 				      void **, int *, int *, long *));
    142        1.5    simonb static void  omfb_free_screen __P((void *, void *));
    143        1.5    simonb static int   omfb_show_screen __P((void *, void *, int,
    144        1.1  nisimura 				void (*) (void *, int, int), void *));
    145        1.1  nisimura 
    146        1.1  nisimura static const struct wsdisplay_accessops omfb_accessops = {
    147        1.1  nisimura 	omfbioctl,
    148        1.1  nisimura 	omfbmmap,
    149        1.1  nisimura 	omfb_alloc_screen,
    150        1.1  nisimura 	omfb_free_screen,
    151        1.1  nisimura 	omfb_show_screen,
    152        1.1  nisimura 	0 /* load_font */
    153        1.1  nisimura };
    154        1.1  nisimura 
    155        1.1  nisimura static int  omfbmatch __P((struct device *, struct cfdata *, void *));
    156        1.1  nisimura static void omfbattach __P((struct device *, struct device *, void *));
    157        1.1  nisimura 
    158       1.10   thorpej CFATTACH_DECL(fb, sizeof(struct omfb_softc),
    159       1.10   thorpej     omfbmatch, omfbattach, NULL, NULL);
    160        1.1  nisimura extern struct cfdriver fb_cd;
    161        1.1  nisimura 
    162        1.1  nisimura extern int hwplanemask;	/* hardware planemask; retrieved at boot */
    163        1.1  nisimura 
    164        1.1  nisimura static int omfb_console;
    165        1.1  nisimura int  omfb_cnattach __P((void));
    166        1.1  nisimura 
    167        1.1  nisimura static int
    168        1.1  nisimura omfbmatch(parent, cf, aux)
    169        1.1  nisimura 	struct device *parent;
    170        1.1  nisimura 	struct cfdata *cf;
    171        1.1  nisimura 	void *aux;
    172        1.1  nisimura {
    173        1.1  nisimura 	struct mainbus_attach_args *ma = aux;
    174        1.1  nisimura 
    175        1.1  nisimura 	if (strcmp(ma->ma_name, fb_cd.cd_name))
    176        1.1  nisimura 		return (0);
    177        1.4  nisimura #if 0	/* XXX badaddr() bombs if no framebuffer is installed */
    178        1.1  nisimura 	if (badaddr((caddr_t)ma->ma_addr, 4))
    179        1.1  nisimura 		return (0);
    180        1.3  nisimura #else
    181        1.3  nisimura 	if (hwplanemask == 0)
    182        1.3  nisimura 		return (0);
    183        1.3  nisimura #endif
    184        1.1  nisimura 	return (1);
    185        1.1  nisimura }
    186        1.1  nisimura 
    187        1.1  nisimura static void
    188        1.1  nisimura omfbattach(parent, self, args)
    189        1.1  nisimura 	struct device *parent, *self;
    190        1.1  nisimura 	void *args;
    191        1.1  nisimura {
    192        1.1  nisimura 	struct omfb_softc *sc = (struct omfb_softc *)self;
    193        1.1  nisimura 	struct wsemuldisplaydev_attach_args waa;
    194        1.1  nisimura 
    195        1.1  nisimura 	if (omfb_console) {
    196        1.1  nisimura 		sc->sc_dc = &omfb_console_dc;
    197        1.1  nisimura 		sc->nscreens = 1;
    198        1.1  nisimura 	}
    199        1.1  nisimura 	else {
    200        1.1  nisimura 		sc->sc_dc = (struct om_hwdevconfig *)
    201        1.1  nisimura 		    malloc(sizeof(struct om_hwdevconfig), M_DEVBUF, M_WAITOK);
    202        1.1  nisimura 		omfb_getdevconfig(OMFB_FB_WADDR, sc->sc_dc);
    203        1.1  nisimura 	}
    204        1.1  nisimura 	printf(": %d x %d, %dbpp\n", sc->sc_dc->dc_wid, sc->sc_dc->dc_ht,
    205        1.1  nisimura 	    sc->sc_dc->dc_depth);
    206        1.1  nisimura 
    207        1.1  nisimura #if 0	/* WHITE on BLACK */
    208        1.1  nisimura 	cm = &sc->sc_cmap;
    209        1.1  nisimura 	memset(cm, 255, sizeof(struct hwcmap));
    210        1.1  nisimura 	cm->r[0] = cm->g[0] = cm->b[0] = 0;
    211        1.1  nisimura #endif
    212        1.1  nisimura 	waa.console = omfb_console;
    213        1.1  nisimura 	waa.scrdata = &omfb_screenlist;
    214        1.1  nisimura 	waa.accessops = &omfb_accessops;
    215        1.1  nisimura 	waa.accesscookie = sc;
    216        1.1  nisimura 
    217        1.1  nisimura 	config_found(self, &waa, wsemuldisplaydevprint);
    218        1.1  nisimura }
    219        1.1  nisimura 
    220        1.1  nisimura /* EXPORT */ int
    221        1.1  nisimura omfb_cnattach()
    222        1.1  nisimura {
    223        1.1  nisimura 	struct om_hwdevconfig *dc = &omfb_console_dc;
    224        1.1  nisimura 	long defattr;
    225        1.1  nisimura 
    226        1.1  nisimura 	omfb_getdevconfig(OMFB_FB_WADDR, dc);
    227        1.8  junyoung 	(*omfb_emulops.allocattr)(&dc->dc_rcons, 0, 0, 0, &defattr);
    228        1.1  nisimura 	wsdisplay_cnattach(&omfb_stdscreen, &dc->dc_rcons, 0, 0, defattr);
    229        1.1  nisimura 	omfb_console = 1;
    230        1.1  nisimura 	return (0);
    231        1.1  nisimura }
    232        1.1  nisimura 
    233        1.1  nisimura static int
    234  1.12.16.1      yamt omfbioctl(v, vs, cmd, data, flag, l)
    235        1.1  nisimura 	void *v;
    236  1.12.16.1      yamt 	void *vs;
    237        1.1  nisimura 	u_long cmd;
    238        1.1  nisimura 	caddr_t data;
    239        1.1  nisimura 	int flag;
    240  1.12.16.1      yamt 	struct lwp *l;
    241        1.1  nisimura {
    242        1.1  nisimura 	struct omfb_softc *sc = v;
    243        1.1  nisimura 	struct om_hwdevconfig *dc = sc->sc_dc;
    244        1.1  nisimura 
    245        1.1  nisimura 	switch (cmd) {
    246        1.1  nisimura 	case WSDISPLAYIO_GTYPE:
    247        1.1  nisimura 		*(u_int *)data = 0x19990927;
    248        1.1  nisimura 		return (0);
    249        1.1  nisimura 
    250        1.1  nisimura 	case WSDISPLAYIO_GINFO:
    251        1.1  nisimura #define	wsd_fbip ((struct wsdisplay_fbinfo *)data)
    252        1.1  nisimura 		wsd_fbip->height = dc->dc_ht;
    253        1.1  nisimura 		wsd_fbip->width = dc->dc_wid;
    254        1.1  nisimura 		wsd_fbip->depth = dc->dc_depth;
    255        1.1  nisimura 		wsd_fbip->cmsize = dc->dc_cmsize;
    256        1.1  nisimura #undef fbt
    257        1.1  nisimura 		return (0);
    258        1.1  nisimura 
    259        1.1  nisimura 	case WSDISPLAYIO_GETCMAP:
    260        1.1  nisimura 		return omgetcmap(sc, (struct wsdisplay_cmap *)data);
    261        1.1  nisimura 
    262        1.1  nisimura 	case WSDISPLAYIO_PUTCMAP:
    263        1.1  nisimura 		return omsetcmap(sc, (struct wsdisplay_cmap *)data);
    264        1.1  nisimura 
    265        1.1  nisimura 	case WSDISPLAYIO_SVIDEO:
    266        1.1  nisimura 	case WSDISPLAYIO_GVIDEO:
    267        1.1  nisimura 	case WSDISPLAYIO_GCURPOS:
    268        1.1  nisimura 	case WSDISPLAYIO_SCURPOS:
    269        1.1  nisimura 	case WSDISPLAYIO_GCURMAX:
    270        1.1  nisimura 	case WSDISPLAYIO_GCURSOR:
    271        1.1  nisimura 	case WSDISPLAYIO_SCURSOR:
    272        1.1  nisimura 		break;
    273        1.1  nisimura 	}
    274        1.7    atatat 	return (EPASSTHROUGH);
    275        1.1  nisimura }
    276        1.1  nisimura 
    277        1.1  nisimura /*
    278        1.1  nisimura  * Return the address that would map the given device at the given
    279        1.1  nisimura  * offset, allowing for the given protection, or return -1 for error.
    280        1.1  nisimura  */
    281        1.5    simonb static paddr_t
    282  1.12.16.1      yamt omfbmmap(v, vs, offset, prot)
    283        1.1  nisimura 	void *v;
    284  1.12.16.1      yamt 	void *vs;
    285        1.1  nisimura 	off_t offset;
    286        1.1  nisimura 	int prot;
    287        1.1  nisimura {
    288        1.1  nisimura 	struct omfb_softc *sc = v;
    289        1.1  nisimura 
    290        1.1  nisimura 	if (offset >= OMFB_SIZE || offset < 0)
    291        1.1  nisimura 		return (-1);
    292        1.1  nisimura 	return m68k_btop(m68k_trunc_page(sc->sc_dc->dc_videobase) + offset);
    293        1.1  nisimura }
    294        1.1  nisimura 
    295        1.1  nisimura static int
    296        1.1  nisimura omgetcmap(sc, p)
    297        1.1  nisimura 	struct omfb_softc *sc;
    298        1.1  nisimura 	struct wsdisplay_cmap *p;
    299        1.1  nisimura {
    300        1.1  nisimura 	u_int index = p->index, count = p->count;
    301       1.12       chs 	int cmsize, error;
    302        1.1  nisimura 
    303        1.1  nisimura 	cmsize = sc->sc_dc->dc_cmsize;
    304        1.9    itojun 	if (index >= cmsize || count > cmsize - index)
    305        1.1  nisimura 		return (EINVAL);
    306        1.1  nisimura 
    307       1.12       chs 	error = copyout(&sc->sc_cmap.r[index], p->red, count);
    308       1.12       chs 	if (error)
    309       1.12       chs 		return error;
    310       1.12       chs 	error = copyout(&sc->sc_cmap.g[index], p->green, count);
    311       1.12       chs 	if (error)
    312       1.12       chs 		return error;
    313       1.12       chs 	error = copyout(&sc->sc_cmap.b[index], p->blue, count);
    314       1.12       chs 	return error;
    315        1.1  nisimura }
    316        1.1  nisimura 
    317        1.1  nisimura static int
    318        1.1  nisimura omsetcmap(sc, p)
    319        1.1  nisimura 	struct omfb_softc *sc;
    320        1.1  nisimura 	struct wsdisplay_cmap *p;
    321        1.1  nisimura {
    322       1.12       chs 	struct hwcmap cmap;
    323        1.1  nisimura 	u_int index = p->index, count = p->count;
    324       1.12       chs 	int cmsize, i, error;
    325        1.1  nisimura 
    326        1.1  nisimura 	cmsize = sc->sc_dc->dc_cmsize;
    327        1.1  nisimura 	if (index >= cmsize || (index + count) > cmsize)
    328        1.1  nisimura 		return (EINVAL);
    329        1.1  nisimura 
    330       1.12       chs 	error = copyin(p->red, &cmap.r[index], count);
    331       1.12       chs 	if (error)
    332       1.12       chs 		return error;
    333       1.12       chs 	error = copyin(p->green, &cmap.g[index], count);
    334       1.12       chs 	if (error)
    335       1.12       chs 		return error;
    336       1.12       chs 	error = copyin(p->blue, &cmap.b[index], count);
    337       1.12       chs 	if (error)
    338       1.12       chs 		return error;
    339       1.12       chs 
    340       1.12       chs 	memcpy(&sc->sc_cmap.r[index], &cmap.r[index], count);
    341       1.12       chs 	memcpy(&sc->sc_cmap.g[index], &cmap.g[index], count);
    342       1.12       chs 	memcpy(&sc->sc_cmap.b[index], &cmap.b[index], count);
    343        1.1  nisimura 	if (hwplanemask == 0x0f) {
    344        1.1  nisimura 		struct bt454 *odac = (struct bt454 *)OMFB_RAMDAC;
    345        1.1  nisimura 		odac->bt_addr = index;
    346        1.1  nisimura 		for (i = index; i < count; i++) {
    347        1.1  nisimura 			odac->bt_cmap = sc->sc_cmap.r[i];
    348        1.1  nisimura 			odac->bt_cmap = sc->sc_cmap.g[i];
    349        1.1  nisimura 			odac->bt_cmap = sc->sc_cmap.b[i];
    350        1.1  nisimura 		}
    351        1.1  nisimura 	}
    352        1.1  nisimura 	else if (hwplanemask == 0xff) {
    353        1.1  nisimura 		struct bt458 *ndac = (struct bt458 *)OMFB_RAMDAC;
    354        1.1  nisimura 		ndac->bt_addr = index;
    355        1.1  nisimura 		for (i = index; i < count; i++) {
    356        1.1  nisimura 			ndac->bt_cmap = sc->sc_cmap.r[i];
    357        1.1  nisimura 			ndac->bt_cmap = sc->sc_cmap.g[i];
    358        1.1  nisimura 			ndac->bt_cmap = sc->sc_cmap.b[i];
    359        1.1  nisimura 		}
    360        1.1  nisimura 	}
    361        1.1  nisimura 	return (0);
    362        1.1  nisimura }
    363        1.1  nisimura 
    364        1.1  nisimura static void
    365        1.1  nisimura omfb_getdevconfig(paddr, dc)
    366        1.1  nisimura 	paddr_t paddr;
    367        1.1  nisimura 	struct om_hwdevconfig *dc;
    368        1.1  nisimura {
    369        1.1  nisimura 	int bpp, i;
    370        1.1  nisimura 	struct raster *rap;
    371        1.1  nisimura 	struct rcons *rcp;
    372        1.4  nisimura 	union {
    373        1.4  nisimura 		struct { short h, v; } p;
    374        1.4  nisimura 		u_int32_t u;
    375        1.4  nisimura 	} rfcnt;
    376        1.1  nisimura 
    377        1.1  nisimura 	switch (hwplanemask) {
    378        1.1  nisimura 	case 0xff:
    379        1.1  nisimura 		bpp = 8;	/* XXX check monochrome bit in DIPSW */
    380        1.1  nisimura 		break;
    381        1.1  nisimura 	default:
    382        1.1  nisimura 	case 0x0f:
    383        1.1  nisimura 		bpp = 4;	/* XXX check monochrome bit in DIPSW */
    384        1.1  nisimura 		break;
    385        1.1  nisimura 	case 1:
    386        1.1  nisimura 		bpp = 1;
    387        1.1  nisimura 		break;
    388        1.1  nisimura 	}
    389        1.2  nisimura 	dc->dc_wid = 1280;
    390        1.1  nisimura 	dc->dc_ht = 1024;
    391        1.1  nisimura 	dc->dc_depth = bpp;
    392        1.1  nisimura 	dc->dc_rowbytes = 2048 / 8;
    393        1.1  nisimura 	dc->dc_cmsize = (bpp == 1) ? 0 : 1 << bpp;
    394        1.1  nisimura 	dc->dc_videobase = paddr;
    395        1.1  nisimura 
    396        1.4  nisimura #if 0 /* WHITE on BLACK XXX experiment resulted in WHITE on SKYBLUE... */
    397        1.1  nisimura 	if (hwplanemask == 0x0f) {
    398        1.1  nisimura 		/* XXX Need Bt454 initialization */
    399        1.1  nisimura 		struct bt454 *odac = (struct bt454 *)OMFB_RAMDAC;
    400        1.1  nisimura 		odac->bt_addr = 0;
    401        1.1  nisimura 		odac->bt_cmap = 0;
    402        1.1  nisimura 		odac->bt_cmap = 0;
    403        1.1  nisimura 		odac->bt_cmap = 0;
    404        1.1  nisimura 		for (i = 1; i < 16; i++) {
    405        1.1  nisimura 			odac->bt_cmap = 255;
    406        1.1  nisimura 			odac->bt_cmap = 255;
    407        1.1  nisimura 			odac->bt_cmap = 255;
    408        1.1  nisimura 		}
    409        1.1  nisimura 	}
    410        1.1  nisimura 	else if (hwplanemask == 0xff) {
    411        1.1  nisimura 		struct bt458 *ndac = (struct bt458 *)OMFB_RAMDAC;
    412        1.1  nisimura 
    413        1.1  nisimura 		ndac->bt_addr = 0x04;
    414        1.1  nisimura 		ndac->bt_ctrl = 0xff; /* all planes will be read */
    415        1.1  nisimura 		ndac->bt_ctrl = 0x00; /* all planes have non-blink */
    416        1.1  nisimura 		ndac->bt_ctrl = 0x43; /* pallete enabled, ovly plane */
    417        1.1  nisimura 		ndac->bt_ctrl = 0x00; /* no test mode */
    418        1.1  nisimura 		ndac->bt_addr = 0;
    419        1.1  nisimura 		ndac->bt_cmap = 0;
    420        1.1  nisimura 		ndac->bt_cmap = 0;
    421        1.1  nisimura 		ndac->bt_cmap = 0;
    422        1.1  nisimura 		for (i = 1; i < 256; i++) {
    423        1.1  nisimura 			ndac->bt_cmap = 255;
    424        1.1  nisimura 			ndac->bt_cmap = 255;
    425        1.1  nisimura 			ndac->bt_cmap = 255;
    426        1.1  nisimura 		}
    427        1.1  nisimura 	}
    428        1.1  nisimura #endif
    429        1.1  nisimura 
    430        1.1  nisimura 	/* adjust h/v orgin on screen */
    431        1.4  nisimura 	rfcnt.p.h = 7;
    432        1.4  nisimura 	rfcnt.p.v = -27;
    433        1.4  nisimura 	*(u_int32_t *)OMFB_RFCNT = rfcnt.u; /* single write of 0x007ffe6 */
    434        1.1  nisimura 
    435        1.1  nisimura 	/* clear the screen */
    436        1.1  nisimura 	*(u_int32_t *)OMFB_PLANEMASK = 0xff;
    437        1.1  nisimura 	((u_int32_t *)OMFB_ROPFUNC)[5] = ~0;	/* ROP copy */
    438        1.1  nisimura 	for (i = 0; i < dc->dc_ht * dc->dc_rowbytes/sizeof(u_int32_t); i++)
    439        1.4  nisimura 		*((u_int32_t *)dc->dc_videobase + i) = 0;
    440        1.1  nisimura 	*(u_int32_t *)OMFB_PLANEMASK = 0x01;
    441        1.1  nisimura 
    442        1.1  nisimura 	/* initialize the raster */
    443        1.1  nisimura 	rap = &dc->dc_raster;
    444        1.1  nisimura 	rap->width = dc->dc_wid;
    445        1.1  nisimura 	rap->height = dc->dc_ht;
    446        1.1  nisimura 	rap->depth = dc->dc_depth;
    447        1.1  nisimura 	rap->linelongs = dc->dc_rowbytes / sizeof(u_int32_t);
    448        1.1  nisimura 	rap->pixels = (u_int32_t *)dc->dc_videobase;
    449        1.1  nisimura 
    450        1.1  nisimura 	/* initialize the raster console blitter */
    451        1.1  nisimura 	rcp = &dc->dc_rcons;
    452        1.1  nisimura 	rcp->rc_sp = rap;
    453        1.1  nisimura 	rcp->rc_crow = rcp->rc_ccol = -1;
    454        1.1  nisimura 	rcp->rc_crowp = &rcp->rc_crow;
    455        1.1  nisimura 	rcp->rc_ccolp = &rcp->rc_ccol;
    456        1.1  nisimura 	rcons_init(rcp, 34, 80);
    457        1.1  nisimura 
    458        1.1  nisimura 	omfb_stdscreen.nrows = dc->dc_rcons.rc_maxrow;
    459        1.1  nisimura 	omfb_stdscreen.ncols = dc->dc_rcons.rc_maxcol;
    460        1.1  nisimura }
    461        1.1  nisimura 
    462        1.1  nisimura static int
    463        1.1  nisimura omfb_alloc_screen(v, type, cookiep, curxp, curyp, attrp)
    464        1.1  nisimura 	void *v;
    465        1.1  nisimura 	const struct wsscreen_descr *type;
    466        1.1  nisimura 	void **cookiep;
    467        1.1  nisimura 	int *curxp, *curyp;
    468        1.1  nisimura 	long *attrp;
    469        1.1  nisimura {
    470        1.1  nisimura 	struct omfb_softc *sc = v;
    471        1.1  nisimura 	long defattr;
    472        1.1  nisimura 
    473        1.1  nisimura 	if (sc->nscreens > 0)
    474        1.1  nisimura 		return (ENOMEM);
    475        1.1  nisimura 
    476        1.1  nisimura 	*cookiep = &sc->sc_dc->dc_rcons; /* one and only for now */
    477        1.1  nisimura 	*curxp = 0;
    478        1.1  nisimura 	*curyp = 0;
    479        1.8  junyoung 	(*omfb_emulops.allocattr)(&sc->sc_dc->dc_rcons, 0, 0, 0, &defattr);
    480        1.1  nisimura 	*attrp = defattr;
    481        1.1  nisimura 	sc->nscreens++;
    482        1.1  nisimura 	return (0);
    483        1.1  nisimura }
    484        1.1  nisimura 
    485        1.1  nisimura static void
    486        1.1  nisimura omfb_free_screen(v, cookie)
    487        1.1  nisimura 	void *v;
    488        1.1  nisimura 	void *cookie;
    489        1.1  nisimura {
    490        1.1  nisimura 	struct omfb_softc *sc = v;
    491        1.1  nisimura 
    492        1.1  nisimura 	if (sc->sc_dc == &omfb_console_dc)
    493        1.1  nisimura 		panic("omfb_free_screen: console");
    494        1.1  nisimura 
    495        1.1  nisimura 	sc->nscreens--;
    496        1.1  nisimura }
    497        1.1  nisimura 
    498        1.1  nisimura static int
    499        1.1  nisimura omfb_show_screen(v, cookie, waitok, cb, cbarg)
    500        1.1  nisimura 	void *v;
    501        1.1  nisimura 	void *cookie;
    502        1.1  nisimura 	int waitok;
    503        1.1  nisimura 	void (*cb) __P((void *, int, int));
    504        1.1  nisimura 	void *cbarg;
    505        1.1  nisimura {
    506        1.1  nisimura 	return 0;
    507        1.1  nisimura }
    508