Move the alloc_screen, free_screen and show_screen wsdisplay accessops to

the common frame buffer code, rather than duplicating it in every driver.
No functional change.

18 files changed, 346 insertions, 1367 deletions

diff --git a/sys/arch/sparc/dev/agten.c b/sys/arch/sparc/dev/agten.c
index 5ed2ac2492d..955d4df2420 100644
--- a/sys/arch/sparc/dev/agten.c
+++ b/sys/arch/sparc/dev/agten.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: agten.c,v 1.8 2005/03/07 16:44:50 miod Exp $	*/
+/*	$OpenBSD: agten.c,v 1.9 2005/03/23 17:16:34 miod Exp $	*/
 /*
  * Copyright (c) 2002, 2003, Miodrag Vallat.
  * All rights reserved.
@@ -74,7 +74,6 @@
 
 #include <dev/wscons/wsconsio.h>
 #include <dev/wscons/wsdisplayvar.h>
-#include <dev/wscons/wscons_raster.h>
 #include <dev/rasops/rasops.h>
 #include <machine/fbvar.h>
 
@@ -101,39 +100,34 @@ struct agten_softc {
 	struct agten_cmap sc_cmap;		/* shadow color map */
 
 	volatile u_int32_t *sc_i128_fb;
-
-	int	sc_nscreens;
 };
 
-int agten_ioctl(void *, u_long, caddr_t, int, struct proc *);
-int agten_alloc_screen(void *, const struct wsscreen_descr *, void **,
-    int *, int *, long *);
-void agten_free_screen(void *, void *);
-int agten_show_screen(void *, void *, int, void (*cb)(void *, int, int),
-    void *);
-paddr_t agten_mmap(void *, off_t, int);
-void agten_reset(struct agten_softc *);
-void agten_setcolor(void *, u_int, u_int8_t, u_int8_t, u_int8_t);
-
-static __inline__ void ibm561_write(struct agten_softc *, u_int32_t, u_int32_t);
-int agten_getcmap(struct agten_cmap *, struct wsdisplay_cmap *);
-int agten_putcmap(struct agten_cmap *, struct wsdisplay_cmap *);
-void agten_loadcmap(struct agten_softc *, u_int, u_int);
+int	agten_ioctl(void *, u_long, caddr_t, int, struct proc *);
+paddr_t	agten_mmap(void *, off_t, int);
+void	agten_reset(struct agten_softc *);
+void	agten_setcolor(void *, u_int, u_int8_t, u_int8_t, u_int8_t);
+
+static __inline__
+void	ibm561_write(struct agten_softc *, u_int32_t, u_int32_t);
+int	agten_getcmap(struct agten_cmap *, struct wsdisplay_cmap *);
+int	agten_putcmap(struct agten_cmap *, struct wsdisplay_cmap *);
+void	agten_loadcmap(struct agten_softc *, u_int, u_int);
 
 struct wsdisplay_accessops agten_accessops = {
 	agten_ioctl,
 	agten_mmap,
-	agten_alloc_screen,
-	agten_free_screen,
-	agten_show_screen,
+	NULL,	/* alloc_screen */
+	NULL,	/* free_screen */
+	NULL,	/* show_screen */
 	NULL,   /* load_font */
 	NULL,   /* scrollback */
 	NULL,   /* getchar */
 	NULL,	/* burner */
+	NULL	/* pollc */
 };
 
-int agtenmatch(struct device *, void *, void *);
-void agtenattach(struct device *, struct device *, void *);
+int	agtenmatch(struct device *, void *, void *);
+void	agtenattach(struct device *, struct device *, void *);
 
 struct cfattach agten_ca = {
 	sizeof(struct agten_softc), agtenmatch, agtenattach
@@ -224,12 +218,7 @@ agtenattach(struct device *parent, struct device *self, void *args)
 }
 
 int
-agten_ioctl(dev, cmd, data, flags, p)
-	void *dev;
-	u_long cmd;
-	caddr_t data;
-	int flags;
-	struct proc *p;
+agten_ioctl(void *dev, u_long cmd, caddr_t data, int flags, struct proc *p)
 {
 	struct agten_softc *sc = dev;
 	struct wsdisplay_cmap *cm;
@@ -285,15 +274,8 @@ agten_ioctl(dev, cmd, data, flags, p)
 	return (0);
 }
 
-/*
- * Return the address that would map the given device at the given
- * offset, allowing for the given protection, or return -1 for error.
- */
 paddr_t
-agten_mmap(v, offset, prot)
-	void *v;
-	off_t offset;
-	int prot;
+agten_mmap(void *v, off_t offset, int prot)
 {
 	struct agten_softc *sc = v;
 
@@ -306,14 +288,11 @@ agten_mmap(v, offset, prot)
 		    PMAP_NC);
 	}
 
-	return (-1);	/* not a user-map offset */
+	return (-1);
 }
 
 void
-agten_setcolor(v, index, r, g, b)
-	void *v;
-	u_int index;
-	u_int8_t r, g, b;
+agten_setcolor(void *v, u_int index, u_int8_t r, u_int8_t g, u_int8_t b)
 {
 	struct agten_softc *sc = v;
 
@@ -325,54 +304,6 @@ agten_setcolor(v, index, r, g, b)
 }
 
 int
-agten_alloc_screen(v, type, cookiep, curxp, curyp, attrp)
-	void *v;
-	const struct wsscreen_descr *type;
-	void **cookiep;
-	int *curxp, *curyp;
-	long *attrp;
-{
-	struct agten_softc *sc = v;
-
-	if (sc->sc_nscreens > 0)
-		return (ENOMEM);
-
-	*cookiep = &sc->sc_sunfb.sf_ro;
-	*curyp = 0;
-	*curxp = 0;
-	if (sc->sc_sunfb.sf_depth == 8) {
-		sc->sc_sunfb.sf_ro.ri_ops.alloc_attr(&sc->sc_sunfb.sf_ro,
-		    WSCOL_BLACK, WSCOL_WHITE, WSATTR_WSCOLORS, attrp);
-	} else {
-		sc->sc_sunfb.sf_ro.ri_ops.alloc_attr(&sc->sc_sunfb.sf_ro,
-		    0, 0, 0, attrp);
-	}
-	sc->sc_nscreens++;
-	return (0);
-}
-
-void
-agten_free_screen(v, cookie)
-	void *v;
-	void *cookie;
-{
-	struct agten_softc *sc = v;
-
-	sc->sc_nscreens--;
-}
-
-int
-agten_show_screen(v, cookie, waitok, cb, cbarg)
-	void *v;
-	void *cookie;
-	int waitok;
-	void (*cb)(void *, int, int);
-	void *cbarg;
-{
-	return (0);
-}
-
-int
 agten_getcmap(struct agten_cmap *cm, struct wsdisplay_cmap *rcm)
 {
 	u_int index = rcm->index, count = rcm->count;
diff --git a/sys/arch/sparc/dev/bwtwo.c b/sys/arch/sparc/dev/bwtwo.c
index e520df2d46d..3f137ed8746 100644
--- a/sys/arch/sparc/dev/bwtwo.c
+++ b/sys/arch/sparc/dev/bwtwo.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: bwtwo.c,v 1.31 2005/03/07 16:44:50 miod Exp $	*/
+/*	$OpenBSD: bwtwo.c,v 1.32 2005/03/23 17:16:34 miod Exp $	*/
 /*	$NetBSD: bwtwo.c,v 1.33 1997/05/24 20:16:02 pk Exp $ */
 
 /*
@@ -76,7 +76,6 @@
 
 #include <dev/wscons/wsconsio.h>
 #include <dev/wscons/wsdisplayvar.h>
-#include <dev/wscons/wscons_raster.h>
 #include <dev/rasops/rasops.h>
 #include <machine/fbvar.h>
 
@@ -90,29 +89,24 @@ struct bwtwo_softc {
 	struct rom_reg	sc_phys;	/* phys address description */
 	int	sc_bustype;		/* type of bus we live on */
 	int	sc_pixeloffset;		/* offset to framebuffer */
-	int	sc_nscreens;
 };
 
-int bwtwo_ioctl(void *, u_long, caddr_t, int, struct proc *);
-int bwtwo_alloc_screen(void *, const struct wsscreen_descr *, void **,
-    int *, int *, long *);
-void bwtwo_free_screen(void *, void *);
-int bwtwo_show_screen(void *, void *, int, void (*cb)(void *, int, int),
-    void *);
-paddr_t bwtwo_mmap(void *, off_t, int);
-void bwtwo_burner(void *, u_int, u_int);
-int bwtwo_intr(void *);
+void	bwtwo_burner(void *, u_int, u_int);
+int	bwtwo_intr(void *);
+int	bwtwo_ioctl(void *, u_long, caddr_t, int, struct proc *);
+paddr_t	bwtwo_mmap(void *, off_t, int);
 
 struct wsdisplay_accessops bwtwo_accessops = {
 	bwtwo_ioctl,
 	bwtwo_mmap,
-	bwtwo_alloc_screen,
-	bwtwo_free_screen,
-	bwtwo_show_screen,
+	NULL,	/* alloc_screen */
+	NULL,	/* free_screen */
+	NULL,	/* show_screen */
 	NULL,	/* load_font */
 	NULL,	/* scrollback */
 	NULL,	/* getchar */
 	bwtwo_burner,
+	NULL	/* pollc */
 };
 
 
@@ -128,13 +122,8 @@ struct cfdriver bwtwo_cd = {
 	NULL, "bwtwo", DV_DULL
 };
 
-/*
- * Match a bwtwo.
- */
 int
-bwtwomatch(parent, vcf, aux)
-	struct device *parent;
-	void *vcf, *aux;
+bwtwomatch(struct device *parent, void *vcf, void *aux)
 {
 	struct cfdata *cf = vcf;
 	struct confargs *ca = aux;
@@ -185,13 +174,8 @@ bwtwomatch(parent, vcf, aux)
 	return (0);
 }
 
-/*
- * Attach a display.
- */
 void
-bwtwoattach(parent, self, args)
-	struct device *parent, *self;
-	void *args;
+bwtwoattach(struct device *parent, struct device *self, void *args)
 {
 	struct bwtwo_softc *sc = (struct bwtwo_softc *)self;
 	struct confargs *ca = args;
@@ -307,12 +291,7 @@ obp_name:
 }
 
 int
-bwtwo_ioctl(v, cmd, data, flags, p)
-	void *v;
-	u_long cmd;
-	caddr_t data;
-	int flags;
-	struct proc *p;
+bwtwo_ioctl(void *v, u_long cmd, caddr_t data, int flags, struct proc *p)
 {
 	struct bwtwo_softc *sc = v;
 	struct wsdisplay_fbinfo *wdf;
@@ -352,15 +331,8 @@ bwtwo_ioctl(v, cmd, data, flags, p)
 	return (0);
 }
 
-/*
- * Return the address that would map the given device at the given
- * offset, allowing for the given protection, or return -1 for error.
- */
 paddr_t
-bwtwo_mmap(v, offset, prot)
-	void *v;
-	off_t offset;
-	int prot;
+bwtwo_mmap(void *v, off_t offset, int prot)
 {
 	struct bwtwo_softc *sc = v;
 
@@ -376,9 +348,7 @@ bwtwo_mmap(v, offset, prot)
 }
 
 void
-bwtwo_burner(v, on, flags)
-	void *v;
-	u_int on, flags;
+bwtwo_burner(void *v, u_int on, u_int flags)
 {
 	struct bwtwo_softc *sc = v;
 	int s;
@@ -386,7 +356,7 @@ bwtwo_burner(v, on, flags)
 #if defined(SUN4)
 	if (CPU_ISSUN4 && (sc->sc_bustype == BUS_OBIO)) {
 		if (ISSET(sc->sc_sunfb.sf_flags, FB_PFOUR)) {
-			fb_pfour_set_video(&sc->sc_sunfb, on);
+			fb_pfour_burner(v, on, flags);
 			return;
 		}
 		if (on)
@@ -410,46 +380,3 @@ bwtwo_burner(v, on, flags)
 	}
 	splx(s);
 }
-
-int
-bwtwo_alloc_screen(v, type, cookiep, curxp, curyp, attrp)
-	void *v;
-	const struct wsscreen_descr *type;
-	void **cookiep;
-	int *curxp, *curyp;
-	long *attrp;
-{
-	struct bwtwo_softc *sc = v;
-
-	if (sc->sc_nscreens > 0)
-		return (ENOMEM);
-
-	*cookiep = &sc->sc_sunfb.sf_ro;
-	*curyp = 0;
-	*curxp = 0;
-	sc->sc_sunfb.sf_ro.ri_ops.alloc_attr(&sc->sc_sunfb.sf_ro,
-	    0, 0, 0, attrp);
-	sc->sc_nscreens++;
-	return (0);
-}
-
-void
-bwtwo_free_screen(v, cookie)
-	void *v;
-	void *cookie;
-{
-	struct bwtwo_softc *sc = v;
-
-	sc->sc_nscreens--;
-}
-
-int
-bwtwo_show_screen(v, cookie, waitok, cb, cbarg)
-	void *v;
-	void *cookie;
-	int waitok;
-	void (*cb)(void *, int, int);
-	void *cbarg;
-{
-	return (0);
-}
diff --git a/sys/arch/sparc/dev/cgeight.c b/sys/arch/sparc/dev/cgeight.c
index 987b579cfae..3cb06994848 100644
--- a/sys/arch/sparc/dev/cgeight.c
+++ b/sys/arch/sparc/dev/cgeight.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: cgeight.c,v 1.24 2005/03/07 16:44:50 miod Exp $	*/
+/*	$OpenBSD: cgeight.c,v 1.25 2005/03/23 17:16:34 miod Exp $	*/
 /*	$NetBSD: cgeight.c,v 1.13 1997/05/24 20:16:04 pk Exp $	*/
 
 /*
@@ -71,7 +71,6 @@
 
 #include <dev/wscons/wsconsio.h>
 #include <dev/wscons/wsdisplayvar.h>
-#include <dev/wscons/wscons_raster.h>
 #include <dev/rasops/rasops.h>
 #include <machine/fbvar.h>
 
@@ -85,29 +84,23 @@ struct cgeight_softc {
 	struct	rom_reg	sc_phys;	/* display RAM (phys addr) */
 	volatile struct fbcontrol *sc_fbc;	/* Brooktree registers */
 	union	bt_cmap sc_cmap;	/* Brooktree color map */
-	int	sc_nscreens;
 };
 
-int cgeight_ioctl(void *, u_long, caddr_t, int, struct proc *);
-int cgeight_alloc_screen(void *, const struct wsscreen_descr *, void **,
-    int *, int *, long *);
-void cgeight_free_screen(void *, void *);
-int cgeight_show_screen(void *, void *, int, void (*cb)(void *, int, int),
-    void *);
-paddr_t cgeight_mmap(void *, off_t, int);
-void cgeight_reset(struct cgeight_softc *);
-void cgeight_burner(void *, u_int, u_int);
+int	cgeight_ioctl(void *, u_long, caddr_t, int, struct proc *);
+paddr_t	cgeight_mmap(void *, off_t, int);
+void	cgeight_reset(struct cgeight_softc *);
 
 struct wsdisplay_accessops cgeight_accessops = {
 	cgeight_ioctl,
 	cgeight_mmap,
-	cgeight_alloc_screen,
-	cgeight_free_screen,
-	cgeight_show_screen,
+	NULL,	/* alloc_screen */
+	NULL,	/* free_screen */
+	NULL,	/* show_screen */
 	NULL,	/* load_font */
 	NULL,	/* scrollback */
 	NULL,	/* getchar */
-	cgeight_burner,
+	fb_pfour_burner,
+	NULL	/* pollc */
 };
 
 void	cgeightattach(struct device *, struct device *, void *);
@@ -121,13 +114,8 @@ struct cfdriver cgeight_cd = {
 	NULL, "cgeight", DV_DULL
 };
 
-/*
- * Match a cgeight.
- */
 int
-cgeightmatch(parent, vcf, aux)
-	struct device *parent;
-	void *vcf, *aux;
+cgeightmatch(struct device *parent, void *vcf, void *aux)
 {
 	struct cfdata *cf = vcf;
 	struct confargs *ca = aux;
@@ -161,13 +149,8 @@ cgeightmatch(parent, vcf, aux)
 	return (0);
 }
 
-/*
- * Attach a display.
- */
 void
-cgeightattach(parent, self, args)
-	struct device *parent, *self;
-	void *args;
+cgeightattach(struct device *parent, struct device *self, void *args)
 {
 	struct cgeight_softc *sc = (struct cgeight_softc *)self;
 	struct confargs *ca = args;
@@ -206,7 +189,7 @@ cgeightattach(parent, self, args)
 		sc->sc_cmap.cm_chip[i] = bt->bt_cmap;
 
 	/* enable video */
-	cgeight_burner(sc, 1, 0);
+	fb_pfour_burner(sc, 1, 0);
 	BT_INIT(bt, 0);
 
 	fb_setsize(&sc->sc_sunfb, 24, 1152, 900, node, ca->ca_bustype);
@@ -226,12 +209,7 @@ cgeightattach(parent, self, args)
 }
 
 int
-cgeight_ioctl(v, cmd, data, flags, p)
-	void *v;
-	u_long cmd;
-	caddr_t data;
-	int flags;
-	struct proc *p;
+cgeight_ioctl(void *v, u_long cmd, caddr_t data, int flags, struct proc *p)
 {
 	struct cgeight_softc *sc = v;
 	struct wsdisplay_cmap *cm;
@@ -281,58 +259,8 @@ cgeight_ioctl(v, cmd, data, flags, p)
 	return (0);
 }
 
-int
-cgeight_alloc_screen(v, type, cookiep, curxp, curyp, attrp)
-	void *v;
-	const struct wsscreen_descr *type;
-	void **cookiep;
-	int *curxp, *curyp;
-	long *attrp;
-{
-	struct cgeight_softc *sc = v;
-
-	if (sc->sc_nscreens > 0)
-		return (ENOMEM);
-
-	*cookiep = &sc->sc_sunfb.sf_ro;
-	*curyp = 0;
-	*curxp = 0;
-	sc->sc_sunfb.sf_ro.ri_ops.alloc_attr(&sc->sc_sunfb.sf_ro,
-	    0, 0, 0, attrp);
-	sc->sc_nscreens++;
-	return (0);
-}
-
-void
-cgeight_free_screen(v, cookie)
-	void *v;
-	void *cookie;
-{
-	struct cgeight_softc *sc = v;
-
-	sc->sc_nscreens--;
-}
-
-int
-cgeight_show_screen(v, cookie, waitok, cb, cbarg)
-	void *v;
-	void *cookie;
-	int waitok;
-	void (*cb)(void *, int, int);
-	void *cbarg;
-{
-	return (0);
-}
-
-/*
- * Return the address that would map the given device at the given
- * offset, allowing for the given protection, or return -1 for error.
- */
 paddr_t
-cgeight_mmap(v, offset, prot)
-	void *v;
-	off_t offset;
-	int prot;
+cgeight_mmap(void *v, off_t offset, int prot)
 {
 	struct cgeight_softc *sc = v;
 
@@ -345,15 +273,5 @@ cgeight_mmap(v, offset, prot)
 		    PFOUR_COLOR_OFF_OVERLAY) | PMAP_NC);
 	}
 
-	return (-1);	/* not a user-map offset */
-}
-
-void
-cgeight_burner(v, on, flags)
-	void *v;
-	u_int on, flags;
-{
-	struct cgeight_softc *sc = v;
-
-	fb_pfour_set_video(&sc->sc_sunfb, on);
+	return (-1);
 }
diff --git a/sys/arch/sparc/dev/cgfour.c b/sys/arch/sparc/dev/cgfour.c
index f1a44e4207d..c263608affa 100644
--- a/sys/arch/sparc/dev/cgfour.c
+++ b/sys/arch/sparc/dev/cgfour.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: cgfour.c,v 1.24 2005/03/07 16:44:50 miod Exp $	*/
+/*	$OpenBSD: cgfour.c,v 1.25 2005/03/23 17:16:34 miod Exp $	*/
 /*	$NetBSD: cgfour.c,v 1.13 1997/05/24 20:16:06 pk Exp $	*/
 
 /*
@@ -71,7 +71,6 @@
 
 #include <dev/wscons/wsconsio.h>
 #include <dev/wscons/wsdisplayvar.h>
-#include <dev/wscons/wscons_raster.h>
 #include <dev/rasops/rasops.h>
 #include <machine/fbvar.h>
 
@@ -85,29 +84,23 @@ struct cgfour_softc {
 	struct rom_reg	sc_phys;	/* display RAM (phys addr) */
 	volatile struct fbcontrol *sc_fbc;	/* Brooktree registers */
 	union	bt_cmap sc_cmap;	/* Brooktree color map */
-	int	sc_nscreens;
 };
 
-int cgfour_ioctl(void *, u_long, caddr_t, int, struct proc *);
-int cgfour_alloc_screen(void *, const struct wsscreen_descr *, void **,
-    int *, int *, long *);
-void cgfour_free_screen(void *, void *);
-int cgfour_show_screen(void *, void *, int, void (*cb)(void *, int, int),
-    void *);
-paddr_t cgfour_mmap(void *, off_t, int);
-void cgfour_setcolor(void *, u_int, u_int8_t, u_int8_t, u_int8_t);
-void cgfour_burner(void *, u_int, u_int);
+int	cgfour_ioctl(void *, u_long, caddr_t, int, struct proc *);
+paddr_t	cgfour_mmap(void *, off_t, int);
+void	cgfour_setcolor(void *, u_int, u_int8_t, u_int8_t, u_int8_t);
 
 struct wsdisplay_accessops cgfour_accessops = {
 	cgfour_ioctl,
 	cgfour_mmap,
-	cgfour_alloc_screen,
-	cgfour_free_screen,
-	cgfour_show_screen,
+	NULL,	/* alloc_screen */
+	NULL,	/* free_screen */
+	NULL,	/* show_screen */
 	NULL,	/* load_font */
 	NULL,	/* scrollback */
 	NULL,	/* getchar */
-	cgfour_burner,
+	fb_pfour_burner,
+	NULL	/* pollc */
 };
 
 void	cgfourattach(struct device *, struct device *, void *);
@@ -121,13 +114,8 @@ struct cfdriver cgfour_cd = {
 	NULL, "cgfour", DV_DULL
 };
 
-/*
- * Match a cgfour.
- */
 int
-cgfourmatch(parent, vcf, aux)
-	struct device *parent;
-	void *vcf, *aux;
+cgfourmatch(struct device *parent, void *vcf, void *aux)
 {
 	struct cfdata *cf = vcf;
 	struct confargs *ca = aux;
@@ -158,13 +146,8 @@ cgfourmatch(parent, vcf, aux)
 	return (0);
 }
 
-/*
- * Attach a display.
- */
 void
-cgfourattach(parent, self, args)
-	struct device *parent, *self;
-	void *args;
+cgfourattach(struct device *parent, struct device *self, void *args)
 {
 	struct cgfour_softc *sc = (struct cgfour_softc *)self;
 	struct confargs *ca = args;
@@ -207,7 +190,7 @@ cgfourattach(parent, self, args)
 		((char *)&sc->sc_cmap)[i] = bt->bt_cmap >> 24;
 
 	/* enable video */
-	cgfour_burner(sc, 1, 0);
+	fb_pfour_burner(sc, 1, 0);
 	BT_INIT(bt, 24);
 
 	/*
@@ -236,12 +219,7 @@ cgfourattach(parent, self, args)
 }
 
 int
-cgfour_ioctl(v, cmd, data, flags, p)
-	void *v;
-	u_long cmd;
-	caddr_t data;
-	int flags;
-	struct proc *p;
+cgfour_ioctl(void *v, u_long cmd, caddr_t data, int flags, struct proc *p)
 {
 	struct cgfour_softc *sc = v;
 	struct wsdisplay_fbinfo *wdf;
@@ -295,59 +273,8 @@ cgfour_ioctl(v, cmd, data, flags, p)
 	return (0);
 }
 
-int
-cgfour_alloc_screen(v, type, cookiep, curxp, curyp, attrp)
-	void *v;
-	const struct wsscreen_descr *type;
-	void **cookiep;
-	int *curxp, *curyp;
-	long *attrp;
-{
-	struct cgfour_softc *sc = v;
-
-	if (sc->sc_nscreens > 0)
-		return (ENOMEM);
-
-	*cookiep = &sc->sc_sunfb.sf_ro;
-	*curyp = 0;
-	*curxp = 0;
-	sc->sc_sunfb.sf_ro.ri_ops.alloc_attr(&sc->sc_sunfb.sf_ro,
-	    WSCOL_BLACK, WSCOL_WHITE, WSATTR_WSCOLORS, attrp);
-	sc->sc_nscreens++;
-	return (0);
-}
-
-void
-cgfour_free_screen(v, cookie)
-	void *v;
-	void *cookie;
-{
-	struct cgfour_softc *sc = v;
-
-	sc->sc_nscreens--;
-}
-
-int
-cgfour_show_screen(v, cookie, waitok, cb, cbarg)
-	void *v;
-	void *cookie;
-	int waitok;
-	void (*cb)(void *, int, int);
-	void *cbarg;
-{
-	return (0);
-}
-
-
-/*
- * Return the address that would map the given device at the given
- * offset, allowing for the given protection, or return -1 for error.
- */
 paddr_t
-cgfour_mmap(v, offset, prot)
-	void *v;
-	off_t offset;
-	int prot;
+cgfour_mmap(void *v, off_t offset, int prot)
 {
 	struct cgfour_softc *sc = v;
 
@@ -363,22 +290,9 @@ cgfour_mmap(v, offset, prot)
 }
 
 void
-cgfour_setcolor(v, index, r, g, b)
-	void *v;
-	u_int index;
-	u_int8_t r, g, b;
+cgfour_setcolor(void *v, u_int index, u_int8_t r, u_int8_t g, u_int8_t b)
 {
 	struct cgfour_softc *sc = v;
 
 	bt_setcolor(&sc->sc_cmap, &sc->sc_fbc->fbc_dac, index, r, g, b, 1);
 }
-
-void
-cgfour_burner(v, on, flags)
-	void *v;
-	u_int on, flags;
-{
-	struct cgfour_softc *sc = v;
-
-	fb_pfour_set_video(&sc->sc_sunfb, on);
-}
diff --git a/sys/arch/sparc/dev/cgfourteen.c b/sys/arch/sparc/dev/cgfourteen.c
index d51df479f5c..5422fed082b 100644
--- a/sys/arch/sparc/dev/cgfourteen.c
+++ b/sys/arch/sparc/dev/cgfourteen.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: cgfourteen.c,v 1.30 2005/03/15 18:50:43 miod Exp $	*/
+/*	$OpenBSD: cgfourteen.c,v 1.31 2005/03/23 17:16:34 miod Exp $	*/
 /*	$NetBSD: cgfourteen.c,v 1.7 1997/05/24 20:16:08 pk Exp $ */
 
 /*
@@ -101,7 +101,6 @@
 
 #include <dev/wscons/wsconsio.h>
 #include <dev/wscons/wsdisplayvar.h>
-#include <dev/wscons/wscons_raster.h>
 #include <dev/rasops/rasops.h>
 #include <machine/fbvar.h>
 
@@ -140,15 +139,9 @@ struct cgfourteen_softc {
 	size_t	sc_vramsize;		/* total video memory size */
 
 	struct	intrhand sc_ih;
-	int	sc_nscreens;
 };
 
 int	cgfourteen_ioctl(void *, u_long, caddr_t, int, struct proc *);
-int	cgfourteen_alloc_screen(void *, const struct wsscreen_descr *, void **,
-	    int *, int *, long *);
-void	cgfourteen_free_screen(void *, void *);
-int	cgfourteen_show_screen(void *, void *, int, void (*)(void *, int, int),
-	    void *);
 paddr_t	cgfourteen_mmap(void *, off_t, int);
 void	cgfourteen_reset(struct cgfourteen_softc *, int);
 void	cgfourteen_burner(void *, u_int, u_int);
@@ -164,13 +157,14 @@ void	cgfourteen_setcolor(void *, u_int, u_int8_t, u_int8_t, u_int8_t);
 struct wsdisplay_accessops cgfourteen_accessops = {
 	cgfourteen_ioctl,
 	cgfourteen_mmap,
-	cgfourteen_alloc_screen,
-	cgfourteen_free_screen,
-	cgfourteen_show_screen,
+	NULL,	/* alloc_screen */
+	NULL,	/* free_screen */
+	NULL,	/* show_screen */
 	NULL,	/* load_font */
 	NULL,	/* scrollback */
 	NULL,	/* getchar */
 	cgfourteen_burner,
+	NULL	/* pollc */
 };
 
 void	cgfourteenattach(struct device *, struct device *, void *);
@@ -411,39 +405,6 @@ cgfourteen_ioctl(void *dev, u_long cmd, caddr_t data, int flags, struct proc *p)
 	return (0);
 }
 
-int
-cgfourteen_alloc_screen(void *v, const struct wsscreen_descr *type,
-    void **cookiep, int *curxp, int *curyp, long *attrp)
-{
-	struct cgfourteen_softc *sc = v;
-
-	if (sc->sc_nscreens > 0)
-		return (ENOMEM);
-
-	*cookiep = &sc->sc_sunfb.sf_ro;
-	*curyp = 0;
-	*curxp = 0;
-	sc->sc_sunfb.sf_ro.ri_ops.alloc_attr(&sc->sc_sunfb.sf_ro,
-	    WSCOL_BLACK, WSCOL_WHITE, WSATTR_WSCOLORS, attrp);
-	sc->sc_nscreens++;
-	return (0);
-}
-
-void
-cgfourteen_free_screen(void *v, void *cookie)
-{
-	struct cgfourteen_softc *sc = v;
-
-	sc->sc_nscreens--;
-}
-
-int
-cgfourteen_show_screen(void *v, void *cookie, int waitok,
-    void (*cb)(void *, int, int), void *cbarg)
-{
-	return (0);
-}
-
 /*
  * Return the address that would map the given device at the given
  * offset, allowing for the given protection, or return -1 for error.
diff --git a/sys/arch/sparc/dev/cgsix.c b/sys/arch/sparc/dev/cgsix.c
index b3195816b2e..9c1fcde54da 100644
--- a/sys/arch/sparc/dev/cgsix.c
+++ b/sys/arch/sparc/dev/cgsix.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: cgsix.c,v 1.32 2005/03/07 16:44:50 miod Exp $	*/
+/*	$OpenBSD: cgsix.c,v 1.33 2005/03/23 17:16:34 miod Exp $	*/
 /*	$NetBSD: cgsix.c,v 1.33 1997/08/07 19:12:30 pk Exp $ */
 
 /*
@@ -97,7 +97,6 @@
 
 #include <dev/wscons/wsconsio.h>
 #include <dev/wscons/wsdisplayvar.h>
-#include <dev/wscons/wscons_raster.h>
 #include <dev/rasops/rasops.h>
 #include <machine/fbvar.h>
 
@@ -121,40 +120,35 @@ struct cgsix_softc {
 	volatile struct cgsix_tec_xxx *sc_tec;	/* TEC registers */
 	union	bt_cmap sc_cmap;	/* Brooktree color map */
 	struct	intrhand sc_ih;
-	int	sc_nscreens;
 };
 
-int cgsix_ioctl(void *, u_long, caddr_t, int, struct proc *);
-int cgsix_alloc_screen(void *, const struct wsscreen_descr *, void **,
-    int *, int *, long *);
-void cgsix_free_screen(void *, void *);
-int cgsix_show_screen(void *, void *, int, void (*cb)(void *, int, int),
-    void *);
-paddr_t cgsix_mmap(void *, off_t, int);
-void cgsix_setcolor(void *, u_int, u_int8_t, u_int8_t, u_int8_t);
-static __inline__ void cgsix_loadcmap_deferred(struct cgsix_softc *,
-    u_int, u_int);
-void cgsix_reset(struct cgsix_softc *, u_int);
-void cgsix_burner(void *, u_int, u_int);
-int cgsix_intr(void *);
-
-void cgsix_ras_init(struct cgsix_softc *);
-void cgsix_ras_copyrows(void *, int, int, int);
-void cgsix_ras_copycols(void *, int, int, int, int);
-void cgsix_ras_erasecols(void *, int, int, int, long int);
-void cgsix_ras_eraserows(void *, int, int, long int);
-void cgsix_ras_do_cursor(struct rasops_info *);
+void	cgsix_burner(void *, u_int, u_int);
+int	cgsix_intr(void *);
+int	cgsix_ioctl(void *, u_long, caddr_t, int, struct proc *);
+static __inline__
+void	cgsix_loadcmap_deferred(struct cgsix_softc *, u_int, u_int);
+paddr_t	cgsix_mmap(void *, off_t, int);
+void	cgsix_reset(struct cgsix_softc *, u_int);
+void	cgsix_setcolor(void *, u_int, u_int8_t, u_int8_t, u_int8_t);
+
+void	cgsix_ras_copyrows(void *, int, int, int);
+void	cgsix_ras_copycols(void *, int, int, int, int);
+void	cgsix_ras_do_cursor(struct rasops_info *);
+void	cgsix_ras_erasecols(void *, int, int, int, long);
+void	cgsix_ras_eraserows(void *, int, int, long);
+void	cgsix_ras_init(struct cgsix_softc *);
 
 struct wsdisplay_accessops cgsix_accessops = {
 	cgsix_ioctl,
 	cgsix_mmap,
-	cgsix_alloc_screen,
-	cgsix_free_screen,
-	cgsix_show_screen,
+	NULL,	/* alloc_screen */
+	NULL,	/* free_screen */
+	NULL,	/* show_screen */
 	NULL,	/* load_font */
 	NULL,	/* scrollback */
 	NULL,	/* getchar */
 	cgsix_burner,
+	NULL	/* pollc */
 };
 
 int	cgsixmatch(struct device *, void *, void *);
@@ -168,13 +162,8 @@ struct cfdriver cgsix_cd = {
 	NULL, "cgsix", DV_DULL
 };
 
-/*
- * Match a cgsix.
- */
 int
-cgsixmatch(parent, vcf, aux)
-	struct device *parent;
-	void *vcf, *aux;
+cgsixmatch(struct device *parent, void *vcf, void *aux)
 {
 	struct cfdata *cf = vcf;
 	struct confargs *ca = aux;
@@ -216,13 +205,8 @@ cgsixmatch(parent, vcf, aux)
 	return (0);
 }
 
-/*
- * Attach a display.
- */
 void
-cgsixattach(parent, self, args)
-	struct device *parent, *self;
-	void *args;
+cgsixattach(struct device *parent, struct device *self, void *args)
 {
 	struct cgsix_softc *sc = (struct cgsix_softc *)self;
 	struct confargs *ca = args;
@@ -372,12 +356,7 @@ cgsixattach(parent, self, args)
 }
 
 int
-cgsix_ioctl(dev, cmd, data, flags, p)
-	void *dev;
-	u_long cmd;
-	caddr_t data;
-	int flags;
-	struct proc *p;
+cgsix_ioctl(void *dev, u_long cmd, caddr_t data, int flags, struct proc *p)
 {
 	struct cgsix_softc *sc = dev;
 	struct wsdisplay_cmap *cm;
@@ -430,56 +409,11 @@ cgsix_ioctl(dev, cmd, data, flags, p)
 	return (0);
 }
 
-int
-cgsix_alloc_screen(v, type, cookiep, curxp, curyp, attrp)
-	void *v;
-	const struct wsscreen_descr *type;
-	void **cookiep;
-	int *curxp, *curyp;
-	long *attrp;
-{
-	struct cgsix_softc *sc = v;
-
-	if (sc->sc_nscreens > 0)
-		return (ENOMEM);
-
-	*cookiep = &sc->sc_sunfb.sf_ro;
-	*curyp = 0;
-	*curxp = 0;
-	sc->sc_sunfb.sf_ro.ri_ops.alloc_attr(&sc->sc_sunfb.sf_ro,
-	    WSCOL_BLACK, WSCOL_WHITE, WSATTR_WSCOLORS, attrp);
-	sc->sc_nscreens++;
-	return (0);
-}
-
-void
-cgsix_free_screen(v, cookie)
-	void *v;
-	void *cookie;
-{
-	struct cgsix_softc *sc = v;
-
-	sc->sc_nscreens--;
-}
-
-int
-cgsix_show_screen(v, cookie, waitok, cb, cbarg)
-	void *v;
-	void *cookie;
-	int waitok;
-	void (*cb)(void *, int, int);
-	void *cbarg;
-{
-	return (0);
-}
-
 /*
  * Clean up hardware state (e.g., after bootup or after X crashes).
  */
 void
-cgsix_reset(sc, fhcrev)
-	struct cgsix_softc *sc;
-	u_int fhcrev;
+cgsix_reset(struct cgsix_softc *sc, u_int fhcrev)
 {
 	volatile struct cgsix_tec_xxx *tec;
 	int fhc;
@@ -514,15 +448,8 @@ cgsix_reset(sc, fhcrev)
 	bt->bt_ctrl |= 0x03 << 24;
 }
 
-/*
- * Return the address that would map the given device at the given
- * offset, allowing for the given protection, or return -1 for error.
- */
 paddr_t
-cgsix_mmap(v, offset, prot)
-	void *v;
-	off_t offset;
-	int prot;
+cgsix_mmap(void *v, off_t offset, int prot)
 {
 	struct cgsix_softc *sc = v;
 
@@ -535,14 +462,11 @@ cgsix_mmap(v, offset, prot)
 		    PMAP_NC);
 	}
 
-	return (-1);	/* not a user-map offset */
+	return (-1);
 }
 
 void
-cgsix_setcolor(v, index, r, g, b)
-	void *v;
-	u_int index;
-	u_int8_t r, g, b;
+cgsix_setcolor(void *v, u_int index, u_int8_t r, u_int8_t g, u_int8_t b)
 {
 	struct cgsix_softc *sc = v;
 
@@ -561,9 +485,7 @@ cgsix_loadcmap_deferred(struct cgsix_softc *sc, u_int start, u_int ncolors)
 }
 
 void
-cgsix_burner(v, on, flags)
-	void *v;
-	u_int on, flags;
+cgsix_burner(void *v, u_int on, u_int flags)
 {
 	struct cgsix_softc *sc = v;
 	int s;
@@ -583,8 +505,7 @@ cgsix_burner(v, on, flags)
 }
 
 int
-cgsix_intr(v)
-	void *v;
+cgsix_intr(void *v)
 {
 	struct cgsix_softc *sc = v;
 	u_int32_t thcm;
@@ -618,8 +539,7 @@ cgsix_intr(v)
 	while ((fbc)->fbc_s & FBC_S_GXINPROGRESS)
 
 void
-cgsix_ras_init(sc)
-	struct cgsix_softc *sc;
+cgsix_ras_init(struct cgsix_softc *sc)
 {
 	u_int32_t m;
 
@@ -631,9 +551,7 @@ cgsix_ras_init(sc)
 }
 
 void
-cgsix_ras_copyrows(cookie, src, dst, n)
-	void *cookie;
-	int src, dst, n;
+cgsix_ras_copyrows(void *cookie, int src, int dst, int n)
 {
 	struct rasops_info *ri = cookie;
 	struct cgsix_softc *sc = ri->ri_hw;
@@ -681,9 +599,7 @@ cgsix_ras_copyrows(cookie, src, dst, n)
 }
 
 void
-cgsix_ras_copycols(cookie, row, src, dst, n)
-	void *cookie;
-	int row, src, dst, n;
+cgsix_ras_copycols(void *cookie, int row, int src, int dst, int n)
 {
 	struct rasops_info *ri = cookie;
 	struct cgsix_softc *sc = ri->ri_hw;
@@ -734,10 +650,7 @@ cgsix_ras_copycols(cookie, row, src, dst, n)
 }
 
 void
-cgsix_ras_erasecols(cookie, row, col, n, attr)
-	void *cookie;
-	int row, col, n;
-	long int attr;
+cgsix_ras_erasecols(void *cookie, int row, int col, int n, long attr)
 {
 	struct rasops_info *ri = cookie;
 	struct cgsix_softc *sc = ri->ri_hw;
@@ -776,10 +689,7 @@ cgsix_ras_erasecols(cookie, row, col, n, attr)
 }
 
 void
-cgsix_ras_eraserows(cookie, row, n, attr)
-	void *cookie;
-	int row, n;
-	long int attr;
+cgsix_ras_eraserows(void *cookie, int row, int n, long attr)
 {
 	struct rasops_info *ri = cookie;
 	struct cgsix_softc *sc = ri->ri_hw;
@@ -823,8 +733,7 @@ cgsix_ras_eraserows(cookie, row, n, attr)
 }
 
 void
-cgsix_ras_do_cursor(ri)
-	struct rasops_info *ri;
+cgsix_ras_do_cursor(struct rasops_info *ri)
 {
 	struct cgsix_softc *sc = ri->ri_hw;
 	int row, col;
diff --git a/sys/arch/sparc/dev/cgthree.c b/sys/arch/sparc/dev/cgthree.c
index 949098ddc52..e14ce681908 100644
--- a/sys/arch/sparc/dev/cgthree.c
+++ b/sys/arch/sparc/dev/cgthree.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: cgthree.c,v 1.28 2005/03/07 16:44:50 miod Exp $	*/
+/*	$OpenBSD: cgthree.c,v 1.29 2005/03/23 17:16:34 miod Exp $	*/
 /*	$NetBSD: cgthree.c,v 1.33 1997/05/24 20:16:11 pk Exp $ */
 
 /*
@@ -96,7 +96,6 @@
 
 #include <dev/wscons/wsconsio.h>
 #include <dev/wscons/wsdisplayvar.h>
-#include <dev/wscons/wscons_raster.h>
 #include <dev/rasops/rasops.h>
 #include <machine/fbvar.h>
 
@@ -113,32 +112,27 @@ struct cgthree_softc {
 	volatile struct fbcontrol *sc_fbc;	/* Brooktree registers */
 	union	bt_cmap sc_cmap;	/* Brooktree color map */
 	struct intrhand sc_ih;
-	int	sc_nscreens;
 };
 
-int cgthree_ioctl(void *, u_long, caddr_t, int, struct proc *);
-int cgthree_alloc_screen(void *, const struct wsscreen_descr *, void **,
-    int *, int *, long *);
-void cgthree_free_screen(void *, void *);
-int cgthree_show_screen(void *, void *, int, void (*cb)(void *, int, int),
-    void *);
-paddr_t cgthree_mmap(void *, off_t, int);
-void cgthree_setcolor(void *, u_int, u_int8_t, u_int8_t, u_int8_t);
-static __inline__ void cgthree_loadcmap_deferred(struct cgthree_softc *,
-    u_int, u_int);
-void cgthree_burner(void *, u_int, u_int);
-int cgthree_intr(void *);
+void	cgthree_burner(void *, u_int, u_int);
+int	cgthree_intr(void *);
+int	cgthree_ioctl(void *, u_long, caddr_t, int, struct proc *);
+static __inline__
+void	cgthree_loadcmap_deferred(struct cgthree_softc *, u_int, u_int);
+paddr_t	cgthree_mmap(void *, off_t, int);
+void	cgthree_setcolor(void *, u_int, u_int8_t, u_int8_t, u_int8_t);
 
 struct wsdisplay_accessops cgthree_accessops = {
 	cgthree_ioctl,
 	cgthree_mmap,
-	cgthree_alloc_screen,
-	cgthree_free_screen,
-	cgthree_show_screen,
+	NULL,	/* alloc_screen */
+	NULL,	/* free_screen */
+	NULL,	/* show_screen */
 	NULL,	/* load_font */
 	NULL,	/* scrollback */
 	NULL,	/* getchar */
 	cgthree_burner,
+	NULL	/* pollc */
 };
 
 int	cgthreematch(struct device *, void *, void *);
@@ -174,13 +168,8 @@ struct cg3_videoctrl {
 	},
 };
 
-/*
- * Match a cgthree.
- */
 int
-cgthreematch(parent, vcf, aux)
-	struct device *parent;
-	void *vcf, *aux;
+cgthreematch(struct device *parent, void *vcf, void *aux)
 {
 	struct cfdata *cf = vcf;
 	struct confargs *ca = aux;
@@ -197,13 +186,8 @@ cgthreematch(parent, vcf, aux)
 	return (probeget(ra->ra_vaddr, 4) != -1);
 }
 
-/*
- * Attach a display.
- */
 void
-cgthreeattach(parent, self, args)
-	struct device *parent, *self;
-	void *args;
+cgthreeattach(struct device *parent, struct device *self, void *args)
 {
 	struct cgthree_softc *sc = (struct cgthree_softc *)self;
 	struct confargs *ca = args;
@@ -323,12 +307,7 @@ cgthreeattach(parent, self, args)
 }
 
 int
-cgthree_ioctl(v, cmd, data, flags, p)
-	void *v;
-	u_long cmd;
-	caddr_t data;
-	int flags;
-	struct proc *p;
+cgthree_ioctl(void *v, u_long cmd, caddr_t data, int flags, struct proc *p)
 {
 	struct cgthree_softc *sc = v;
 	struct wsdisplay_fbinfo *wdf;
@@ -381,58 +360,8 @@ cgthree_ioctl(v, cmd, data, flags, p)
 	return (0);
 }
 
-int
-cgthree_alloc_screen(v, type, cookiep, curxp, curyp, attrp)
-	void *v;
-	const struct wsscreen_descr *type;
-	void **cookiep;
-	int *curxp, *curyp;
-	long *attrp;
-{
-	struct cgthree_softc *sc = v;
-
-	if (sc->sc_nscreens > 0)
-		return (ENOMEM);
-
-	*cookiep = &sc->sc_sunfb.sf_ro;
-	*curyp = 0;
-	*curxp = 0;
-	sc->sc_sunfb.sf_ro.ri_ops.alloc_attr(&sc->sc_sunfb.sf_ro,
-	    WSCOL_BLACK, WSCOL_WHITE, WSATTR_WSCOLORS, attrp);
-	sc->sc_nscreens++;
-	return (0);
-}
-
-void
-cgthree_free_screen(v, cookie)
-	void *v;
-	void *cookie;
-{
-	struct cgthree_softc *sc = v;
-
-	sc->sc_nscreens--;
-}
-
-int
-cgthree_show_screen(v, cookie, waitok, cb, cbarg)
-	void *v;
-	void *cookie;
-	int waitok;
-	void (*cb)(void *, int, int);
-	void *cbarg;
-{
-	return (0);
-}
-
-/*
- * Return the address that would map the given device at the given
- * offset, allowing for the given protection, or return -1 for error.
- */
 paddr_t
-cgthree_mmap(v, offset, prot)
-	void *v;
-	off_t offset;
-	int prot;
+cgthree_mmap(void *v, off_t offset, int prot)
 {
 	struct cgthree_softc *sc = v;
 
@@ -448,10 +377,7 @@ cgthree_mmap(v, offset, prot)
 }
 
 void
-cgthree_setcolor(v, index, r, g, b)
-	void *v;
-	u_int index;
-	u_int8_t r, g, b;
+cgthree_setcolor(void *v, u_int index, u_int8_t r, u_int8_t g, u_int8_t b)
 {
 	struct cgthree_softc *sc = v;
 
@@ -466,9 +392,7 @@ cgthree_loadcmap_deferred(struct cgthree_softc *sc, u_int start, u_int ncolors)
 }
 
 void
-cgthree_burner(v, on, flags)
-	void *v;
-	u_int on, flags;
+cgthree_burner(void *v, u_int on, u_int flags)
 {
 	struct cgthree_softc *sc = v;
 	int s;
@@ -485,8 +409,7 @@ cgthree_burner(v, on, flags)
 }
 
 int
-cgthree_intr(v)
-	void *v;
+cgthree_intr(void *v)
 {
 	struct cgthree_softc *sc = v;
 
diff --git a/sys/arch/sparc/dev/cgtwelve.c b/sys/arch/sparc/dev/cgtwelve.c
index 5f4a7b70033..c641d3cc80b 100644
--- a/sys/arch/sparc/dev/cgtwelve.c
+++ b/sys/arch/sparc/dev/cgtwelve.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: cgtwelve.c,v 1.13 2005/03/13 23:05:22 miod Exp $	*/
+/*	$OpenBSD: cgtwelve.c,v 1.14 2005/03/23 17:16:34 miod Exp $	*/
 
 /*
  * Copyright (c) 2002, 2003 Miodrag Vallat.  All rights reserved.
@@ -65,7 +65,6 @@
 
 #include <dev/wscons/wsconsio.h>
 #include <dev/wscons/wsdisplayvar.h>
-#include <dev/wscons/wscons_raster.h>
 #include <dev/rasops/rasops.h>
 #include <machine/fbvar.h>
 
@@ -87,36 +86,30 @@ struct cgtwelve_softc {
 	volatile u_long *sc_inten;	/* true color plane */
 
 	int	sc_highres;
-	int	sc_nscreens;
 };
 
-int cgtwelve_ioctl(void *, u_long, caddr_t, int, struct proc *);
-int cgtwelve_alloc_screen(void *, const struct wsscreen_descr *, void **,
-    int *, int *, long *);
-void cgtwelve_free_screen(void *, void *);
-int cgtwelve_show_screen(void *, void *, int, void (*cb)(void *, int, int),
-    void *);
-paddr_t cgtwelve_mmap(void *, off_t, int);
-void cgtwelve_reset(struct cgtwelve_softc *, int);
-void cgtwelve_prom(void *);
-
-static __inline__ void cgtwelve_ramdac_wraddr(struct cgtwelve_softc *sc,
-    u_int32_t addr);
+int	cgtwelve_ioctl(void *, u_long, caddr_t, int, struct proc *);
+paddr_t	cgtwelve_mmap(void *, off_t, int);
+void	cgtwelve_prom(void *);
+static __inline__
+void	cgtwelve_ramdac_wraddr(struct cgtwelve_softc *, u_int32_t);
+void	cgtwelve_reset(struct cgtwelve_softc *, int);
 
 struct wsdisplay_accessops cgtwelve_accessops = {
 	cgtwelve_ioctl,
 	cgtwelve_mmap,
-	cgtwelve_alloc_screen,
-	cgtwelve_free_screen,
-	cgtwelve_show_screen,
+	NULL,	/* alloc_screen */
+	NULL,	/* free_screen */
+	NULL,	/* show_screen */
 	NULL,	/* load_font */
 	NULL,	/* scrollback */
 	NULL,	/* getchar */
 	NULL,	/* burner */
+	NULL	/* pollc */
 };
 
-int cgtwelvematch(struct device *, void *, void *);
-void cgtwelveattach(struct device *, struct device *, void *);
+int	cgtwelvematch(struct device *, void *, void *);
+void	cgtwelveattach(struct device *, struct device *, void *);
 
 struct cfattach cgtwelve_ca = {
 	sizeof(struct cgtwelve_softc), cgtwelvematch, cgtwelveattach
@@ -127,13 +120,8 @@ struct cfdriver cgtwelve_cd = {
 };
 
 
-/*
- * Match a cgtwelve.
- */
 int
-cgtwelvematch(parent, vcf, aux)
-	struct device *parent;
-	void *vcf, *aux;
+cgtwelvematch(struct device *parent, void *vcf, void *aux)
 {
 	struct cfdata *cf = vcf;
 	struct confargs *ca = aux;
@@ -145,13 +133,8 @@ cgtwelvematch(parent, vcf, aux)
 	return (1);
 }
 
-/*
- * Attach a display.
- */
 void
-cgtwelveattach(parent, self, args)
-	struct device *parent, *self;
-	void *args;
+cgtwelveattach(struct device *parent, struct device *self, void *args)
 {
 	struct cgtwelve_softc *sc = (struct cgtwelve_softc *)self;
 	struct confargs *ca = args;
@@ -232,12 +215,7 @@ cgtwelveattach(parent, self, args)
 }
 
 int
-cgtwelve_ioctl(dev, cmd, data, flags, p)
-	void *dev;
-	u_long cmd;
-	caddr_t data;
-	int flags;
-	struct proc *p;
+cgtwelve_ioctl(void *dev, u_long cmd, caddr_t data, int flags, struct proc *p)
 {
 	struct cgtwelve_softc *sc = dev;
 	struct wsdisplay_fbinfo *wdf;
@@ -287,13 +265,8 @@ cgtwelve_ioctl(dev, cmd, data, flags, p)
 	return (0);
 }
 
-/*
- * Clean up hardware state (e.g., after bootup or after X crashes).
- */
 void
-cgtwelve_reset(sc, depth)
-	struct cgtwelve_softc *sc;
-	int depth;
+cgtwelve_reset(struct cgtwelve_softc *sc, int depth)
 {
 	u_int32_t c;
 
@@ -391,15 +364,8 @@ cgtwelve_reset(sc, depth)
 	sc->sc_sunfb.sf_depth = depth;
 }
 
-/*
- * Return the address that would map the given device at the given
- * offset, allowing for the given protection, or return -1 for error.
- */
 paddr_t
-cgtwelve_mmap(v, offset, prot)
-	void *v;
-	off_t offset;
-	int prot;
+cgtwelve_mmap(void *v, off_t offset, int prot)
 {
 	struct cgtwelve_softc *sc = v;
 
@@ -416,50 +382,7 @@ cgtwelve_mmap(v, offset, prot)
 		    CG12_OFF_INTEN) + offset) | PMAP_NC);
 	}
 
-	return (-1);	/* not a user-map offset */
-}
-
-int
-cgtwelve_alloc_screen(v, type, cookiep, curxp, curyp, attrp)
-	void *v;
-	const struct wsscreen_descr *type;
-	void **cookiep;
-	int *curxp, *curyp;
-	long *attrp;
-{
-	struct cgtwelve_softc *sc = v;
-
-	if (sc->sc_nscreens > 0)
-		return (ENOMEM);
-
-	*cookiep = &sc->sc_sunfb.sf_ro;
-	*curyp = 0;
-	*curxp = 0;
-	sc->sc_sunfb.sf_ro.ri_ops.alloc_attr(&sc->sc_sunfb.sf_ro,
-	     0, 0, 0, attrp);
-	sc->sc_nscreens++;
-	return (0);
-}
-
-void
-cgtwelve_free_screen(v, cookie)
-	void *v;
-	void *cookie;
-{
-	struct cgtwelve_softc *sc = v;
-
-	sc->sc_nscreens--;
-}
-
-int
-cgtwelve_show_screen(v, cookie, waitok, cb, cbarg)
-	void *v;
-	void *cookie;
-	int waitok;
-	void (*cb)(void *, int, int);
-	void *cbarg;
-{
-	return (0);
+	return (-1);
 }
 
 /*
diff --git a/sys/arch/sparc/dev/cgtwo.c b/sys/arch/sparc/dev/cgtwo.c
index d6da8228a8e..156d77dd3b8 100644
--- a/sys/arch/sparc/dev/cgtwo.c
+++ b/sys/arch/sparc/dev/cgtwo.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: cgtwo.c,v 1.32 2005/03/07 16:44:50 miod Exp $	*/
+/*	$OpenBSD: cgtwo.c,v 1.33 2005/03/23 17:16:34 miod Exp $	*/
 /*	$NetBSD: cgtwo.c,v 1.22 1997/05/24 20:16:12 pk Exp $ */
 
 /*
@@ -96,7 +96,6 @@
 
 #include <dev/wscons/wsconsio.h>
 #include <dev/wscons/wsdisplayvar.h>
-#include <dev/wscons/wscons_raster.h>
 #include <dev/rasops/rasops.h>
 #include <machine/fbvar.h>
 
@@ -110,34 +109,30 @@ struct cgtwo_softc {
 #define sc_redmap(cmap)		((u_short *)(cmap))
 #define sc_greenmap(cmap)	((u_short *)(cmap) + CG2_CMSIZE)
 #define sc_bluemap(cmap)	((u_short *)(cmap) + 2 * CG2_CMSIZE)
-	int	sc_nscreens;
 };
 
-int cgtwo_ioctl(void *, u_long, caddr_t, int, struct proc *);
-int cgtwo_alloc_screen(void *, const struct wsscreen_descr *, void **,
-    int *, int *, long *);
-void cgtwo_free_screen(void *, void *);
-int cgtwo_show_screen(void *, void *, int, void (*)(void *, int, int), void *);
-paddr_t cgtwo_mmap(void *, off_t, int);
-int cgtwo_putcmap(volatile u_short *, struct wsdisplay_cmap *);
-int cgtwo_getcmap(volatile u_short *, struct wsdisplay_cmap *);
-void cgtwo_setcolor(void *, u_int, u_int8_t, u_int8_t, u_int8_t);
-void cgtwo_burner(void *, u_int, u_int);
+void	cgtwo_burner(void *, u_int, u_int);
+int	cgtwo_getcmap(volatile u_short *, struct wsdisplay_cmap *);
+int	cgtwo_ioctl(void *, u_long, caddr_t, int, struct proc *);
+paddr_t	cgtwo_mmap(void *, off_t, int);
+int	cgtwo_putcmap(volatile u_short *, struct wsdisplay_cmap *);
+void	cgtwo_setcolor(void *, u_int, u_int8_t, u_int8_t, u_int8_t);
 
 struct wsdisplay_accessops cgtwo_accessops = {
 	cgtwo_ioctl,
 	cgtwo_mmap,
-	cgtwo_alloc_screen,
-	cgtwo_free_screen,
-	cgtwo_show_screen,
+	NULL,	/* alloc_screen */
+	NULL,	/* free_screen */
+	NULL,	/* show_screen */
 	NULL,	/* load_font */
 	NULL,	/* scrollback */
 	NULL,	/* getchar */
 	cgtwo_burner,
+	NULL	/* pollc */
 };
 
-int cgtwomatch(struct device *, void *, void *);
-void cgtwoattach(struct device *, struct device *, void *);
+int	cgtwomatch(struct device *, void *, void *);
+void	cgtwoattach(struct device *, struct device *, void *);
 
 struct cfattach cgtwo_ca = {
 	sizeof(struct cgtwo_softc), cgtwomatch, cgtwoattach
@@ -147,13 +142,8 @@ struct cfdriver cgtwo_cd = {
 	NULL, "cgtwo", DV_DULL
 };
 
-/*
- * Match a cgtwo.
- */
 int
-cgtwomatch(parent, vcf, aux)
-	struct device *parent;
-	void *vcf, *aux;
+cgtwomatch(struct device *parent, void *vcf, void *aux)
 {
 	struct cfdata *cf = vcf;
 	struct confargs *ca = aux;
@@ -175,13 +165,8 @@ cgtwomatch(parent, vcf, aux)
 	return (0);
 }
 
-/*
- * Attach a display.
- */
 void
-cgtwoattach(parent, self, args)
-	struct device *parent, *self;
-	void *args;
+cgtwoattach(struct device *parent, struct device *self, void *args)
 {
 	struct cgtwo_softc *sc = (struct cgtwo_softc *)self;
 	struct confargs *ca = args;
@@ -251,12 +236,7 @@ cgtwoattach(parent, self, args)
 }
 
 int
-cgtwo_ioctl(v, cmd, data, flags, p)
-	void *v;
-	u_long cmd;
-	caddr_t data;
-	int flags;
-	struct proc *p;
+cgtwo_ioctl(void *v, u_long cmd, caddr_t data, int flags, struct proc *p)
 {
 	struct cgtwo_softc *sc = v;
 	struct wsdisplay_fbinfo *wdf;
@@ -308,54 +288,8 @@ cgtwo_ioctl(v, cmd, data, flags, p)
 	return (0);
 }
 
-int
-cgtwo_alloc_screen(v, type, cookiep, curxp, curyp, attrp)
-	void *v;
-	const struct wsscreen_descr *type;
-	void **cookiep;
-	int *curxp, *curyp;
-	long *attrp;
-{
-	struct cgtwo_softc *sc = v;
-
-	if (sc->sc_nscreens > 0)
-		return (ENOMEM);
-
-	*cookiep = &sc->sc_sunfb.sf_ro;
-	*curyp = 0;
-	*curxp = 0;
-	sc->sc_sunfb.sf_ro.ri_ops.alloc_attr(&sc->sc_sunfb.sf_ro,
-	    WSCOL_BLACK, WSCOL_WHITE, WSATTR_WSCOLORS, attrp);
-	sc->sc_nscreens++;
-	return (0);
-}
-
-void
-cgtwo_free_screen(v, cookie)
-	void *v;
-	void *cookie;
-{
-	struct cgtwo_softc *sc = v;
-
-	sc->sc_nscreens--;
-}
-
-int
-cgtwo_show_screen(v, cookie, waitok, cb, cbarg)
-	void *v;
-	void *cookie;
-	int waitok;
-	void (*cb)(void *, int, int);
-	void *cbarg;
-{
-	return (0);
-}
-
 paddr_t
-cgtwo_mmap(v, offset, prot)
-	void *v;
-	off_t offset;
-	int prot;
+cgtwo_mmap(void *v, off_t offset, int prot)
 {
 	struct cgtwo_softc *sc = v;
 
@@ -371,9 +305,7 @@ cgtwo_mmap(v, offset, prot)
 }
 
 void
-cgtwo_burner(v, on, flags)
-	void *v;
-	u_int on, flags;
+cgtwo_burner(void *v, u_int on, u_int flags)
 {
 	struct cgtwo_softc *sc = v;
 	int s;
@@ -387,9 +319,7 @@ cgtwo_burner(v, on, flags)
 }
 
 int
-cgtwo_getcmap(hwcmap, cmap)
-	volatile u_short *hwcmap;
-	struct wsdisplay_cmap *cmap;
+cgtwo_getcmap(volatile u_short *hwcmap, struct wsdisplay_cmap *cmap)
 {
 	u_int index = cmap->index, count = cmap->count, i;
 	u_char red[CG2_CMSIZE], green[CG2_CMSIZE], blue[CG2_CMSIZE];
@@ -425,9 +355,7 @@ cgtwo_getcmap(hwcmap, cmap)
 }
 
 int
-cgtwo_putcmap(hwcmap, cmap)
-	volatile u_short *hwcmap;
-	struct wsdisplay_cmap *cmap;
+cgtwo_putcmap(volatile u_short *hwcmap, struct wsdisplay_cmap *cmap)
 {
 	u_int index = cmap->index, count = cmap->count, i;
 	u_char red[CG2_CMSIZE], green[CG2_CMSIZE], blue[CG2_CMSIZE];
@@ -462,28 +390,12 @@ cgtwo_putcmap(hwcmap, cmap)
 }
 
 void
-cgtwo_setcolor(v, index, r, g, b)
-	void *v;
-	u_int index;
-	u_int8_t r, g, b;
+cgtwo_setcolor(void *v, u_int index, u_int8_t r, u_int8_t g, u_int8_t b)
 {
 	struct cgtwo_softc *sc = v;
-#if 0
-	struct wsdisplay_cmap cm;
-
-	cm.red = &r;
-	cm.green = &g;
-	cm.blue = &b;
-	cm.index = index;
-	cm.count = 1;
-
-	cgtwo_putcmap(sc->sc_cmap, &cm);
-#else
 
 	/* XXX - Wait for retrace? */
-
 	sc_redmap(sc->sc_cmap)[index] = r;
 	sc_greenmap(sc->sc_cmap)[index] = g;
 	sc_bluemap(sc->sc_cmap)[index] = b;
-#endif
 }
diff --git a/sys/arch/sparc/dev/fb.c b/sys/arch/sparc/dev/fb.c
index c323338b8a2..d3fef4d283a 100644
--- a/sys/arch/sparc/dev/fb.c
+++ b/sys/arch/sparc/dev/fb.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: fb.c,v 1.33 2005/03/15 18:40:12 miod Exp $	*/
+/*	$OpenBSD: fb.c,v 1.34 2005/03/23 17:16:34 miod Exp $	*/
 /*	$NetBSD: fb.c,v 1.23 1997/07/07 23:30:22 pk Exp $ */
 
 /*
@@ -111,6 +111,11 @@ static int a2int(char *, int);
 #endif
 static void fb_initwsd(struct sunfb *);
 static void fb_updatecursor(struct rasops_info *);
+int	fb_alloc_screen(void *, const struct wsscreen_descr *, void **,
+	    int *, int *, long *);
+void	fb_free_screen(void *, void *);
+int	fb_show_screen(void *, void *, int, void (*)(void *, int, int),
+	    void *);
 
 void
 fb_setsize(struct sunfb *sf, int def_depth, int def_width, int def_height,
@@ -470,6 +475,13 @@ fbwscons_attach(struct sunfb *sf, struct wsdisplay_accessops *op, int isconsole)
 		fb_cookie = sf;
 	}
 
+	/* plug common wsdisplay_accessops if necessary */
+	if (op->alloc_screen == NULL) {
+		op->alloc_screen = fb_alloc_screen;
+		op->free_screen = fb_free_screen;
+		op->show_screen = fb_show_screen;
+	}
+
 	scrlist[0] = &sf->sf_wsd;
 	screenlist.nscreens = 1;
 	screenlist.screens = (const struct wsscreen_descr **)scrlist;
@@ -481,18 +493,57 @@ fbwscons_attach(struct sunfb *sf, struct wsdisplay_accessops *op, int isconsole)
 	config_found(&sf->sf_dev, &waa, wsemuldisplaydevprint);
 }
 
+/*
+ * Common wsdisplay_accessops routines.
+ */
+int
+fb_alloc_screen(void *v, const struct wsscreen_descr *type,
+    void **cookiep, int *curxp, int *curyp, long *attrp)
+{
+	struct sunfb *sf = v;
+
+	if (sf->sf_nscreens > 0)
+		return (ENOMEM);
+
+	*cookiep = &sf->sf_ro;
+	*curyp = 0;
+	*curxp = 0;
+	if (sf->sf_depth == 8) {
+		sf->sf_ro.ri_ops.alloc_attr(&sf->sf_ro,
+		    WSCOL_BLACK, WSCOL_WHITE, WSATTR_WSCOLORS, attrp);
+	} else {
+		sf->sf_ro.ri_ops.alloc_attr(&sf->sf_ro,
+		    0, 0, 0, attrp);
+	}
+	sf->sf_nscreens++;
+	return (0);
+}
+
+void
+fb_free_screen(void *v, void *cookie)
+{
+	struct sunfb *sf = v;
+
+	sf->sf_nscreens--;
+}
+
+int
+fb_show_screen(void *v, void *cookie, int waitok, void (*cb)(void *, int, int),
+    void *cbarg)
+{
+	return (0);
+}
+
 #if defined(SUN4)
+
 /*
- * Support routines for pfour framebuffers.
+ * Support routines for P4 framebuffers.
  */
 
 /*
- * Probe for a pfour framebuffer.  Return values:
- *
- *	PFOUR_NOTPFOUR		framebuffer is not a pfour
- *				framebuffer
- *
- *	otherwise returns pfour ID
+ * Probe for a P4 framebuffer.  Return values:
+ *	PFOUR_NOTPFOUR		framebuffer is not a P4 framebuffer
+ *	otherwise returns P4 ID
  */
 int
 fb_pfour_id(void *va)
@@ -517,23 +568,13 @@ fb_pfour_id(void *va)
 	return (PFOUR_ID(val));
 }
 
-
-/*
- * Return the status of the video enable.
- */
-int
-fb_pfour_get_video(struct sunfb *sf)
-{
-
-	return ((*sf->sf_pfour & PFOUR_REG_VIDEO) != 0);
-}
-
 /*
- * Enable or disable the framebuffer.
+ * Screen burner routine for P4
  */
 void
-fb_pfour_set_video(struct sunfb *sf, int enable)
+fb_pfour_burner(void *v, u_int enable, u_int flags)
 {
+	struct sunfb *sf = (struct sunfb *)v;
 	volatile u_int32_t pfour;
 
 	pfour = *sf->sf_pfour & ~(PFOUR_REG_INTCLR | PFOUR_REG_VIDEO);
diff --git a/sys/arch/sparc/dev/mgx.c b/sys/arch/sparc/dev/mgx.c
index 94b3c8fa4b0..0ef96cbbb68 100644
--- a/sys/arch/sparc/dev/mgx.c
+++ b/sys/arch/sparc/dev/mgx.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: mgx.c,v 1.9 2005/03/13 23:05:22 miod Exp $	*/
+/*	$OpenBSD: mgx.c,v 1.10 2005/03/23 17:16:34 miod Exp $	*/
 /*
  * Copyright (c) 2003, Miodrag Vallat.
  * All rights reserved.
@@ -54,7 +54,6 @@
 
 #include <dev/wscons/wsconsio.h>
 #include <dev/wscons/wsdisplayvar.h>
-#include <dev/wscons/wscons_raster.h>
 #include <dev/rasops/rasops.h>
 #include <machine/fbvar.h>
 
@@ -85,37 +84,31 @@ struct mgx_softc {
 	struct	rom_reg sc_phys;
 	u_int8_t	sc_cmap[256 * 3];	/* shadow colormap */
 	volatile u_int8_t *sc_vidc;	/* ramdac registers */
-
-	int	sc_nscreens;
 };
 
-int mgx_ioctl(void *, u_long, caddr_t, int, struct proc *);
-int mgx_alloc_screen(void *, const struct wsscreen_descr *, void **,
-    int *, int *, long *);
-void mgx_free_screen(void *, void *);
-int mgx_show_screen(void *, void *, int, void (*cb)(void *, int, int),
-    void *);
-paddr_t mgx_mmap(void *, off_t, int);
-void mgx_setcolor(void *, u_int, u_int8_t, u_int8_t, u_int8_t);
-int mgx_getcmap(u_int8_t *, struct wsdisplay_cmap *);
-int mgx_putcmap(u_int8_t *, struct wsdisplay_cmap *);
-void mgx_loadcmap(struct mgx_softc *, int, int);
-void mgx_burner(void *, u_int ,u_int);
+void	mgx_burner(void *, u_int ,u_int);
+int	mgx_getcmap(u_int8_t *, struct wsdisplay_cmap *);
+int	mgx_ioctl(void *, u_long, caddr_t, int, struct proc *);
+void	mgx_loadcmap(struct mgx_softc *, int, int);
+paddr_t	mgx_mmap(void *, off_t, int);
+int	mgx_putcmap(u_int8_t *, struct wsdisplay_cmap *);
+void	mgx_setcolor(void *, u_int, u_int8_t, u_int8_t, u_int8_t);
 
 struct wsdisplay_accessops mgx_accessops = {
 	mgx_ioctl,
 	mgx_mmap,
-	mgx_alloc_screen,
-	mgx_free_screen,
-	mgx_show_screen,
+	NULL,	/* alloc_screen */
+	NULL,	/* free_screen */
+	NULL,	/* show_screen */
 	NULL,	/* load_font */
 	NULL,	/* scrollback */
 	NULL,	/* getchar */
-	mgx_burner
+	mgx_burner,
+	NULL	/* pollc */
 };
 
-int mgxmatch(struct device *, void *, void *);
-void mgxattach(struct device *, struct device *, void *);
+int	mgxmatch(struct device *, void *, void *);
+void	mgxattach(struct device *, struct device *, void *);
 
 struct cfattach mgx_ca = {
 	sizeof(struct mgx_softc), mgxmatch, mgxattach
@@ -275,39 +268,6 @@ mgx_mmap(void *v, off_t offset, int prot)
 	return (-1);
 }
 
-int
-mgx_alloc_screen(void *v, const struct wsscreen_descr *type,
-    void **cookiep, int *curxp, int *curyp, long *attrp)
-{
-	struct mgx_softc *sc = v;
-
-	if (sc->sc_nscreens > 0)
-		return (ENOMEM);
-
-	*cookiep = &sc->sc_sunfb.sf_ro;
-	*curyp = 0;
-	*curxp = 0;
-	sc->sc_sunfb.sf_ro.ri_ops.alloc_attr(&sc->sc_sunfb.sf_ro,
-	     0, 0, 0, attrp);
-	sc->sc_nscreens++;
-	return (0);
-}
-
-void
-mgx_free_screen(void *v, void *cookie)
-{
-	struct mgx_softc *sc = v;
-
-	sc->sc_nscreens--;
-}
-
-int
-mgx_show_screen(void *v, void *cookie, int waitok,
-    void (*cb)(void *, int, int), void *cbarg)
-{
-	return (0);
-}
-
 void
 mgx_burner(void *v, u_int on, u_int flags)
 {
diff --git a/sys/arch/sparc/dev/p9000.c b/sys/arch/sparc/dev/p9000.c
index 93fe1a9bee7..550471fc7a1 100644
--- a/sys/arch/sparc/dev/p9000.c
+++ b/sys/arch/sparc/dev/p9000.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: p9000.c,v 1.13 2005/03/23 17:15:44 miod Exp $	*/
+/*	$OpenBSD: p9000.c,v 1.14 2005/03/23 17:16:34 miod Exp $	*/
 
 /*
  * Copyright (c) 2003, Miodrag Vallat.
@@ -49,7 +49,6 @@
 
 #include <dev/wscons/wsconsio.h>
 #include <dev/wscons/wsdisplayvar.h>
-#include <dev/wscons/wscons_raster.h>
 #include <dev/rasops/rasops.h>
 #include <machine/fbvar.h>
 
@@ -76,20 +75,14 @@ struct p9000_softc {
 	union	bt_cmap sc_cmap;	/* Brooktree color map */
 	volatile u_int8_t *sc_ramdac;	/* BT445 registers */
 	struct	intrhand sc_ih;
-	int	sc_nscreens;
 	u_int32_t	sc_junk;	/* throwaway value */
 };
 
 int	p9000_ioctl(void *, u_long, caddr_t, int, struct proc *);
-int	p9000_alloc_screen(void *, const struct wsscreen_descr *, void **,
-	    int *, int *, long *);
-void	p9000_free_screen(void *, void *);
-int	p9000_show_screen(void *, void *, int, void (*cb)(void *, int, int),
-	    void *);
-paddr_t	p9000_mmap(void *, off_t, int);
-static __inline__ void p9000_loadcmap_deferred(struct p9000_softc *,
-    u_int, u_int);
+static __inline__
+void	p9000_loadcmap_deferred(struct p9000_softc *, u_int, u_int);
 void	p9000_loadcmap_immediate(struct p9000_softc *, u_int, u_int);
+paddr_t	p9000_mmap(void *, off_t, int);
 void	p9000_setcolor(void *, u_int, u_int8_t, u_int8_t, u_int8_t);
 void	p9000_burner(void *, u_int, u_int);
 int	p9000_intr(void *);
@@ -97,21 +90,22 @@ int	p9000_intr(void *);
 struct wsdisplay_accessops p9000_accessops = {
 	p9000_ioctl,
 	p9000_mmap,
-	p9000_alloc_screen,
-	p9000_free_screen,
-	p9000_show_screen,
+	NULL,	/* alloc_screen */
+	NULL,	/* free_screen */
+	NULL,	/* show_screen */
 	NULL,	/* load_font */
 	NULL,	/* scrollback */
 	NULL,	/* getchar */
 	p9000_burner,
+	NULL	/* pollc */
 };
 
-void	p9000_ras_init(struct p9000_softc *);
 void	p9000_ras_copycols(void *, int, int, int, int);
 void	p9000_ras_copyrows(void *, int, int, int);
 void	p9000_ras_do_cursor(struct rasops_info *);
 void	p9000_ras_erasecols(void *, int, int, int, long int);
 void	p9000_ras_eraserows(void *, int, int, long int);
+void	p9000_ras_init(struct p9000_softc *);
 
 int	p9000match(struct device *, void *, void *);
 void	p9000attach(struct device *, struct device *, void *);
@@ -390,43 +384,6 @@ p9000_ioctl(void *v, u_long cmd, caddr_t data, int flags, struct proc *p)
 	return (0);
 }
 
-int
-p9000_alloc_screen(void *v, const struct wsscreen_descr *type, void **cookiep,
-    int *curxp, int *curyp, long *attrp)
-{
-	struct p9000_softc *sc = v;
-
-	if (sc->sc_nscreens > 0)
-		return (ENOMEM);
-
-	*cookiep = &sc->sc_sunfb.sf_ro;
-	*curyp = 0;
-	*curxp = 0;
-	sc->sc_sunfb.sf_ro.ri_ops.alloc_attr(&sc->sc_sunfb.sf_ro,
-	    WSCOL_BLACK, WSCOL_WHITE, WSATTR_WSCOLORS, attrp);
-	sc->sc_nscreens++;
-	return (0);
-}
-
-void
-p9000_free_screen(void *v, void *cookie)
-{
-	struct p9000_softc *sc = v;
-
-	sc->sc_nscreens--;
-}
-
-int
-p9000_show_screen(void *v, void *cookie, int waitok,
-    void (*cb)(void *, int, int), void *cbarg)
-{
-	return (0);
-}
-
-/*
- * Return the address that would map the given device at the given
- * offset, allowing for the given protection, or return -1 for error.
- */
 paddr_t
 p9000_mmap(void *v, off_t offset, int prot)
 {
diff --git a/sys/arch/sparc/dev/p9100.c b/sys/arch/sparc/dev/p9100.c
index 0f487f9fa6a..b8f5aca9970 100644
--- a/sys/arch/sparc/dev/p9100.c
+++ b/sys/arch/sparc/dev/p9100.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: p9100.c,v 1.34 2005/03/23 17:15:44 miod Exp $	*/
+/*	$OpenBSD: p9100.c,v 1.35 2005/03/23 17:16:34 miod Exp $	*/
 
 /*
  * Copyright (c) 2003, Miodrag Vallat.
@@ -52,7 +52,6 @@
 
 #include <dev/wscons/wsconsio.h>
 #include <dev/wscons/wsdisplayvar.h>
-#include <dev/wscons/wscons_raster.h>
 #include <dev/rasops/rasops.h>
 #include <machine/fbvar.h>
 
@@ -76,42 +75,37 @@ struct p9100_softc {
 	volatile u_int8_t *sc_ctl;	/* control registers (draw engine) */
 	union	bt_cmap sc_cmap;	/* Brooktree color map */
 	struct	intrhand sc_ih;
-	int	sc_nscreens;
 	u_int32_t	sc_junk;	/* throwaway value */
 };
 
+void	p9100_burner(void *, u_int, u_int);
+int	p9100_intr(void *);
 int	p9100_ioctl(void *, u_long, caddr_t, int, struct proc *);
-int	p9100_alloc_screen(void *, const struct wsscreen_descr *, void **,
-	    int *, int *, long *);
-void	p9100_free_screen(void *, void *);
-int	p9100_show_screen(void *, void *, int, void (*cb)(void *, int, int),
-	    void *);
-paddr_t	p9100_mmap(void *, off_t, int);
-static __inline__ void p9100_loadcmap_deferred(struct p9100_softc *,
-    u_int, u_int);
+static __inline__
+void	p9100_loadcmap_deferred(struct p9100_softc *, u_int, u_int);
 void	p9100_loadcmap_immediate(struct p9100_softc *, u_int, u_int);
+paddr_t	p9100_mmap(void *, off_t, int);
 void	p9100_setcolor(void *, u_int, u_int8_t, u_int8_t, u_int8_t);
-void	p9100_burner(void *, u_int, u_int);
-int	p9100_intr(void *);
 
 struct wsdisplay_accessops p9100_accessops = {
 	p9100_ioctl,
 	p9100_mmap,
-	p9100_alloc_screen,
-	p9100_free_screen,
-	p9100_show_screen,
+	NULL,	/* alloc_screen */
+	NULL,	/* free_screen */
+	NULL,	/* show_screen */
 	NULL,	/* load_font */
 	NULL,	/* scrollback */
 	NULL,	/* getchar */
 	p9100_burner,
+	NULL	/* pollc */
 };
 
-void	p9100_ras_init(struct p9100_softc *);
 void	p9100_ras_copycols(void *, int, int, int, int);
 void	p9100_ras_copyrows(void *, int, int, int);
 void	p9100_ras_do_cursor(struct rasops_info *);
 void	p9100_ras_erasecols(void *, int, int, int, long int);
 void	p9100_ras_eraserows(void *, int, int, long int);
+void	p9100_ras_init(struct p9100_softc *);
 
 int	p9100match(struct device *, void *, void *);
 void	p9100attach(struct device *, struct device *, void *);
@@ -434,48 +428,6 @@ p9100_ioctl(void *v, u_long cmd, caddr_t data, int flags, struct proc *p)
 	return (0);
 }
 
-int
-p9100_alloc_screen(void *v, const struct wsscreen_descr *type, void **cookiep,
-    int *curxp, int *curyp, long *attrp)
-{
-	struct p9100_softc *sc = v;
-
-	if (sc->sc_nscreens > 0)
-		return (ENOMEM);
-
-	*cookiep = &sc->sc_sunfb.sf_ro;
-	*curyp = 0;
-	*curxp = 0;
-	if (sc->sc_sunfb.sf_depth == 8) {
-		sc->sc_sunfb.sf_ro.ri_ops.alloc_attr(&sc->sc_sunfb.sf_ro,
-		    WSCOL_BLACK, WSCOL_WHITE, WSATTR_WSCOLORS, attrp);
-	} else {
-		sc->sc_sunfb.sf_ro.ri_ops.alloc_attr(&sc->sc_sunfb.sf_ro,
-		    0, 0, 0, attrp);
-	}
-	sc->sc_nscreens++;
-	return (0);
-}
-
-void
-p9100_free_screen(void *v, void *cookie)
-{
-	struct p9100_softc *sc = v;
-
-	sc->sc_nscreens--;
-}
-
-int
-p9100_show_screen(void *v, void *cookie, int waitok,
-    void (*cb)(void *, int, int), void *cbarg)
-{
-	return (0);
-}
-
-/*
- * Return the address that would map the given device at the given
- * offset, allowing for the given protection, or return -1 for error.
- */
 paddr_t
 p9100_mmap(void *v, off_t offset, int prot)
 {
diff --git a/sys/arch/sparc/dev/rfx.c b/sys/arch/sparc/dev/rfx.c
index d79e4c9acd4..41fcaa42351 100644
--- a/sys/arch/sparc/dev/rfx.c
+++ b/sys/arch/sparc/dev/rfx.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: rfx.c,v 1.9 2005/03/13 23:05:22 miod Exp $	*/
+/*	$OpenBSD: rfx.c,v 1.10 2005/03/23 17:16:34 miod Exp $	*/
 
 /*
  * Copyright (c) 2004, Miodrag Vallat.
@@ -51,7 +51,6 @@
 
 #include <dev/wscons/wsconsio.h>
 #include <dev/wscons/wsdisplayvar.h>
-#include <dev/wscons/wscons_raster.h>
 #include <dev/rasops/rasops.h>
 #include <machine/fbvar.h>
 
@@ -114,17 +113,10 @@ struct rfx_softc {
 	struct rfx_cmap		 sc_cmap;
 	volatile u_int8_t	*sc_ramdac;
 	volatile u_int32_t	*sc_ctrl;
-
-	int			 sc_nscreens;
 };
 
-int	rfx_alloc_screen(void *, const struct wsscreen_descr *, void **,
-	    int *, int *, long *);
 void	rfx_burner(void *, u_int, u_int);
-void	rfx_free_screen(void *, void *);
 int	rfx_ioctl(void *, u_long, caddr_t, int, struct proc *);
-int	rfx_show_screen(void *, void *, int, void (*cb)(void *, int, int),
-	    void *);
 paddr_t	rfx_mmap(void *, off_t, int);
 
 int	rfx_getcmap(struct rfx_cmap *, struct wsdisplay_cmap *);
@@ -137,13 +129,14 @@ void	rfx_setcolor(void *, u_int, u_int8_t, u_int8_t, u_int8_t);
 struct wsdisplay_accessops rfx_accessops = {
 	rfx_ioctl,
 	rfx_mmap,
-	rfx_alloc_screen,
-	rfx_free_screen,
-	rfx_show_screen,
+	NULL,	/* alloc_screen */
+	NULL,	/* free_screen */
+	NULL,	/* show_screen */
 	NULL,	/* load_font */
 	NULL,	/* scrollback */
 	NULL,	/* getchar */
 	rfx_burner,
+	NULL	/* pollc */
 };
 
 int	rfxmatch(struct device *, void *, void *);
@@ -368,39 +361,6 @@ rfx_mmap(void *v, off_t offset, int prot)
 	return (-1);
 }
 
-int
-rfx_alloc_screen(void *v, const struct wsscreen_descr *type, void **cookiep,
-    int *curxp, int *curyp, long *attrp)
-{
-	struct rfx_softc *sc = v;
-
-	if (sc->sc_nscreens > 0)
-		return (ENOMEM);
-
-	*cookiep = &sc->sc_sunfb.sf_ro;
-	*curyp = 0;
-	*curxp = 0;
-	sc->sc_sunfb.sf_ro.ri_ops.alloc_attr(&sc->sc_sunfb.sf_ro,
-	    WSCOL_BLACK, WSCOL_WHITE, WSATTR_WSCOLORS, attrp);
-	sc->sc_nscreens++;
-	return (0);
-}
-
-void
-rfx_free_screen(void *v, void *cookie)
-{
-	struct rfx_softc *sc = v;
-
-	sc->sc_nscreens--;
-}
-
-int
-rfx_show_screen(void *v, void *cookie, int waitok,
-    void (*cb)(void *, int, int), void *cbarg)
-{
-	return (0);
-}
-
 void
 rfx_burner(void *v, u_int on, u_int flags)
 {
@@ -547,9 +507,4 @@ rfx_initialize(struct rfx_softc *sc, struct rfx_config *cf)
 
 		cnt--;
 	}
-
-#ifdef DEBUG
-	if (cnt != 0)
-		printf("%s: incoherent initialization data!\n");
-#endif
 }
diff --git a/sys/arch/sparc/dev/tcx.c b/sys/arch/sparc/dev/tcx.c
index b27df78657d..4b1e5c5e4ac 100644
--- a/sys/arch/sparc/dev/tcx.c
+++ b/sys/arch/sparc/dev/tcx.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: tcx.c,v 1.24 2005/03/13 23:05:22 miod Exp $	*/
+/*	$OpenBSD: tcx.c,v 1.25 2005/03/23 17:16:34 miod Exp $	*/
 /*	$NetBSD: tcx.c,v 1.8 1997/07/29 09:58:14 fair Exp $ */
 
 /*
@@ -84,7 +84,6 @@
 
 #include <dev/wscons/wsconsio.h>
 #include <dev/wscons/wsdisplayvar.h>
-#include <dev/wscons/wscons_raster.h>
 #include <dev/rasops/rasops.h>
 #include <machine/fbvar.h>
 
@@ -107,37 +106,33 @@ struct tcx_softc {
 	volatile u_int32_t *sc_cplane;		/* S24 control plane */
 	union	bt_cmap sc_cmap;		/* Brooktree color map */
 	struct	intrhand sc_ih;
-	int	sc_nscreens;
 };
 
-int tcx_ioctl(void *, u_long, caddr_t, int, struct proc *);
-int tcx_alloc_screen(void *, const struct wsscreen_descr *, void **,
-    int *, int *, long *);
-void tcx_free_screen(void *, void *);
-int tcx_show_screen(void *, void *, int, void (*cb)(void *, int, int),
-    void *);
-paddr_t tcx_mmap(void *, off_t, int);
-void tcx_reset(struct tcx_softc *, int);
-void tcx_burner(void *, u_int, u_int);
-void tcx_setcolor(void *, u_int, u_int8_t, u_int8_t, u_int8_t);
-static __inline__ void tcx_loadcmap_deferred(struct tcx_softc *, u_int, u_int);
-int tcx_intr(void *);
-void tcx_prom(void *);
+void	tcx_burner(void *, u_int, u_int);
+int	tcx_intr(void *);
+int	tcx_ioctl(void *, u_long, caddr_t, int, struct proc *);
+static __inline__
+void	tcx_loadcmap_deferred(struct tcx_softc *, u_int, u_int);
+paddr_t	tcx_mmap(void *, off_t, int);
+void	tcx_reset(struct tcx_softc *, int);
+void	tcx_setcolor(void *, u_int, u_int8_t, u_int8_t, u_int8_t);
+void	tcx_prom(void *);
 
 struct wsdisplay_accessops tcx_accessops = {
 	tcx_ioctl,
 	tcx_mmap,
-	tcx_alloc_screen,
-	tcx_free_screen,
-	tcx_show_screen,
+	NULL,	/* alloc_screen */
+	NULL,	/* free_screen */
+	NULL,	/* show_screen */
 	NULL,   /* load_font */
 	NULL,   /* scrollback */
 	NULL,   /* getchar */
 	tcx_burner,
+	NULL	/* pollc */
 };
 
-int tcxmatch(struct device *, void *, void *);
-void tcxattach(struct device *, struct device *, void *);
+int	tcxmatch(struct device *, void *, void *);
+void	tcxattach(struct device *, struct device *, void *);
 
 struct cfattach tcx_ca = {
 	sizeof(struct tcx_softc), tcxmatch, tcxattach
@@ -165,13 +160,8 @@ struct cfdriver tcx_cd = {
 #define	TCX_CTL_24_LEVEL	0x03000000	/* 24 bits, true color */
 #define	TCX_CTL_PIXELMASK	0x00ffffff	/* mask for index/level */
 
-/*
- * Match a tcx.
- */
 int
-tcxmatch(parent, vcf, aux)
-	struct device *parent;
-	void *vcf, *aux;
+tcxmatch(struct device *parent, void *vcf, void *aux)
 {
 	struct confargs *ca = aux;
 	struct romaux *ra = &ca->ca_ra;
@@ -182,13 +172,8 @@ tcxmatch(parent, vcf, aux)
 	return (1);
 }
 
-/*
- * Attach a display.
- */
 void
-tcxattach(parent, self, args)
-	struct device *parent, *self;
-	void *args;
+tcxattach(struct device *parent, struct device *self, void *args)
 {
 	struct tcx_softc *sc = (struct tcx_softc *)self;
 	struct confargs *ca = args;
@@ -277,12 +262,7 @@ tcxattach(parent, self, args)
 }
 
 int
-tcx_ioctl(dev, cmd, data, flags, p)
-	void *dev;
-	u_long cmd;
-	caddr_t data;
-	int flags;
-	struct proc *p;
+tcx_ioctl(void *dev, u_long cmd, caddr_t data, int flags, struct proc *p)
 {
 	struct tcx_softc *sc = dev;
 	struct wsdisplay_cmap *cm;
@@ -355,13 +335,8 @@ tcx_ioctl(dev, cmd, data, flags, p)
 	return (0);
 }
 
-/*
- * Clean up hardware state (e.g., after bootup or after X crashes).
- */
 void
-tcx_reset(sc, depth)
-	struct tcx_softc *sc;
-	int depth;
+tcx_reset(struct tcx_softc *sc, int depth)
 {
 	volatile struct bt_regs *bt;
 
@@ -405,30 +380,27 @@ tcx_reset(sc, depth)
 }
 
 void
-tcx_prom(v)
-	void *v;
+tcx_prom(void *v)
 {
 	struct tcx_softc *sc = v;
 	extern struct consdev consdev_prom;
 
 	if (sc->sc_sunfb.sf_depth != 8) {
 		/*
-	 	* Select 8-bit mode.
-	 	*/
+	 	 * Select 8-bit mode.
+	 	 */
 		tcx_reset(sc, 8);
 
 		/*
-	 	* Go back to prom output for the last few messages, so they
-	 	* will be displayed correctly.
-	 	*/
+	 	 * Go back to prom output for the last few messages, so they
+	 	 * will be displayed correctly.
+	 	 */
 		cn_tab = &consdev_prom;
 	}
 }
 
 void
-tcx_burner(v, on, flags)
-	void *v;
-	u_int on, flags;
+tcx_burner(void *v, u_int on, u_int flags)
 {
 	struct tcx_softc *sc = v;
 	int s;
@@ -448,15 +420,8 @@ tcx_burner(v, on, flags)
 	splx(s);
 }
 
-/*
- * Return the address that would map the given device at the given
- * offset, allowing for the given protection, or return -1 for error.
- */
 paddr_t
-tcx_mmap(v, offset, prot)
-	void *v;
-	off_t offset;
-	int prot;
+tcx_mmap(void *v, off_t offset, int prot)
 {
 	struct tcx_softc *sc = v;
 
@@ -471,63 +436,17 @@ tcx_mmap(v, offset, prot)
 		return (REG2PHYS(&sc->sc_phys[TCX_REG_DFB24], offset) |
 		    PMAP_NC);
 
-	return (-1);	/* not a user-map offset */
+	return (-1);
 }
 
 void
-tcx_setcolor(v, index, r, g, b)
-	void *v;
-	u_int index;
-	u_int8_t r, g, b;
+tcx_setcolor(void *v, u_int index, u_int8_t r, u_int8_t g, u_int8_t b)
 {
 	struct tcx_softc *sc = v;
 
 	bt_setcolor(&sc->sc_cmap, sc->sc_bt, index, r, g, b, 1);
 }
 
-int
-tcx_alloc_screen(v, type, cookiep, curxp, curyp, attrp)
-	void *v;
-	const struct wsscreen_descr *type;
-	void **cookiep;
-	int *curxp, *curyp;
-	long *attrp;
-{
-	struct tcx_softc *sc = v;
-
-	if (sc->sc_nscreens > 0)
-		return (ENOMEM);
-
-	*cookiep = &sc->sc_sunfb.sf_ro;
-	*curyp = 0;
-	*curxp = 0;
-	sc->sc_sunfb.sf_ro.ri_ops.alloc_attr(&sc->sc_sunfb.sf_ro,
-	    WSCOL_BLACK, WSCOL_WHITE, WSATTR_WSCOLORS, attrp);
-	sc->sc_nscreens++;
-	return (0);
-}
-
-void
-tcx_free_screen(v, cookie)
-	void *v;
-	void *cookie;
-{
-	struct tcx_softc *sc = v;
-
-	sc->sc_nscreens--;
-}
-
-int
-tcx_show_screen(v, cookie, waitok, cb, cbarg)
-	void *v;
-	void *cookie;
-	int waitok;
-	void (*cb)(void *, int, int);
-	void *cbarg;
-{
-	return (0);
-}
-
 static __inline__ void
 tcx_loadcmap_deferred(struct tcx_softc *sc, u_int start, u_int ncolors)
 {
@@ -539,8 +458,7 @@ tcx_loadcmap_deferred(struct tcx_softc *sc, u_int start, u_int ncolors)
 }
 
 int
-tcx_intr(v)
-	void *v;
+tcx_intr(void *v)
 {
 	struct tcx_softc *sc = v;
 	u_int32_t thcm;
diff --git a/sys/arch/sparc/dev/tvtwo.c b/sys/arch/sparc/dev/tvtwo.c
index de2b3bd1da5..01060ec0261 100644
--- a/sys/arch/sparc/dev/tvtwo.c
+++ b/sys/arch/sparc/dev/tvtwo.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: tvtwo.c,v 1.7 2005/03/07 21:21:03 miod Exp $	*/
+/*	$OpenBSD: tvtwo.c,v 1.8 2005/03/23 17:16:34 miod Exp $	*/
 /*
  * Copyright (c) 2003, Miodrag Vallat.
  * All rights reserved.
@@ -126,16 +126,9 @@ struct tvtwo_softc {
 	struct	rom_reg sc_phys;
 
 	volatile u_int8_t *sc_regs;
-
-	int	sc_nscreens;
 };
 
 int	tvtwo_ioctl(void *, u_long, caddr_t, int, struct proc *);
-int	tvtwo_alloc_screen(void *, const struct wsscreen_descr *, void **,
-	    int *, int *, long *);
-void	tvtwo_free_screen(void *, void *);
-int	tvtwo_show_screen(void *, void *, int, void (*cb)(void *, int, int),
-	    void *);
 paddr_t	tvtwo_mmap(void *, off_t, int);
 void	tvtwo_burner(void *, u_int, u_int);
 
@@ -146,13 +139,14 @@ void	tvtwo_initcmap(struct tvtwo_softc *);
 struct wsdisplay_accessops tvtwo_accessops = {
 	tvtwo_ioctl,
 	tvtwo_mmap,
-	tvtwo_alloc_screen,
-	tvtwo_free_screen,
-	tvtwo_show_screen,
+	NULL,	/* alloc_screen */
+	NULL,	/* free_screen */
+	NULL,	/* show_screen */
 	NULL,	/* load_font */
 	NULL,	/* scrollback */
 	NULL,	/* getchar */
 	tvtwo_burner,
+	NULL	/* pollc */
 };
 
 int	tvtwomatch(struct device *, void *, void *);
@@ -189,9 +183,6 @@ tvtwomatch(struct device *parent, void *vcf, void *aux)
 	return (0);
 }
 
-/*
- * Attach a display.
- */
 void
 tvtwoattach(struct device *parent, struct device *self, void *args)
 {
@@ -302,10 +293,6 @@ tvtwo_ioctl(void *dev, u_long cmd, caddr_t data, int flags, struct proc *p)
 	return (0);
 }
 
-/*
- * Return the address that would map the given device at the given
- * offset, allowing for the given protection, or return -1 for error.
- */
 paddr_t
 tvtwo_mmap(void *v, off_t offset, int prot)
 {
@@ -323,39 +310,6 @@ tvtwo_mmap(void *v, off_t offset, int prot)
 	return (-1);
 }
 
-int
-tvtwo_alloc_screen(void *v, const struct wsscreen_descr *type,
-    void **cookiep, int *curxp, int *curyp, long *attrp)
-{
-	struct tvtwo_softc *sc = v;
-
-	if (sc->sc_nscreens > 0)
-		return (ENOMEM);
-
-	*cookiep = &sc->sc_sunfb.sf_ro;
-	*curyp = 0;
-	*curxp = 0;
-	sc->sc_sunfb.sf_ro.ri_ops.alloc_attr(&sc->sc_sunfb.sf_ro,
-	     0, 0, 0, attrp);
-	sc->sc_nscreens++;
-	return (0);
-}
-
-void
-tvtwo_free_screen(void *v, void *cookie)
-{
-	struct tvtwo_softc *sc = v;
-
-	sc->sc_nscreens--;
-}
-
-int
-tvtwo_show_screen(void *v, void *cookie, int waitok,
-    void (*cb)(void *, int, int), void *cbarg)
-{
-	return (0);
-}
-
 /*
  * Simple Bt463 programming routines.
  */
diff --git a/sys/arch/sparc/dev/vigra.c b/sys/arch/sparc/dev/vigra.c
index 3df2c6f4644..645a42da79f 100644
--- a/sys/arch/sparc/dev/vigra.c
+++ b/sys/arch/sparc/dev/vigra.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: vigra.c,v 1.14 2005/03/07 16:44:50 miod Exp $	*/
+/*	$OpenBSD: vigra.c,v 1.15 2005/03/23 17:16:34 miod Exp $	*/
 
 /*
  * Copyright (c) 2002, 2003, Miodrag Vallat.
@@ -55,7 +55,6 @@
 
 #include <dev/wscons/wsconsio.h>
 #include <dev/wscons/wsdisplayvar.h>
-#include <dev/wscons/wscons_raster.h>
 #include <dev/rasops/rasops.h>
 #include <machine/fbvar.h>
 
@@ -181,35 +180,30 @@ struct vigra_softc {
 	union	vigracmap sc_cmap;	/* current colormap */
 	int	sc_g300;
 	struct	intrhand sc_ih;
-	int	sc_nscreens;
 };
 
-int vigra_ioctl(void *, u_long, caddr_t, int, struct proc *);
-int vigra_alloc_screen(void *, const struct wsscreen_descr *, void **,
-    int *, int *, long *);
-void vigra_free_screen(void *, void *);
-int vigra_show_screen(void *, void *, int, void (*cb)(void *, int, int),
-    void *);
-paddr_t vigra_mmap(void *, off_t, int);
-void vigra_setcolor(void *, u_int, u_int8_t, u_int8_t, u_int8_t);
-int vigra_getcmap(union vigracmap *, struct wsdisplay_cmap *, int);
-int vigra_putcmap(union vigracmap *, struct wsdisplay_cmap *, int);
-void vigra_loadcmap_immediate(struct vigra_softc *, int, int);
-static __inline__ void vigra_loadcmap_deferred(struct vigra_softc *,
-    u_int, u_int);
-void vigra_burner(void *, u_int, u_int);
-int vigra_intr(void *);
+void	vigra_burner(void *, u_int, u_int);
+int	vigra_getcmap(union vigracmap *, struct wsdisplay_cmap *, int);
+int	vigra_intr(void *);
+int	vigra_ioctl(void *, u_long, caddr_t, int, struct proc *);
+static __inline__
+void	vigra_loadcmap_deferred(struct vigra_softc *, u_int, u_int);
+void	vigra_loadcmap_immediate(struct vigra_softc *, int, int);
+paddr_t	vigra_mmap(void *, off_t, int);
+int	vigra_putcmap(union vigracmap *, struct wsdisplay_cmap *, int);
+void	vigra_setcolor(void *, u_int, u_int8_t, u_int8_t, u_int8_t);
 
 struct wsdisplay_accessops vigra_accessops = {
 	vigra_ioctl,
 	vigra_mmap,
-	vigra_alloc_screen,
-	vigra_free_screen,
-	vigra_show_screen,
+	NULL,	/* alloc_screen */
+	NULL,	/* free_screen */
+	NULL,	/* show_screen */
 	NULL,	/* load_font */
 	NULL,	/* scrollback */
 	NULL,	/* getchar */
 	vigra_burner,
+	NULL	/* pollc */
 };
 
 int	vigramatch(struct device *, void *, void *);
@@ -386,43 +380,6 @@ vigra_ioctl(void *v, u_long cmd, caddr_t data, int flags, struct proc *p)
 	return (0);
 }
 
-int
-vigra_alloc_screen(void *v, const struct wsscreen_descr *type, void **cookiep,
-    int *curxp, int *curyp, long *attrp)
-{
-	struct vigra_softc *sc = v;
-
-	if (sc->sc_nscreens > 0)
-		return (ENOMEM);
-
-	*cookiep = &sc->sc_sunfb.sf_ro;
-	*curyp = 0;
-	*curxp = 0;
-	sc->sc_sunfb.sf_ro.ri_ops.alloc_attr(&sc->sc_sunfb.sf_ro,
-	    WSCOL_BLACK, WSCOL_WHITE, WSATTR_WSCOLORS, attrp);
-	sc->sc_nscreens++;
-	return (0);
-}
-
-void
-vigra_free_screen(void *v, void *cookie)
-{
-	struct vigra_softc *sc = v;
-
-	sc->sc_nscreens--;
-}
-
-int
-vigra_show_screen(void *v, void *cookie, int waitok,
-    void (*cb)(void *, int, int), void *cbarg)
-{
-	return (0);
-}
-
-/*
- * Return the address that would map the given device at the given
- * offset, allowing for the given protection, or return -1 for error.
- */
 paddr_t
 vigra_mmap(void *v, off_t offset, int prot)
 {
diff --git a/sys/arch/sparc/dev/zx.c b/sys/arch/sparc/dev/zx.c
index 81df452e679..9398deaaefe 100644
--- a/sys/arch/sparc/dev/zx.c
+++ b/sys/arch/sparc/dev/zx.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: zx.c,v 1.11 2005/03/13 23:05:22 miod Exp $	*/
+/*	$OpenBSD: zx.c,v 1.12 2005/03/23 17:16:34 miod Exp $	*/
 /*	$NetBSD: zx.c,v 1.5 2002/10/02 16:52:46 thorpej Exp $	*/
 
 /*
@@ -88,7 +88,6 @@
 
 #include <dev/wscons/wsconsio.h>
 #include <dev/wscons/wsdisplayvar.h>
-#include <dev/wscons/wscons_raster.h>
 #include <dev/rasops/rasops.h>
 #include <machine/fbvar.h>
 
@@ -123,29 +122,25 @@ struct zx_softc {
 	volatile struct zx_draw_ss1 *sc_zd_ss1;
 	volatile struct zx_cursor *sc_zcu;
 
-	int	sc_nscreens;
 };
 
-int zx_ioctl(void *, u_long, caddr_t, int, struct proc *);
-int zx_alloc_screen(void *, const struct wsscreen_descr *, void **,
-    int *, int *, long *);
-void zx_free_screen(void *, void *);
-int zx_show_screen(void *, void *, int, void (*)(void *, int, int), void *);
-paddr_t zx_mmap(void *, off_t, int);
-void zx_setcolor(void *, u_int, u_int8_t, u_int8_t, u_int8_t);
-void zx_reset(struct zx_softc *, u_int);
-void zx_burner(void *, u_int, u_int);
+void	zx_burner(void *, u_int, u_int);
+int	zx_ioctl(void *, u_long, caddr_t, int, struct proc *);
+paddr_t	zx_mmap(void *v, off_t offset, int prot);
+void	zx_reset(struct zx_softc *, u_int);
+void	zx_setcolor(void *, u_int, u_int8_t, u_int8_t, u_int8_t);
 
 struct wsdisplay_accessops zx_accessops = {
 	zx_ioctl,
 	zx_mmap,
-	zx_alloc_screen,
-	zx_free_screen,
-	zx_show_screen,
+	NULL,	/* alloc_screen */
+	NULL,	/* free_screen */
+	NULL,	/* show_screen */
 	NULL,	/* load_font */
 	NULL,	/* scrollback */
 	NULL,	/* getchar */
-	zx_burner
+	zx_burner,
+	NULL	/* pollc */
 };
 
 /* Force 32-bit writes. */
@@ -162,20 +157,19 @@ struct wsdisplay_accessops zx_accessops = {
 void	zx_attach(struct device *, struct device *, void *);
 int	zx_match(struct device *, void *, void *);
 
-int	zx_putcmap(struct zx_softc *);
 void	zx_copyrect(struct rasops_info *, int, int, int, int, int, int);
 int	zx_cross_loadwid(struct zx_softc *, u_int, u_int, u_int);
 int	zx_cross_wait(struct zx_softc *);
 void	zx_fillrect(struct rasops_info *, int, int, int, int, long, int);
 int	zx_intr(void *);
-void	zx_prom(void *);
+int	zx_putcmap(struct zx_softc *);
 
-void	zx_putchar(void *, int, int, u_int, long);
 void	zx_copycols(void *, int, int, int, int);
-void	zx_erasecols(void *, int, int, int, long);
 void	zx_copyrows(void *, int, int, int);
-void	zx_eraserows(void *, int, int, long);
 void	zx_do_cursor(struct rasops_info *);
+void	zx_erasecols(void *, int, int, int, long);
+void	zx_eraserows(void *, int, int, long);
+void	zx_putchar(void *, int, int, u_int, long);
 
 struct cfattach zx_ca = {
 	sizeof(struct zx_softc), zx_match, zx_attach
@@ -259,11 +253,11 @@ zx_attach(struct device *parent, struct device *self, void *args)
 
 	/*
 	 * Watch out! rasops_init() invoked via fbwscons_init() would
-	 * not compute ri_bits correctly, if it had been tricked with the
-	 * low depth value. So masquerade as 32 bits for the call. This
-	 * will invoke rasops32_init() instead of rasops8_init(), but this
-	 * doesn't matter as we will override all the rasops functions
-	 * below.
+	 * not compute ri_bits correctly when centering the display, if
+	 * it had been tricked with the low depth value. So masquerade as
+	 * 32 bits for the call. This will invoke rasops32_init() instead
+	 * of rasops8_init(), but this doesn't matter as we will override
+	 * all the rasops functions below.
 	 */
 	sc->sc_sunfb.sf_depth = 32;
 	fbwscons_init(&sc->sc_sunfb, isconsole ? 0 : RI_CLEAR);
@@ -282,6 +276,7 @@ zx_attach(struct device *parent, struct device *self, void *args)
 	}
 
 	/* reset cursor & frame buffer controls */
+	sc->sc_mode = ~WSDISPLAYIO_MODE_EMUL;	/* force action */
 	zx_reset(sc, WSDISPLAYIO_MODE_EMUL);
 
 	/* enable video */
@@ -337,39 +332,6 @@ zx_ioctl(void *dev, u_long cmd, caddr_t data, int flags, struct proc *p)
 	return (0);
 }
 
-int
-zx_alloc_screen(void *v, const struct wsscreen_descr *type, void **cookiep,
-    int *curxp, int *curyp, long *attrp)
-{
-	struct zx_softc *sc = v;
-
-	if (sc->sc_nscreens > 0)
-		return (ENOMEM);
-
-	*cookiep = &sc->sc_sunfb.sf_ro;
-	*curyp = 0;
-	*curxp = 0;
-	sc->sc_sunfb.sf_ro.ri_ops.alloc_attr(&sc->sc_sunfb.sf_ro,
-	    WSCOL_BLACK, WSCOL_WHITE, WSATTR_WSCOLORS, attrp);
-	sc->sc_nscreens++;
-	return (0);
-}
-
-void
-zx_free_screen(void *v, void *cookie)
-{
-	struct zx_softc *sc = v;
-
-	sc->sc_nscreens--;
-}
-
-int
-zx_show_screen(void *v, void *cookie, int waitok, void (*cb)(void *, int, int),
-    void *cbarg)
-{
-	return (0);
-}
-
 /*
  * Return the address that would map the given device at the given
  * offset, allowing for the given protection, or return -1 for error.
@@ -409,6 +371,9 @@ zx_reset(struct zx_softc *sc, u_int mode)
 	const u_char *color;
 	u_int8_t *r, *g, *b;
 
+	if (mode == sc->sc_mode)
+		return;
+
 	zd = sc->sc_zd_ss0;
 	zc = sc->sc_zc;
 
@@ -478,6 +443,8 @@ zx_reset(struct zx_softc *sc, u_int mode)
 		SETREG(zd->zd_rop, ZX_ATTR_RGBE_ENABLE |
 		    ZX_ROP_NEW /* | ZX_ATTR_FORCE_WID */);
 	}
+
+	sc->sc_mode = mode;
 }
 
 int
@@ -576,7 +543,7 @@ zx_burner(void *v, u_int on, u_int flags)
 
 void
 zx_fillrect(struct rasops_info *ri, int x, int y, int w, int h, long attr,
-	    int rop)
+    int rop)
 {
 	struct zx_softc *sc;
 	volatile struct zx_command *zc;
@@ -604,7 +571,7 @@ zx_fillrect(struct rasops_info *ri, int x, int y, int w, int h, long attr,
 
 void
 zx_copyrect(struct rasops_info *ri, int sx, int sy, int dx, int dy, int w,
-	    int h)
+    int h)
 {
 	struct zx_softc *sc;
 	volatile struct zx_command *zc;