Remove the ega driver which is not referenced by any GENERIC kernel.

ok tedu@, "I won't mourn it" miod@, "no objection" oga@,
"I won't cry" todd@,  "fine, even happy" nick@

3 files changed, 1 insertions, 1018 deletions

diff --git a/sys/dev/isa/ega.c b/sys/dev/isa/ega.c
deleted file mode 100644
index 061a7c36799..00000000000
--- a/sys/dev/isa/ega.c
+++ /dev/null
@@ -1,982 +0,0 @@
-/* $OpenBSD: ega.c,v 1.16 2011/06/17 07:06:47 mk Exp $ */
-/* $NetBSD: ega.c,v 1.4.4.1 2000/06/30 16:27:47 simonb Exp $ */
-
-/*
- * Copyright (c) 1999
- *	Matthias Drochner.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/kernel.h>
-#include <sys/device.h>
-#include <sys/malloc.h>
-#include <sys/timeout.h>
-#include <machine/bus.h>
-
-#include <dev/isa/isavar.h>
-
-#include <dev/ic/mc6845reg.h>
-#include <dev/ic/pcdisplayvar.h>
-#include <dev/ic/vgareg.h>
-#include <dev/ic/vgavar.h>
-#include <dev/isa/egavar.h>
-
-#include <dev/ic/pcdisplay.h>
-
-#include <dev/wscons/wsconsio.h>
-#include <dev/wscons/wsdisplayvar.h>
-
-static struct egafont {
-	char name[WSFONT_NAME_SIZE];
-	int height;
-	int encoding;
-	int slot;
-} ega_builtinfont = {
-	"builtin",
-	14,
-	WSDISPLAY_FONTENC_IBM,
-	0
-};
-
-struct egascreen {
-	struct pcdisplayscreen pcs;
-	LIST_ENTRY(egascreen) next;
-	struct ega_config *cfg;
-	struct egafont *fontset1, *fontset2;
-
-	int mindispoffset, maxdispoffset;
-};
-
-struct ega_config {
-	struct vga_handle hdl;
-
-	int nscreens;
-	LIST_HEAD(, egascreen) screens;
-	struct egascreen *active; /* current display */
-	const struct wsscreen_descr *currenttype;
-	int currentfontset1, currentfontset2;
-
-	struct egafont *vc_fonts[4];
-
-	struct egascreen *wantedscreen;
-	void (*switchcb)(void *, int, int);
-	void *switchcbarg;
-
-	struct timeout switch_timeout;
-};
-
-struct ega_softc {
-	struct device sc_dev;
-	struct ega_config *sc_dc;
-	int nscreens;
-};
-
-static int egaconsole, ega_console_attached;
-static struct egascreen ega_console_screen;
-static struct ega_config ega_console_dc;
-
-int	ega_match(struct device *, void *, void *);
-void	ega_attach(struct device *, struct device *, void *);
-
-static int ega_is_console(bus_space_tag_t);
-static int ega_probe_col(bus_space_tag_t, bus_space_tag_t);
-static int ega_probe_mono(bus_space_tag_t, bus_space_tag_t);
-int ega_selectfont(struct ega_config *, struct egascreen *,
-			char *, char *);
-void ega_init_screen(struct ega_config *, struct egascreen *,
-			  const struct wsscreen_descr *,
-			  int, long *);
-static void ega_init(struct ega_config *,
-			  bus_space_tag_t, bus_space_tag_t, int);
-static void ega_setfont(struct ega_config *, struct egascreen *);
-static int ega_alloc_attr(void *, int, int, int, long *);
-static void ega_unpack_attr(void *, long, int *, int *, int *);
-int ega_copyrows(void *, int, int, int);
-
-struct cfattach ega_ca = {
-	sizeof(struct ega_softc), ega_match, ega_attach,
-};
-
-struct cfdriver ega_cd = {
-	NULL, "ega", DV_DULL,
-};
-
-const struct wsdisplay_emulops ega_emulops = {
-	pcdisplay_cursor,
-	pcdisplay_mapchar,
-	pcdisplay_putchar,
-	pcdisplay_copycols,
-	pcdisplay_erasecols,
-	ega_copyrows,
-	pcdisplay_eraserows,
-	ega_alloc_attr,
-	ega_unpack_attr
-};
-
-/*
- * translate WS(=ANSI) color codes to standard pc ones
- */
-static const unsigned char fgansitopc[] = {
-	FG_BLACK, FG_RED, FG_GREEN, FG_BROWN, FG_BLUE,
-	FG_MAGENTA, FG_CYAN, FG_LIGHTGREY
-}, bgansitopc[] = {
-	BG_BLACK, BG_RED, BG_GREEN, BG_BROWN, BG_BLUE,
-	BG_MAGENTA, BG_CYAN, BG_LIGHTGREY
-};
-
-/*
- * translate standard pc color codes to WS(=ANSI) ones
- */
-static const u_int8_t pctoansi[] = {
-#ifdef __alpha__
-	WSCOL_BLACK, WSCOL_RED, WSCOL_GREEN, WSCOL_BROWN,
-	WSCOL_BLUE, WSCOL_MAGENTA, WSCOL_CYAN, WSCOL_WHITE
-#else
-	WSCOL_BLACK, WSCOL_BLUE, WSCOL_GREEN, WSCOL_CYAN,
-	WSCOL_RED, WSCOL_MAGENTA, WSCOL_BROWN, WSCOL_WHITE
-#endif
-};
-const struct wsscreen_descr ega_stdscreen = {
-	"80x25", 80, 25,
-	&ega_emulops,
-	8, 14,
-	WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_BLINK
-}, ega_stdscreen_mono = {
-	"80x25", 80, 25,
-	&ega_emulops,
-	8, 14,
-	WSSCREEN_HILIT | WSSCREEN_UNDERLINE | WSSCREEN_BLINK | WSSCREEN_REVERSE
-}, ega_stdscreen_bf = {
-	"80x25bf", 80, 25,
-	&ega_emulops,
-	8, 14,
-	WSSCREEN_WSCOLORS | WSSCREEN_BLINK
-}, ega_35lscreen = {
-	"80x35", 80, 35,
-	&ega_emulops,
-	8, 10,
-	WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_BLINK
-}, ega_35lscreen_mono = {
-	"80x35", 80, 35,
-	&ega_emulops,
-	8, 10,
-	WSSCREEN_HILIT | WSSCREEN_UNDERLINE | WSSCREEN_BLINK | WSSCREEN_REVERSE
-}, ega_35lscreen_bf = {
-	"80x35bf", 80, 35,
-	&ega_emulops,
-	8, 10,
-	WSSCREEN_WSCOLORS | WSSCREEN_BLINK
-}, ega_43lscreen = {
-	"80x43", 80, 43,
-	&ega_emulops,
-	8, 8,
-	WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_BLINK
-}, ega_43lscreen_mono = {
-	"80x43", 80, 43,
-	&ega_emulops,
-	8, 8,
-	WSSCREEN_HILIT | WSSCREEN_UNDERLINE | WSSCREEN_BLINK | WSSCREEN_REVERSE
-}, ega_43lscreen_bf = {
-	"80x43bf", 80, 43,
-	&ega_emulops,
-	8, 8,
-	WSSCREEN_WSCOLORS | WSSCREEN_BLINK
-};
-
-#define VGA_SCREEN_CANTWOFONTS(type) (!((type)->capabilities & WSSCREEN_HILIT))
-
-const struct wsscreen_descr *_ega_scrlist[] = {
-	&ega_stdscreen,
-	&ega_stdscreen_bf,
-	&ega_35lscreen,
-	&ega_35lscreen_bf,
-	&ega_43lscreen,
-	&ega_43lscreen_bf,
-}, *_ega_scrlist_mono[] = {
-	&ega_stdscreen_mono,
-	&ega_35lscreen_mono,
-	&ega_43lscreen_mono,
-};
-
-
-const struct wsscreen_list ega_screenlist = {
-	sizeof(_ega_scrlist) / sizeof(struct wsscreen_descr *),
-	_ega_scrlist
-}, ega_screenlist_mono = {
-	sizeof(_ega_scrlist_mono) / sizeof(struct wsscreen_descr *),
-	_ega_scrlist_mono
-};
-
-static int ega_ioctl(void *, u_long, caddr_t, int, struct proc *);
-static paddr_t ega_mmap(void *, off_t, int);
-static int ega_alloc_screen(void *, const struct wsscreen_descr *,
-			    void **, int *, int *, long *);
-static void ega_free_screen(void *, void *);
-static int ega_show_screen(void *, void *, int,
-			   void (*) (void *, int, int), void *);
-static int ega_load_font(void *, void *, struct wsdisplay_font *);
-
-void ega_doswitch(struct ega_config *);
-
-const struct wsdisplay_accessops ega_accessops = {
-	ega_ioctl,
-	ega_mmap,
-	ega_alloc_screen,
-	ega_free_screen,
-	ega_show_screen,
-	ega_load_font
-};
-
-static int
-ega_probe_col(iot, memt)
-	bus_space_tag_t iot, memt;
-{
-	bus_space_handle_t memh, ioh_6845;
-	u_int16_t oldval, val;
-
-	if (bus_space_map(memt, 0xb8000, 0x8000, 0, &memh))
-		return (0);
-	oldval = bus_space_read_2(memt, memh, 0);
-	bus_space_write_2(memt, memh, 0, 0xa55a);
-	val = bus_space_read_2(memt, memh, 0);
-	bus_space_write_2(memt, memh, 0, oldval);
-	bus_space_unmap(memt, memh, 0x8000);
-	if (val != 0xa55a)
-		return (0);
-
-	if (bus_space_map(iot, 0x3d0, 0x10, 0, &ioh_6845))
-		return (0);
-	bus_space_unmap(iot, ioh_6845, 0x10);
-
-	return (1);
-}
-
-static int
-ega_probe_mono(iot, memt)
-	bus_space_tag_t iot, memt;
-{
-	bus_space_handle_t memh, ioh_6845;
-	u_int16_t oldval, val;
-
-	if (bus_space_map(memt, 0xb0000, 0x8000, 0, &memh))
-		return (0);
-	oldval = bus_space_read_2(memt, memh, 0);
-	bus_space_write_2(memt, memh, 0, 0xa55a);
-	val = bus_space_read_2(memt, memh, 0);
-	bus_space_write_2(memt, memh, 0, oldval);
-	bus_space_unmap(memt, memh, 0x8000);
-	if (val != 0xa55a)
-		return (0);
-
-	if (bus_space_map(iot, 0x3b0, 0x10, 0, &ioh_6845))
-		return (0);
-	bus_space_unmap(iot, ioh_6845, 0x10);
-
-	return (1);
-}
-/*
- * We want at least ASCII 32..127 be present in the
- * first font slot.
- */
-#define vga_valid_primary_font(f) \
-	(f->encoding == WSDISPLAY_FONTENC_IBM || \
-	f->encoding == WSDISPLAY_FONTENC_ISO)
-
-int
-ega_selectfont(vc, scr, name1, name2)
-	struct ega_config *vc;
-	struct egascreen *scr;
-	char *name1, *name2; /* NULL: take first found */
-{
-	const struct wsscreen_descr *type = scr->pcs.type;
-	struct egafont *f1, *f2;
-	int i;
-
-	f1 = f2 = 0;
-
-	for (i = 0; i < 4; i++) {
-		struct egafont *f = vc->vc_fonts[i];
-		if (!f || f->height != type->fontheight)
-			continue;
-		if (!f1 &&
-		    vga_valid_primary_font(f) &&
-		    (!name1 || !strcmp(name1, f->name))) {
-			f1 = f;
-			continue;
-		}
-		if (!f2 &&
-		    VGA_SCREEN_CANTWOFONTS(type) &&
-		    (!name2 || !strcmp(name2, f->name))) {
-			f2 = f;
-			continue;
-		}
-	}
-
-	/*
-	 * The request fails if no primary font was found,
-	 * or if a second font was requested but not found.
-	 */
-	if (f1 && (!name2 || f2)) {
-#ifdef EGAFONTDEBUG
-		if (scr != &ega_console_screen || ega_console_attached) {
-			printf("ega (%s): font1=%s (slot %d)", type->name,
-			       f1->name, f1->slot);
-			if (f2)
-				printf(", font2=%s (slot %d)",
-				       f2->name, f2->slot);
-			printf("\n");
-		}
-#endif
-		scr->fontset1 = f1;
-		scr->fontset2 = f2;
-		return (0);
-	}
-	return (ENXIO);
-}
-
-void
-ega_init_screen(vc, scr, type, existing, attrp)
-	struct ega_config *vc;
-	struct egascreen *scr;
-	const struct wsscreen_descr *type;
-	int existing;
-	long *attrp;
-{
-	int cpos;
-	int res;
-
-	scr->cfg = vc;
-	scr->pcs.hdl = (struct pcdisplay_handle *)&vc->hdl;
-	scr->pcs.type = type;
-	scr->pcs.active = 0;
-	scr->mindispoffset = 0;
-	scr->maxdispoffset = 0x8000 - type->nrows * type->ncols * 2;
-
-	if (existing) {
-		cpos = vga_6845_read(&vc->hdl, cursorh) << 8;
-		cpos |= vga_6845_read(&vc->hdl, cursorl);
-
-		/* make sure we have a valid cursor position */
-		if (cpos < 0 || cpos >= type->nrows * type->ncols)
-			cpos = 0;
-
-		scr->pcs.dispoffset = vga_6845_read(&vc->hdl, startadrh) << 9;
-		scr->pcs.dispoffset |= vga_6845_read(&vc->hdl, startadrl) << 1;
-
-		/* make sure we have a valid memory offset */
-		if (scr->pcs.dispoffset < scr->mindispoffset ||
-		    scr->pcs.dispoffset > scr->maxdispoffset)
-			scr->pcs.dispoffset = scr->mindispoffset;
-	} else {
-		cpos = 0;
-		scr->pcs.dispoffset = scr->mindispoffset;
-	}
-
-	scr->pcs.vc_crow = cpos / type->ncols;
-	scr->pcs.vc_ccol = cpos % type->ncols;
-	pcdisplay_cursor_init(&scr->pcs, existing);
-
-	res = ega_alloc_attr(scr, 0, 0, 0, attrp);
-#ifdef DIAGNOSTIC
-	if (res)
-		panic("ega_init_screen: attribute botch");
-#endif
-
-	scr->pcs.mem = NULL;
-
-	scr->fontset1 = scr->fontset2 = 0;
-	if (ega_selectfont(vc, scr, 0, 0)) {
-		if (scr == &ega_console_screen)
-			panic("ega_init_screen: no font");
-		else
-			printf("ega_init_screen: no font\n");
-	}
-
-	vc->nscreens++;
-	LIST_INSERT_HEAD(&vc->screens, scr, next);
-}
-
-static void
-ega_init(vc, iot, memt, mono)
-	struct ega_config *vc;
-	bus_space_tag_t iot, memt;
-	int mono;
-{
-	struct vga_handle *vh = &vc->hdl;
-	int i;
-
-        vh->vh_iot = iot;
-        vh->vh_memt = memt;
-	vh->vh_mono = mono;
-
-        if (bus_space_map(vh->vh_iot, 0x3c0, 0x10, 0, &vh->vh_ioh_vga))
-                panic("ega_common_setup: can't map ega i/o");
-
-	if (bus_space_map(vh->vh_iot, (vh->vh_mono ? 0x3b0 : 0x3d0), 0x10, 0,
-			  &vh->vh_ioh_6845))
-                panic("ega_common_setup: can't map 6845 i/o");
-
-        if (bus_space_map(vh->vh_memt, 0xa0000, 0x20000, 0, &vh->vh_allmemh))
-                panic("ega_common_setup: can't map mem space");
-
-        if (bus_space_subregion(vh->vh_memt, vh->vh_allmemh,
-				(vh->vh_mono ? 0x10000 : 0x18000), 0x8000,
-				&vh->vh_memh))
-                panic("ega_common_setup: mem subrange failed");
-
-	vc->nscreens = 0;
-	LIST_INIT(&vc->screens);
-	vc->active = NULL;
-	vc->currenttype = vh->vh_mono ? &ega_stdscreen_mono : &ega_stdscreen;
-
-	vc->vc_fonts[0] = &ega_builtinfont;
-	for (i = 1; i < 4; i++)
-		vc->vc_fonts[i] = 0;
-
-	vc->currentfontset1 = vc->currentfontset2 = 0;
-}
-
-int
-ega_match(parent, match, aux)
-	struct device *parent;
-	void *match;
-	void *aux;
-{
-	struct isa_attach_args *ia = aux;
-	int mono;
-
-	/* If values are hardwired to something that they can't be, punt. */
-	if ((ia->ia_iobase != IOBASEUNK &&
-	     ia->ia_iobase != 0x3d0 &&
-	     ia->ia_iobase != 0x3b0) ||
-	    /* ia->ia_iosize != 0 || XXX isa.c */
-	    (ia->ia_maddr != MADDRUNK &&
-	     ia->ia_maddr != 0xb8000 &&
-	     ia->ia_maddr != 0xb0000) ||
-	    (ia->ia_msize != 0 && ia->ia_msize != 0x8000) ||
-	    ia->ia_irq != IRQUNK || ia->ia_drq != DRQUNK)
-		return (0);
-
-	if (ega_is_console(ia->ia_iot))
-		mono = ega_console_dc.hdl.vh_mono;
-	else if (ia->ia_iobase != 0x3b0 && ia->ia_maddr != 0xb0000 &&
-		 ega_probe_col(ia->ia_iot, ia->ia_memt))
-		mono = 0;
-	else if (ia->ia_iobase != 0x3d0 && ia->ia_maddr != 0xb8000 &&
-		ega_probe_mono(ia->ia_iot, ia->ia_memt))
-		mono = 1;
-	else
-		return (0);
-
-	ia->ia_iobase = mono ? 0x3b0 : 0x3d0;
-	ia->ia_iosize = 0x10;
-	ia->ia_maddr = mono ? 0xb0000 : 0xb8000;
-	ia->ia_msize = 0x8000;
-	return (2); /* beat pcdisplay */
-}
-
-void
-ega_attach(parent, self, aux)
-	struct device *parent, *self;
-	void *aux;
-{
-	struct isa_attach_args *ia = aux;
-	struct ega_softc *sc = (struct ega_softc *)self;
-	int console;
-	struct ega_config *dc;
-	struct wsemuldisplaydev_attach_args aa;
-
-	printf("\n");
-
-	console = ega_is_console(ia->ia_iot);
-
-	if (console) {
-		dc = &ega_console_dc;
-		sc->nscreens = 1;
-		ega_console_attached = 1;
-	} else {
-		dc = malloc(sizeof(struct ega_config),
-			    M_DEVBUF, M_WAITOK);
-		if (ia->ia_iobase != 0x3b0 && ia->ia_maddr != 0xb0000 &&
-		    ega_probe_col(ia->ia_iot, ia->ia_memt))
-			ega_init(dc, ia->ia_iot, ia->ia_memt, 0);
-		else if (ia->ia_iobase != 0x3d0 && ia->ia_maddr != 0xb8000 &&
-			 ega_probe_mono(ia->ia_iot, ia->ia_memt))
-			ega_init(dc, ia->ia_iot, ia->ia_memt, 1);
-		else
-			panic("ega_attach: display disappeared");
-	}
-	sc->sc_dc = dc;
-
-	aa.console = console;
-	aa.scrdata = &ega_screenlist;
-	aa.accessops = &ega_accessops;
-	aa.accesscookie = dc;
-	aa.defaultscreens = 0;
-
-        config_found(self, &aa, wsemuldisplaydevprint);
-}
-
-
-int
-ega_cnattach(iot, memt)
-	bus_space_tag_t iot, memt;
-{
-	int mono;
-	long defattr;
-	const struct wsscreen_descr *scr;
-
-	if (ega_probe_col(iot, memt))
-		mono = 0;
-	else if (ega_probe_mono(iot, memt))
-		mono = 1;
-	else
-		return (ENXIO);
-
-	ega_init(&ega_console_dc, iot, memt, mono);
-	scr = ega_console_dc.currenttype;
-	ega_init_screen(&ega_console_dc, &ega_console_screen, scr, 1, &defattr);
-
-	ega_console_screen.pcs.active = 1;
-	ega_console_dc.active = &ega_console_screen;
-
-	wsdisplay_cnattach(scr, &ega_console_screen,
-			   ega_console_screen.pcs.vc_ccol,
-			   ega_console_screen.pcs.vc_crow,
-			   defattr);
-
-	egaconsole = 1;
-	return (0);
-}
-
-static int
-ega_is_console(iot)
-	bus_space_tag_t iot;
-{
-	if (egaconsole &&
-	    !ega_console_attached &&
-	    iot == ega_console_dc.hdl.vh_iot)
-		return (1);
-	return (0);
-}
-
-static int
-ega_ioctl(v, cmd, data, flag, p)
-	void *v;
-	u_long cmd;
-	caddr_t data;
-	int flag;
-	struct proc *p;
-{
-	/*
-	 * XXX "do something!"
-	 */
-	return (-1);
-}
-
-static paddr_t
-ega_mmap(v, offset, prot)
-	void *v;
-	off_t offset;
-	int prot;
-{
-	return (-1);
-}
-
-static int
-ega_alloc_screen(v, type, cookiep, curxp, curyp, defattrp)
-	void *v;
-	const struct wsscreen_descr *type;
-	void **cookiep;
-	int *curxp, *curyp;
-	long *defattrp;
-{
-	struct ega_config *vc = v;
-	struct egascreen *scr;
-
-	if (vc->nscreens == 1) {
-		/*
-		 * When allocating the second screen, get backing store
-		 * for the first one too.
-		 * XXX We could be more clever and use video RAM.
-		 */
-		scr = LIST_FIRST(&vs->screens);
-		scr->pcs.mem =
-		  malloc(scr->pcs.type->ncols * scr->pcs.type->nrows * 2,
-		    M_DEVBUF, M_WAITOK);
-	}
-
-	scr = malloc(sizeof(struct egascreen), M_DEVBUF, M_WAITOK);
-	ega_init_screen(vc, scr, type, vc->nscreens == 0, defattrp);
-
-	if (vc->nscreens == 1) {
-		scr->pcs.active = 1;
-		vc->active = scr;
-		vc->currenttype = type;
-	} else {
-		scr->pcs.mem = malloc(type->ncols * type->nrows * 2,
-				      M_DEVBUF, M_WAITOK);
-		pcdisplay_eraserows(&scr->pcs, 0, type->nrows, *defattrp);
-	}
-
-	*cookiep = scr;
-	*curxp = scr->pcs.vc_ccol;
-	*curyp = scr->pcs.vc_crow;
-	return (0);
-}
-
-static void
-ega_free_screen(v, cookie)
-	void *v;
-	void *cookie;
-{
-	struct egascreen *vs = cookie;
-	struct ega_config *vc = vs->cfg;
-
-	LIST_REMOVE(vs, next);
-	if (vs != &ega_console_screen) {
-		/*
-		 * deallocating the one but last screen
-		 * removes backing store for the last one
-		 */
-		if (vc->nscreens == 1)
-			free(LIST_FIRST(&vc->screens)->pcs.mem, M_DEVBUF);
-
-		/* Last screen has no backing store */
-		if (vc->nscreens != 0)
-			free(vs->pcs.mem, M_DEVBUF);
-
-		free(vs, M_DEVBUF);
-	} else
-		panic("ega_free_screen: console");
-
-	if (vc->active == vs)
-		vc->active = NULL;
-}
-
-static void
-ega_setfont(vc, scr)
-	struct ega_config *vc;
-	struct egascreen *scr;
-{
-	int fontslot1, fontslot2;
-
-	fontslot1 = (scr->fontset1 ? scr->fontset1->slot : 0);
-	fontslot2 = (scr->fontset2 ? scr->fontset2->slot : fontslot1);
-	if (vc->currentfontset1 != fontslot1 ||
-	    vc->currentfontset2 != fontslot2) {
-		vga_setfontset(&vc->hdl, 2 * fontslot1, 2 * fontslot2);
-		vc->currentfontset1 = fontslot1;
-		vc->currentfontset2 = fontslot2;
-	}
-}
-
-static int
-ega_show_screen(v, cookie, waitok, cb, cbarg)
-	void *v;
-	void *cookie;
-	int waitok;
-	void (*cb)(void *, int, int);
-	void *cbarg;
-{
-	struct egascreen *scr = cookie, *oldscr;
-	struct ega_config *vc = scr->cfg;
-
-	oldscr = vc->active; /* can be NULL! */
-	if (scr == oldscr) {
-		return (0);
-	}
-
-	vc->wantedscreen = cookie;
-	vc->switchcb = cb;
-	vc->switchcbarg = cbarg;
-	if (cb) {
-		timeout_set(&vc->switch_timeout,
-		    (void(*)(void *))ega_doswitch, vc);
-		timeout_add(&vc->switch_timeout, 0);
-		return (EAGAIN);
-	}
-
-	ega_doswitch(vc);
-	return (0);
-}
-
-void
-ega_doswitch(vc)
-	struct ega_config *vc;
-{
-	struct egascreen *scr, *oldscr;
-	struct vga_handle *vh = &vc->hdl;
-	const struct wsscreen_descr *type;
-
-	scr = vc->wantedscreen;
-	if (!scr) {
-		printf("ega_doswitch: disappeared\n");
-		(*vc->switchcb)(vc->switchcbarg, EIO, 0);
-		return;
-	}
-	type = scr->pcs.type;
-	oldscr = vc->active; /* can be NULL! */
-#ifdef DIAGNOSTIC
-	if (oldscr) {
-		if (!oldscr->pcs.active)
-			panic("ega_show_screen: not active");
-		if (oldscr->pcs.type != vc->currenttype)
-			panic("ega_show_screen: bad type");
-	}
-#endif
-	if (scr == oldscr) {
-		return;
-	}
-#ifdef DIAGNOSTIC
-	if (scr->pcs.active)
-		panic("ega_show_screen: active");
-#endif
-
-	if (oldscr) {
-		const struct wsscreen_descr *oldtype = oldscr->pcs.type;
-
-		oldscr->pcs.active = 0;
-		bus_space_read_region_2(vh->vh_memt, vh->vh_memh,
-					oldscr->pcs.dispoffset, oldscr->pcs.mem,
-					oldtype->ncols * oldtype->nrows);
-	}
-
-	if (vc->currenttype != type) {
-		vga_setscreentype(vh, type);
-		vc->currenttype = type;
-	}
-
-	ega_setfont(vc, scr);
-	/* XXX swich colours! */
-
-	scr->pcs.dispoffset = scr->mindispoffset;
-	if (!oldscr || (scr->pcs.dispoffset != oldscr->pcs.dispoffset)) {
-		vga_6845_write(vh, startadrh, scr->pcs.dispoffset >> 9);
-		vga_6845_write(vh, startadrl, scr->pcs.dispoffset >> 1);
-	}
-
-	bus_space_write_region_2(vh->vh_memt, vh->vh_memh,
-				scr->pcs.dispoffset, scr->pcs.mem,
-				type->ncols * type->nrows);
-	scr->pcs.active = 1;
-
-	vc->active = scr;
-
-	pcdisplay_cursor_reset(&scr->pcs);
-	pcdisplay_cursor(&scr->pcs, scr->pcs.cursoron,
-			 scr->pcs.vc_crow, scr->pcs.vc_ccol);
-
-	vc->wantedscreen = 0;
-	if (vc->switchcb)
-		(*vc->switchcb)(vc->switchcbarg, 0, 0);
-}
-
-static int
-ega_load_font(v, cookie, data)
-	void *v;
-	void *cookie;
-	struct wsdisplay_font *data;
-{
-	struct ega_config *vc = v;
-	struct egascreen *scr = cookie;
-	char *name2;
-	int res, slot;
-	struct egafont *f;
-
-	if (scr) {
-		if ((name2 = data->name) != NULL) {
-			while (*name2 && *name2 != ',')
-				name2++;
-			if (name2)
-				*name2++ = '\0';
-		}
-		res = ega_selectfont(vc, scr, data->name, name2);
-		if (!res)
-			ega_setfont(vc, scr);
-		return (res);
-	}
-
-	if (data->fontwidth != 8 || data->stride != 1)
-		return (EINVAL); /* XXX 1 byte per line */
-	if (data->firstchar != 0 || data->numchars != 256)
-		return (EINVAL);
-#ifndef WSCONS_SUPPORT_PCVTFONTS
-	if (data->encoding == WSDISPLAY_FONTENC_PCVT) {
-		printf("vga: pcvt font support not built in, see vga(4)\n");
-		return (EINVAL);
-	}
-#endif
-
-	if (data->index < 0) {
-		for (slot = 0; slot < 4; slot++)
-			if (!vc->vc_fonts[slot])
-				break;
-	} else
-		slot = data->index;
-
-	if (slot >= 4)
-		return (ENOSPC);
-
-	if (vc->vc_fonts[slot] != NULL)
-		return (EEXIST);
-	f = malloc(sizeof(struct egafont), M_DEVBUF, M_WAITOK | M_CANFAIL);
-	if (f == NULL)
-		return (ENOMEM);
-	strlcpy(f->name, data->name, sizeof(f->name));
-	f->height = data->fontheight;
-	f->encoding = data->encoding;
-#ifdef notyet
-	f->firstchar = data->firstchar;
-	f->numchars = data->numchars;
-#endif
-#ifdef EGAFONTDEBUG
-	printf("ega: load %s (8x%d, enc %d) font to slot %d\n", f->name,
-	       f->height, f->encoding, slot);
-#endif
-	vga_loadchars(&vc->hdl, 2 * slot, 0, 256, f->height, data->data);
-	f->slot = slot;
-	vc->vc_fonts[slot] = f;
-	data->cookie = f;
-	data->index = slot;
-
-	return (0);
-}
-
-static int
-ega_alloc_attr(id, fg, bg, flags, attrp)
-	void *id;
-	int fg, bg;
-	int flags;
-	long *attrp;
-{
-	struct egascreen *scr = id;
-	struct ega_config *vc = scr->cfg;
-
-	if (vc->hdl.vh_mono) {
-		if (flags & WSATTR_WSCOLORS)
-			return (EINVAL);
-		if (flags & WSATTR_REVERSE)
-			*attrp = 0x70;
-		else
-			*attrp = 0x07;
-		if (flags & WSATTR_UNDERLINE)
-			*attrp |= FG_UNDERLINE;
-		if (flags & WSATTR_HILIT)
-			*attrp |= FG_INTENSE;
-	} else {
-		if (flags & (WSATTR_UNDERLINE | WSATTR_REVERSE))
-			return (EINVAL);
-		if (flags & WSATTR_WSCOLORS)
-			*attrp = fgansitopc[fg & 7] | bgansitopc[bg & 7];
-		else
-			*attrp = 7;
-		if ((flags & WSATTR_HILIT) || (fg & 8) || (bg & 8))
-			*attrp += 8;
-	}
-	if (flags & WSATTR_BLINK)
-		*attrp |= FG_BLINK;
-	return (0);
-}
-
-void
-ega_unpack_attr(id, attr, fg, bg, ul)
-	void *id;
-	long attr;
-	int *fg, *bg, *ul;
-{
-	struct egascreen *scr = id;
-	struct ega_config *vc = scr->cfg;
-
-	if (vc->hdl.vh_mono) {
-		*fg = (attr & 0x07) == 0x07 ? WSCOL_WHITE : WSCOL_BLACK;
-		*bg = attr & 0x70 ? WSCOL_WHITE : WSCOL_BLACK;
-		if (ul != NULL)
-			*ul = *fg != WSCOL_WHITE && (attr & 0x01) ? 1 : 0;
-	} else {
-		*fg = pctoansi[attr & 0x07];
-		*bg = pctoansi[(attr & 0x70) >> 4];
-		if (ul != NULL)
-			*ul = 0;
-	}
-	if (attr & FG_INTENSE)
-		*fg += 8;
-}
-
-int
-ega_copyrows(id, srcrow, dstrow, nrows)
-	void *id;
-	int srcrow, dstrow, nrows;
-{
-	struct egascreen *scr = id;
-	bus_space_tag_t memt = scr->pcs.hdl->ph_memt;
-	bus_space_handle_t memh = scr->pcs.hdl->ph_memh;
-	int ncols = scr->pcs.type->ncols;
-	bus_size_t srcoff, dstoff;
-
-	srcoff = srcrow * ncols + 0;
-	dstoff = dstrow * ncols + 0;
-
-	if (scr->pcs.active) {
-		if (dstrow == 0 && (srcrow + nrows == scr->pcs.type->nrows)) {
-#ifdef PCDISPLAY_SOFTCURSOR
-			int cursoron = scr->pcs.cursoron;
-
-			if (cursoron)
-				pcdisplay_cursor(&scr->pcs, 0,
-				    scr->pcs.vc_crow, scr->pcs.vc_ccol);
-#endif
-			/* scroll up whole screen */
-			if ((scr->pcs.dispoffset + srcrow * ncols * 2)
-			    <= scr->maxdispoffset) {
-				scr->pcs.dispoffset += srcrow * ncols * 2;
-			} else {
-				bus_space_copy_2(memt, memh,
-					scr->pcs.dispoffset + srcoff * 2,
-					memh, scr->mindispoffset,
-					nrows * ncols);
-				scr->pcs.dispoffset = scr->mindispoffset;
-			}
-			vga_6845_write(&scr->cfg->hdl, startadrh,
-				       scr->pcs.dispoffset >> 9);
-			vga_6845_write(&scr->cfg->hdl, startadrl,
-				       scr->pcs.dispoffset >> 1);
-#ifdef PCDISPLAY_SOFTCURSOR
-			if (cursoron)
-				pcdisplay_cursor(&scr->pcs, 1,
-				    scr->pcs.vc_crow, scr->pcs.vc_ccol);
-#endif
-		} else {
-			bus_space_copy_2(memt, memh,
-					scr->pcs.dispoffset + srcoff * 2,
-					memh, scr->pcs.dispoffset + dstoff * 2,
-					nrows * ncols);
-		}
-	} else
-		bcopy(&scr->pcs.mem[srcoff], &scr->pcs.mem[dstoff],
-		      nrows * ncols * 2);
-
-	return 0;
-}
diff --git a/sys/dev/isa/egavar.h b/sys/dev/isa/egavar.h
deleted file mode 100644
index 37a4fbf69f8..00000000000
--- a/sys/dev/isa/egavar.h
+++ /dev/null
@@ -1,30 +0,0 @@
-/* $OpenBSD: egavar.h,v 1.4 2004/04/02 04:39:51 deraadt Exp $ */
-/* $NetBSD: egavar.h,v 1.1 1999/12/13 16:28:57 drochner Exp $ */
-
-/*
- * Copyright (c) 1999
- *	Matthias Drochner.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-int ega_cnattach(bus_space_tag_t, bus_space_tag_t);
diff --git a/sys/dev/isa/files.isa b/sys/dev/isa/files.isa
index d408cde0408..1b407e9d74a 100644
--- a/sys/dev/isa/files.isa
+++ b/sys/dev/isa/files.isa
@@ -1,4 +1,4 @@
-#	$OpenBSD: files.isa,v 1.109 2011/06/26 23:19:11 tedu Exp $
+#	$OpenBSD: files.isa,v 1.110 2011/06/28 20:19:19 matthieu Exp $
 #	$NetBSD: files.isa,v 1.21 1996/05/16 03:45:55 mycroft Exp $
 #
 # Config file and device description for machine-independent ISA code.
@@ -77,11 +77,6 @@ file	dev/isa/pckbc_isa.c		pckbc_isa	needs-flag
 attach	vga at isa with vga_isa
 file	dev/isa/vga_isa.c		vga_isa
 
-# Generic EGA
-device	ega: wsemuldisplaydev, pcdisplayops
-attach	ega at isa
-file	dev/isa/ega.c			ega	needs-flag
-
 # Generic PC graphics adapter (MGA, CGA, ...)
 device	pcdisplay: wsemuldisplaydev, pcdisplayops
 attach	pcdisplay at isa