Introduce odyssey(4), a driver for the SGI VPro (aka Odyssey) graphics

card, which can be found in Octane, Octane2, Fuel, Tezro and Onyx systems.

ok miod@

7 files changed, 1180 insertions, 5 deletions

diff --git a/share/man/man4/man4.sgi/Makefile b/share/man/man4/man4.sgi/Makefile
index 4324cb39131..8920c2f758a 100644
--- a/share/man/man4/man4.sgi/Makefile
+++ b/share/man/man4/man4.sgi/Makefile
@@ -1,7 +1,7 @@
-#	$OpenBSD: Makefile,v 1.16 2009/11/10 17:08:06 miod Exp $
+#	$OpenBSD: Makefile,v 1.17 2010/03/04 14:50:35 jsing Exp $
 
 MAN=	dsrtc.4 gbe.4 iec.4 intro.4 ioc.4 iockbc.4 iof.4 \
-	macebus.4 mavb.4 mec.4 mkbc.4 \
+	macebus.4 mavb.4 mec.4 mkbc.4 odyssey.4 \
 	owmac.4 owserial.4 power.4 xbow.4 xbridge.4 xheart.4
 MLINKS=	macebus.4 macepcibr.4 \
 	xbridge.4 xbpci.4
diff --git a/share/man/man4/man4.sgi/odyssey.4 b/share/man/man4/man4.sgi/odyssey.4
new file mode 100644
index 00000000000..33783b40d5f
--- /dev/null
+++ b/share/man/man4/man4.sgi/odyssey.4
@@ -0,0 +1,55 @@
+.\"     $OpenBSD: odyssey.4,v 1.1 2010/03/04 14:50:35 jsing Exp $
+.\"
+.\" Copyright (c) 2010 Joel Sing <jsing@openbsd.org>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: March 4 2010 $
+.Dt ODYSSEY 4 sgi
+.Os
+.Sh NAME
+.Nm odyssey
+.Nd SGI VPro (aka Odyssey) graphics card driver
+.Sh SYNOPSIS
+.Cd "odyssey* at xbow?"
+.Cd "wsdisplay* at odyssey?"
+.Sh DESCRIPTION
+The
+.Nm
+driver provides support for the VPro (aka Odyssey) graphics card, which can be
+found in SGI
+.Tn Octane ,
+.Tn Octane2 ,
+.Tn Fuel ,
+.Tn Tezro
+and
+.Tn Onyx
+systems.
+Console support is provided by the
+.Xr wscons 4
+console framework.
+.Sh SEE ALSO
+.Xr intro 4 ,
+.Xr wscons 4 ,
+.Xr wsdisplay 4 ,
+.Xr xbow 4
+.Sh HISTORY
+The
+.Nm
+driver first appeared in
+.Ox 4.7 .
+.Sh AUTHORS
+The
+.Nm
+driver was written by
+.An Joel Sing .
diff --git a/sys/arch/sgi/conf/GENERIC-IP27 b/sys/arch/sgi/conf/GENERIC-IP27
index 4581bfe74b9..ec5bb27e55f 100644
--- a/sys/arch/sgi/conf/GENERIC-IP27
+++ b/sys/arch/sgi/conf/GENERIC-IP27
@@ -1,4 +1,4 @@
-#	$OpenBSD: GENERIC-IP27,v 1.29 2010/02/01 22:06:27 jasper Exp $
+#	$OpenBSD: GENERIC-IP27,v 1.30 2010/03/04 14:50:35 jsing Exp $
 #
 # THIS KERNEL IS FOR Origin, Onyx, Fuel, Tezro (IP27, IP35) SYSTEMS ONLY.
 #
@@ -47,6 +47,8 @@ xbow*		at mainbus0
 xbridge*	at xbow?
 xbpci*		at xbridge?
 pci*		at xbpci?
+odyssey*	at xbow?
+wsdisplay*	at odyssey?
 
 # IOC3
 ioc*		at pci?
diff --git a/sys/arch/sgi/conf/GENERIC-IP30 b/sys/arch/sgi/conf/GENERIC-IP30
index fc0d763c3e3..34c1c7da3b8 100644
--- a/sys/arch/sgi/conf/GENERIC-IP30
+++ b/sys/arch/sgi/conf/GENERIC-IP30
@@ -1,4 +1,4 @@
-#	$OpenBSD: GENERIC-IP30,v 1.24 2010/02/01 22:06:27 jasper Exp $
+#	$OpenBSD: GENERIC-IP30,v 1.25 2010/03/04 14:50:35 jsing Exp $
 #
 # THIS KERNEL IS FOR Octane and Octane 2 (IP30) SYSTEMS ONLY.
 #
@@ -50,6 +50,8 @@ onewire*	at xheart?
 xbridge*	at xbow?
 xbpci*		at xbridge?
 pci*		at xbpci?
+odyssey*	at xbow?
+wsdisplay*	at odyssey?
 
 # IOC3
 ioc*		at pci?
diff --git a/sys/arch/sgi/xbow/files.xbow b/sys/arch/sgi/xbow/files.xbow
index 7287b097dfa..fb6d8d13590 100644
--- a/sys/arch/sgi/xbow/files.xbow
+++ b/sys/arch/sgi/xbow/files.xbow
@@ -1,4 +1,4 @@
-#	$OpenBSD: files.xbow,v 1.5 2009/10/22 19:55:45 miod Exp $
+#	$OpenBSD: files.xbow,v 1.6 2010/03/04 14:50:35 jsing Exp $
 
 # IP30 and IP27 planar XBow bus
 define	xbow {[widget = -1], [vendor = -1], [product = -1]}
@@ -17,3 +17,9 @@ attach	xbridge at xbow
 device	xbpci {[bus = -1]} : pcibus
 attach	xbpci at xbridge
 file	arch/sgi/xbow/xbridge.c			xbridge
+
+# Odyssey graphics
+device	odyssey: wsemuldisplaydev, rasops8, rasops16, rasops32
+attach	odyssey at xbow
+file	arch/sgi/xbow/odyssey.c			odyssey		needs-flag
+
diff --git a/sys/arch/sgi/xbow/odyssey.c b/sys/arch/sgi/xbow/odyssey.c
new file mode 100644
index 00000000000..b7cc082de55
--- /dev/null
+++ b/sys/arch/sgi/xbow/odyssey.c
@@ -0,0 +1,1048 @@
+/*	$OpenBSD: odyssey.c,v 1.1 2010/03/04 14:50:35 jsing Exp $ */
+/*
+ * Copyright (c) 2009, 2010 Joel Sing <jsing@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/*
+ * Driver for the SGI VPro (aka Odyssey) Graphics Card.
+ */
+
+/*
+ * The details regarding the design and operation of this hardware, along with
+ * the necessary magic numbers, are only available thanks to the reverse
+ * engineering work undertaken by Stanislaw Skowronek <skylark@linux-mips.org>. 
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/device.h>
+#include <sys/types.h>
+#include <sys/malloc.h>
+
+#include <machine/autoconf.h>
+
+#include <mips64/arcbios.h>
+
+#include <sgi/xbow/xbow.h>
+#include <sgi/xbow/xbowdevs.h>
+#include <sgi/xbow/odysseyreg.h>
+
+#include <dev/wscons/wsconsio.h>
+#include <dev/wscons/wsdisplayvar.h>
+#include <dev/rasops/rasops.h>
+
+/*
+ * Colourmap data.
+ */
+struct  odyssey_cmap {
+	u_int8_t cm_red[256];
+	u_int8_t cm_green[256];
+	u_int8_t cm_blue[256];
+};
+
+/*
+ * Screen data.
+ */
+struct odyssey_screen {
+	struct device *sc;		/* Back pointer. */
+
+	struct rasops_info ri;		/* Screen raster display info. */
+	struct odyssey_cmap cmap;	/* Display colour map. */
+	long attr;			/* Rasops attributes. */
+
+	int width;			/* Width in pixels. */
+	int height;			/* Height in pixels. */
+	int depth;			/* Colour depth in bits. */
+	int linebytes;			/* Bytes per line. */
+	int ro_curpos;			/* Current position in rasops tile. */
+};
+
+struct odyssey_softc {
+	struct device		sc_dev;
+
+	struct mips_bus_space	iot_store;
+	bus_space_tag_t		iot;
+	bus_space_handle_t	ioh;
+
+	int console;				/* Is this the console? */
+	int screens;				/* No of screens allocated. */
+
+	struct odyssey_screen	*curscr;	/* Current screen. */
+};
+
+int	odyssey_match(struct device *, void *, void *);
+void	odyssey_attach(struct device *, struct device *, void *);
+
+void	odyssey_cmd_wait(struct odyssey_softc *);
+void	odyssey_data_wait(struct odyssey_softc *);
+void	odyssey_cmd_flush(struct odyssey_softc *, int);
+
+void	odyssey_setup(struct odyssey_softc *);
+void	odyssey_init_screen(struct odyssey_screen *);
+
+/*
+ * Colour map handling for indexed modes.
+ */
+int	odyssey_getcmap(struct odyssey_cmap *, struct wsdisplay_cmap *);
+int	odyssey_putcmap(struct odyssey_cmap *, struct wsdisplay_cmap *);
+
+/*
+ * Hardware acceleration for rasops.
+ */
+void	odyssey_rop(struct odyssey_softc *, int, int, int, int, int, int);
+void	odyssey_copyrect(struct odyssey_softc *, int, int, int, int, int, int);
+void	odyssey_fillrect(struct odyssey_softc *, int, int, int, int, u_int);
+int	odyssey_do_cursor(struct rasops_info *);
+int	odyssey_putchar(void *, int, int, u_int, long);
+int	odyssey_copycols(void *, int, int, int, int);
+int	odyssey_erasecols(void *, int, int, int, long);
+int	odyssey_copyrows(void *, int, int, int);
+int	odyssey_eraserows(void *, int, int, long);
+
+u_int32_t ieee754_sp(int32_t);
+
+/* 
+ * Interfaces for wscons.
+ */
+int 	odyssey_ioctl(void *, u_long, caddr_t, int, struct proc *);
+paddr_t odyssey_mmap(void *, off_t, int);
+int	odyssey_alloc_screen(void *, const struct wsscreen_descr *, void **,
+	    int *, int *, long *);
+void	odyssey_free_screen(void *, void *);
+int	odyssey_show_screen(void *, void *, int, void (*)(void *, int, int),
+	    void *);
+void	odyssey_burner(void *, u_int, u_int);
+
+struct wsscreen_descr odyssey_stdscreen = {
+	"std",			/* Screen name. */
+};
+
+struct wsdisplay_accessops odyssey_accessops = {
+	odyssey_ioctl,
+	odyssey_mmap,
+	odyssey_alloc_screen,
+	odyssey_free_screen,
+	odyssey_show_screen,
+	NULL,			/* load_font */
+	NULL,			/* scrollback */
+	NULL,			/* getchar */
+	odyssey_burner,
+	NULL			/* pollc */
+};
+
+const struct wsscreen_descr *odyssey_scrlist[] = {
+	&odyssey_stdscreen
+};
+
+struct wsscreen_list odyssey_screenlist = {
+	nitems(odyssey_scrlist), odyssey_scrlist
+};
+
+const struct cfattach odyssey_ca = {
+	sizeof(struct odyssey_softc), odyssey_match, odyssey_attach,
+};
+
+struct cfdriver odyssey_cd = {
+	NULL, "odyssey", DV_DULL,
+};
+
+int
+odyssey_match(struct device *parent, void *match, void *aux)
+{
+	struct xbow_attach_args *xaa = aux;
+
+	if (xaa->xaa_vendor == XBOW_VENDOR_SGI2 &&
+	    xaa->xaa_product == XBOW_PRODUCT_SGI2_ODYSSEY)
+		return 1;
+
+	return 0;
+}
+
+void
+odyssey_attach(struct device *parent, struct device *self, void *aux)
+{
+	struct xbow_attach_args *xaa = aux;
+	struct wsemuldisplaydev_attach_args waa;
+	struct odyssey_softc *sc = (void *)self;
+	struct odyssey_screen *screen;
+
+	if (strncmp(bios_graphics, "alive", 5) != 0) {
+		printf(" device has not been setup by firmware!\n");
+		return;
+	}
+
+	printf(" revision %d\n", xaa->xaa_revision);
+
+	/*
+	 * Create a copy of the bus space tag.
+	 */
+	bcopy(xaa->xaa_iot, &sc->iot_store, sizeof(struct mips_bus_space));
+	sc->iot = &sc->iot_store;
+
+	/*
+	 * Setup screen data.
+	 */
+	sc->curscr = malloc(sizeof(struct odyssey_screen), M_DEVBUF, M_NOWAIT);
+	if (sc->curscr == NULL) {
+		printf("failed to allocate screen memory!\n");
+		return;
+	}
+	sc->curscr->sc = (void *)sc;
+	screen = sc->curscr;
+
+	/* Setup bus space mappings. */
+	if (bus_space_map(sc->iot, ODYSSEY_REG_OFFSET, ODYSSEY_REG_SIZE,
+	    BUS_SPACE_MAP_LINEAR, &sc->ioh)) {
+		printf("failed to map framebuffer bus space!\n");
+		return;
+	}
+
+	/* Setup hardware and clear screen. */
+	odyssey_setup(sc);
+	odyssey_fillrect(sc, 0, 0, 1280, 1024, 0x000000);
+	odyssey_cmd_flush(sc, 0);
+
+	/* Set screen defaults. */
+	screen->width = 1280;
+	screen->height = 1024;
+	screen->depth = 32;
+	screen->linebytes = screen->width * screen->depth / 8;
+
+	odyssey_init_screen(screen);
+
+	waa.console = sc->console;
+	waa.scrdata = &odyssey_screenlist;
+	waa.accessops = &odyssey_accessops;
+	waa.accesscookie = screen;
+	config_found(self, &waa, wsemuldisplaydevprint);
+}
+
+void
+odyssey_init_screen(struct odyssey_screen *screen)
+{
+	u_char *colour;
+	int i;
+
+	/*
+	 * Initialise screen.
+	 */
+
+	/* Initialise rasops. */
+	memset(&screen->ri, 0, sizeof(struct rasops_info));
+
+	screen->ri.ri_flg = RI_CENTER;
+	screen->ri.ri_depth = screen->depth;
+	screen->ri.ri_width = screen->width;
+	screen->ri.ri_height = screen->height;
+	screen->ri.ri_stride = screen->linebytes;
+
+	if (screen->depth == 32) {
+		screen->ri.ri_bpos = 16;
+		screen->ri.ri_bnum = 8;
+		screen->ri.ri_gpos = 8;
+		screen->ri.ri_gnum = 8;
+		screen->ri.ri_rpos = 0;
+		screen->ri.ri_rnum = 8;
+	} else if (screen->depth == 16) {
+		screen->ri.ri_rpos = 10;
+		screen->ri.ri_rnum = 5;
+		screen->ri.ri_gpos = 5;
+		screen->ri.ri_gnum = 5;
+		screen->ri.ri_bpos = 0;
+		screen->ri.ri_bnum = 5;
+	}
+
+	rasops_init(&screen->ri, screen->height / 8, screen->width / 8);
+
+	/*
+	 * Initialise colourmap, if required.
+	 */
+	if (screen->depth == 8) {
+		for (i = 0; i < 16; i++) {
+			colour = (u_char *)&rasops_cmap[i * 3];
+			screen->cmap.cm_red[i] = colour[0];
+			screen->cmap.cm_green[i] = colour[1];
+			screen->cmap.cm_blue[i] = colour[2];
+		}
+		for (i = 240; i < 256; i++) {
+			colour = (u_char *)&rasops_cmap[i * 3];
+			screen->cmap.cm_red[i] = colour[0];
+			screen->cmap.cm_green[i] = colour[1];
+			screen->cmap.cm_blue[i] = colour[2];
+		}
+	}
+
+	screen->ri.ri_hw = screen->sc;
+
+	screen->ri.ri_ops.putchar = odyssey_putchar;
+	screen->ri.ri_do_cursor = odyssey_do_cursor;
+	screen->ri.ri_ops.copyrows = odyssey_copyrows;
+	screen->ri.ri_ops.copycols = odyssey_copycols;
+	screen->ri.ri_ops.eraserows = odyssey_eraserows;
+	screen->ri.ri_ops.erasecols = odyssey_erasecols;
+
+	odyssey_stdscreen.ncols = screen->ri.ri_cols;
+	odyssey_stdscreen.nrows = screen->ri.ri_rows;
+	odyssey_stdscreen.textops = &screen->ri.ri_ops;
+	odyssey_stdscreen.fontwidth = screen->ri.ri_font->fontwidth;
+	odyssey_stdscreen.fontheight = screen->ri.ri_font->fontheight;
+	odyssey_stdscreen.capabilities = screen->ri.ri_caps;
+}
+
+/*
+ * Hardware initialisation.
+ */
+void
+odyssey_setup(struct odyssey_softc *sc)
+{
+	u_int64_t val;
+	int i;
+
+	/* Initialise Buzz Graphics Engine. */
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x20008003);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x21008010);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x22008000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x23008002);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x2400800c);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x2500800e);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x27008000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x28008000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x290080d6);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x2a0080e0);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x2c0080ea);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x2e008380);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x2f008000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x30008000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x31008000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x32008000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x33008000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x34008000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x35008000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x310081e0);
+	odyssey_cmd_flush(sc, 0);
+
+	/* Initialise Buzz X-Form. */
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x9080bda2);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x3f800000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x3f000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0xbf800000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x4e000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x40400000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x4e000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x4d000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x34008000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x9080bdc8);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x3f800000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x3f000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x3f800000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x3f000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x3f800000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x3f800000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x34008010);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x908091df);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x3f800000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x34008000);
+	odyssey_cmd_flush(sc, 0);
+
+	/* Initialise Buzz Raster. */
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x0001203b);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00001000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00001000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00001000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00001000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x0001084a);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000080);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000080);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00010845);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x000000ff);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x000076ff);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x0001141b);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000001);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00011c16);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x03000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00010404);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00011023);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00ff0ff0);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00ff0ff0);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x000000ff);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00011017);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00002000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000050);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x20004950);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x0001204b);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x004ff3ff);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00ffffff);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00ffffff);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00ffffff);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	odyssey_cmd_flush(sc, 0);
+
+	/*
+	 * Initalise Pixel Blaster & Jammer.
+	 */
+	for (i = 0; i < 32; i++) {
+		if ((i & 0xf) == 0)
+			odyssey_data_wait(sc);
+
+		bus_space_write_8(sc->iot, sc->ioh, ODYSSEY_DATA_FIFO,
+		    ((0x30000001ULL | ((0x2900 + i) << 14)) << 32) |
+		    0x905215a6);
+	}
+
+	odyssey_data_wait(sc);
+	bus_space_write_8(sc->iot, sc->ioh, ODYSSEY_DATA_FIFO,
+	    ((0x30000001ULL | (0x2581 << 14)) << 32) | 0x0);
+
+	/* Gamma ramp. */
+	for (i = 0; i < 0x600; i++) {
+		if ((i & 0xf) == 0)
+			odyssey_data_wait(sc);
+
+		if (i < 0x200)
+			val = i >> 2;
+		else if (i < 0x300)
+			val = ((i - 0x200) >> 1) + 0x80;
+		else
+			val = ((i - 0x300) >> 1) + 0x100;
+
+		val = (val << 20) | (val << 10) | val;
+
+		bus_space_write_8(sc->iot, sc->ioh, ODYSSEY_DATA_FIFO,
+		    ((0x30000001ULL | ((0x1a00 + i) << 14)) << 32) | val);
+	}
+}
+
+void
+odyssey_cmd_wait(struct odyssey_softc *sc)
+{
+	u_int32_t val, timeout = 1000000;
+
+	val = bus_space_read_4(sc->iot, sc->ioh, ODYSSEY_STATUS);
+	while ((val & ODYSSEY_STATUS_CMD_FIFO_LOW) == 0) {
+		delay(1);
+		if (--timeout == 0) {
+			printf("odyssey: timeout waiting for command fifo!\n");
+			return;
+		}
+		val = bus_space_read_4(sc->iot, sc->ioh, ODYSSEY_STATUS);
+	}
+}
+
+void
+odyssey_data_wait(struct odyssey_softc *sc)
+{
+	u_int32_t val, timeout = 1000000;
+
+	val = bus_space_read_4(sc->iot, sc->ioh, ODYSSEY_DBE_STATUS);
+	while ((val & 0x7f) > 0) {
+		delay(1);
+		if (--timeout == 0) {
+			printf("odyssey: timeout waiting for data fifo!\n");
+			return;
+		}
+		val = bus_space_read_4(sc->iot, sc->ioh, ODYSSEY_DBE_STATUS);
+	}
+}
+
+void
+odyssey_cmd_flush(struct odyssey_softc *sc, int quick)
+{
+
+	odyssey_cmd_wait(sc);
+
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00010443);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x000000fa);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00010046);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00010046);
+
+	if (quick)
+		return;
+
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00010019);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00010443);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000096);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00010046);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00010046);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00010046);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00010046);
+
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00010443);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x000000fa);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00010046);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00010046);
+}
+
+/*
+ * Interfaces for wscons.
+ */
+
+int
+odyssey_ioctl(void *v, u_long cmd, caddr_t data, int flags, struct proc *p)
+{
+	struct odyssey_screen *screen = (struct odyssey_screen *)v;
+	int rc;
+
+	switch (cmd) {
+	case WSDISPLAYIO_GTYPE:
+		*(u_int *)data = WSDISPLAY_TYPE_ODYSSEY;
+		break;
+
+	case WSDISPLAYIO_GINFO:
+	{
+		struct wsdisplay_fbinfo *fb = (struct wsdisplay_fbinfo *)data;
+
+		fb->height = screen->height;
+		fb->width = screen->width;
+		fb->depth = screen->depth;
+		fb->cmsize = screen->depth == 8 ? 256 : 0;
+	}
+		break;
+
+	case WSDISPLAYIO_LINEBYTES:
+		*(u_int *)data = screen->linebytes;
+		break;
+
+	case WSDISPLAYIO_GETCMAP:
+		if (screen->depth == 8) {
+			struct wsdisplay_cmap *cm =
+			    (struct wsdisplay_cmap *)data;
+
+			rc = odyssey_getcmap(&screen->cmap, cm);
+			if (rc != 0)
+				return (rc);
+		}
+		break;
+
+	case WSDISPLAYIO_PUTCMAP:
+		if (screen->depth == 8) {
+			struct wsdisplay_cmap *cm =
+			    (struct wsdisplay_cmap *)data;
+
+			rc = odyssey_putcmap(&screen->cmap, cm);
+			if (rc != 0)
+				return (rc);
+		}
+		break;
+
+	case WSDISPLAYIO_GVIDEO:
+	case WSDISPLAYIO_SVIDEO:
+		/* Handled by the upper layer. */
+		break;
+
+	default:
+		return (-1);
+	}
+
+	return (0);
+}
+
+int
+odyssey_getcmap(struct odyssey_cmap *cm, struct wsdisplay_cmap *rcm)
+{
+	u_int index = rcm->index, count = rcm->count;
+	int rc;
+
+	if (index >= 256 || count > 256 - index)
+		return (EINVAL);
+
+	if ((rc = copyout(&cm->cm_red[index], rcm->red, count)) != 0)
+		return (rc);
+	if ((rc = copyout(&cm->cm_green[index], rcm->green, count)) != 0)
+		return (rc);
+	if ((rc = copyout(&cm->cm_blue[index], rcm->blue, count)) != 0)
+		return (rc);
+
+	return (0);
+}
+
+int
+odyssey_putcmap(struct odyssey_cmap *cm, struct wsdisplay_cmap *rcm)
+{
+	u_int index = rcm->index, count = rcm->count;
+	int rc;
+
+	if (index >= 256 || count > 256 - index)
+		return (EINVAL);
+
+	if ((rc = copyin(rcm->red, &cm->cm_red[index], count)) != 0)
+		return (rc);
+	if ((rc = copyin(rcm->green, &cm->cm_green[index], count)) != 0)
+		return (rc);
+	if ((rc = copyin(rcm->blue, &cm->cm_blue[index], count)) != 0)
+		return (rc);
+
+	return (0);
+}
+
+paddr_t
+odyssey_mmap(void *v, off_t offset, int protection)
+{
+	return (-1);
+}
+
+int
+odyssey_alloc_screen(void *v, const struct wsscreen_descr *type,
+    void **cookiep, int *curxp, int *curyp, long *attrp)
+{
+	struct odyssey_screen *screen = (struct odyssey_screen *)v;
+	struct odyssey_softc *sc = (struct odyssey_softc *)screen->sc;
+
+	/* We do not allow multiple consoles at the moment. */
+	if (sc->screens > 0)
+		return (ENOMEM);
+
+	sc->screens++;
+
+	/* Return rasops_info via cookie. */
+	*cookiep = &screen->ri;
+
+	/* Move cursor to top left of screen. */
+	*curxp = 0;
+	*curyp = 0;
+
+	/* Correct screen attributes. */
+	screen->ri.ri_ops.alloc_attr(&screen->ri, 0, 0, 0, attrp);
+	screen->attr = *attrp;
+
+	return (0);
+}
+
+void
+odyssey_free_screen(void *v, void *cookie)
+{
+	/* We do not allow multiple consoles at the moment. */
+}
+
+int
+odyssey_show_screen(void *v, void *cookie, int waitok,
+    void (*cb)(void *, int, int), void *cbarg)
+{
+	/* We do not allow multiple consoles at the moment. */
+	return (0);
+}
+
+void
+odyssey_burner(void *v, u_int on, u_int flags)
+{
+}
+
+/*
+ * Hardware accelerated functions.
+ */
+
+void
+odyssey_rop(struct odyssey_softc *sc, int x, int y, int w, int h, int op, int c)
+{
+	/* Setup raster operation. */
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00010404);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00100000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, OPENGL_LOGIC_OP);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, op);
+	odyssey_cmd_flush(sc, 1);
+
+	odyssey_fillrect(sc, x, y, w, h, c);
+
+	/* Return to copy mode. */
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00010404);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00100000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, OPENGL_LOGIC_OP);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO,
+	    OPENGL_LOGIC_OP_COPY);
+	odyssey_cmd_flush(sc, 1);
+}
+
+void
+odyssey_copyrect(struct odyssey_softc *sc, int sx, int sy, int dx, int dy,
+    int w, int h)
+{
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00010658);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00120000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00002031);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00002000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, sx | (sy << 16));
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x80502050);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, w | (h << 16));
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x82223042);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00002000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, dx | (dy << 16));
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x3222204b);
+
+	odyssey_cmd_flush(sc, 1);
+}
+
+void
+odyssey_fillrect(struct odyssey_softc *sc, int x, int y, int w, int h, u_int c)
+{
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, OPENGL_BEGIN);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, OPENGL_QUADS);
+
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, OPENGL_COLOR_3UB);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, c & 0xff);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, (c >> 8) & 0xff);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, (c >> 16) & 0xff);
+
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, OPENGL_VERTEX_2I);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, x);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, y);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, OPENGL_VERTEX_2I);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, x + w);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, y);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, OPENGL_VERTEX_2I);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, x + w);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, y + h);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, OPENGL_VERTEX_2I);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, x);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, y + h);
+
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, OPENGL_END);
+
+	odyssey_cmd_flush(sc, 1);
+}
+
+int
+odyssey_do_cursor(struct rasops_info *ri)
+{
+	struct odyssey_softc *sc = ri->ri_hw;
+	struct odyssey_screen *screen = sc->curscr;
+	int y, x, w, h, fg, bg;
+
+	w = ri->ri_font->fontwidth;
+	h = ri->ri_font->fontheight;
+	x = ri->ri_xorigin + ri->ri_ccol * w;
+	y = ri->ri_yorigin + ri->ri_crow * h;
+
+	ri->ri_ops.unpack_attr(ri, screen->attr, &fg, &bg, NULL);
+
+	odyssey_rop(sc, x, y, w, h, OPENGL_LOGIC_OP_XOR, ri->ri_devcmap[fg]);
+	odyssey_cmd_flush(sc, 0);
+
+	return 0;
+}
+
+int
+odyssey_putchar(void *cookie, int row, int col, u_int uc, long attr)
+{
+	struct rasops_info *ri = cookie;
+	struct odyssey_softc *sc = ri->ri_hw;
+	struct wsdisplay_font *font = ri->ri_font;
+	int x, y, w, h, bg, fg, ul, i, j, ci, l;
+	u_int8_t *fontbitmap;
+	u_int chunk;
+
+	w = ri->ri_font->fontwidth;
+	h = ri->ri_font->fontheight;
+	x = ri->ri_xorigin + col * w;
+	y = ri->ri_yorigin + row * h;
+
+	fontbitmap = (u_int8_t *)(font->data + (uc - font->firstchar) *
+	    ri->ri_fontscale);
+	ri->ri_ops.unpack_attr(ri, attr, &fg, &bg, &ul);
+
+	/* Handle spaces with a single fillrect. */
+	if (uc == ' ') {
+		odyssey_fillrect(sc, x, y, w, h, ri->ri_devcmap[bg]);
+		odyssey_cmd_flush(sc, 0);
+		return 0;
+	}
+
+	odyssey_fillrect(sc, x, y, w, h, 0xff0000);
+
+	/* Setup pixel painting. */
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00010405);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00002400);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0xc580cc08);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00011453);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000002);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	odyssey_cmd_flush(sc, 0);
+
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x2900812f);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00014400);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x0000000a);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0xcf80a92f);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, ieee754_sp(x));
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, ieee754_sp(y));
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO,
+	    ieee754_sp(x + font->fontwidth));
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO,
+	    ieee754_sp(y + font->fontheight));
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x8080c800);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00004570);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x0f00104c);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000071);
+
+	for (i = font->fontheight; i != 0; i--) {
+
+		/* Get bitmap for current line. */
+		if (font->fontwidth <= 8)
+			chunk = *fontbitmap;
+		else
+			chunk = *(u_int16_t *)fontbitmap;
+		fontbitmap += font->stride;
+
+		/* Handle underline. */
+		if (ul && i == 1)
+			chunk = 0xffff;
+
+		/* Draw character. */
+		bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO,
+		    0x00004570);
+		bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO,
+		    0x0fd1104c);
+		bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO,
+		    0x00000071);
+
+		w = font->fontwidth;
+		l = 0;
+
+		for (j = 0; j < font->fontwidth; j++) {
+
+			if (l == 0) {
+
+				l = (w > 14 ? 14 : w);
+				w -= 14;
+
+				/* Number of pixels. */
+				bus_space_write_4(sc->iot, sc->ioh,
+				    ODYSSEY_CMD_FIFO, (0x00014011 |
+				    (l << 10)));
+
+			}
+		
+			if (font->fontwidth > 8)
+				ci = (chunk & (1 << (16 - j)) ? fg : bg);
+			else
+				ci = (chunk & (1 << (8 - j)) ? fg : bg);
+
+			bus_space_write_4(sc->iot, sc->ioh,
+			    ODYSSEY_CMD_FIFO, ri->ri_devcmap[ci]);
+			
+			l--;
+		}
+	}
+
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00014001);
+	odyssey_cmd_flush(sc, 1);
+
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x290080d6);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00011453);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00000000);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00010405);
+	bus_space_write_4(sc->iot, sc->ioh, ODYSSEY_CMD_FIFO, 0x00002000);
+	odyssey_cmd_flush(sc, 0);
+
+	return 0;
+}
+
+int
+odyssey_copycols(void *cookie, int row, int src, int dst, int num)
+{
+	struct rasops_info *ri = cookie;
+	struct odyssey_softc *sc = ri->ri_hw;
+	int i;
+
+	if (src < dst) {
+
+		/* We cannot control copy direction, so copy col by col. */
+		for (i = num - 1; i >= 0; i--)
+			odyssey_copyrect(sc,
+			    ri->ri_xorigin + (src + i) * ri->ri_font->fontwidth,
+			    ri->ri_yorigin + row * ri->ri_font->fontheight,
+			    ri->ri_xorigin + (dst + i) * ri->ri_font->fontwidth,
+			    ri->ri_yorigin + row * ri->ri_font->fontheight,
+			    ri->ri_font->fontwidth, ri->ri_font->fontheight);
+
+	} else {
+
+		odyssey_copyrect(sc,
+		    ri->ri_xorigin + src * ri->ri_font->fontwidth,
+		    ri->ri_yorigin + row * ri->ri_font->fontheight,
+		    ri->ri_xorigin + dst * ri->ri_font->fontwidth,
+		    ri->ri_yorigin + row * ri->ri_font->fontheight,
+		    num * ri->ri_font->fontwidth, ri->ri_font->fontheight);
+
+	}
+
+	odyssey_cmd_flush(sc, 0);
+
+	return 0;
+}
+
+int
+odyssey_erasecols(void *cookie, int row, int col, int num, long attr)
+{
+	struct rasops_info *ri = cookie;
+	struct odyssey_softc *sc = ri->ri_hw;
+	int bg, fg;
+
+	ri->ri_ops.unpack_attr(cookie, attr, &fg, &bg, NULL);
+
+	row *= ri->ri_font->fontheight;
+	col *= ri->ri_font->fontwidth;
+	num *= ri->ri_font->fontwidth;
+
+	odyssey_fillrect(sc, ri->ri_xorigin + col, ri->ri_yorigin + row,
+	    num, ri->ri_font->fontheight, ri->ri_devcmap[bg]);
+	odyssey_cmd_flush(sc, 0);
+
+	return 0;
+}
+
+int
+odyssey_copyrows(void *cookie, int src, int dst, int num)
+{
+	struct rasops_info *ri = cookie;
+	struct odyssey_softc *sc = ri->ri_hw;
+	int i;
+
+	if (src < dst) {
+
+		/* We cannot control copy direction, so copy row by row. */
+		for (i = num - 1; i >= 0; i--)
+			odyssey_copyrect(sc, ri->ri_xorigin, ri->ri_yorigin +
+			    (src + i) * ri->ri_font->fontheight,
+			    ri->ri_xorigin, ri->ri_yorigin +
+			    (dst + i) * ri->ri_font->fontheight,
+			    ri->ri_emuwidth, ri->ri_font->fontheight);
+
+	} else {
+
+		odyssey_copyrect(sc, ri->ri_xorigin,
+		    ri->ri_yorigin + src * ri->ri_font->fontheight,
+		    ri->ri_xorigin,
+		    ri->ri_yorigin + dst * ri->ri_font->fontheight,
+		    ri->ri_emuwidth, num * ri->ri_font->fontheight);
+
+	}
+
+	odyssey_cmd_flush(sc, 0);
+
+	return 0;
+}
+
+int
+odyssey_eraserows(void *cookie, int row, int num, long attr)
+{
+	struct rasops_info *ri = cookie;
+	struct odyssey_softc *sc = ri->ri_hw;
+	int x, y, w, bg, fg;
+
+	ri->ri_ops.unpack_attr(cookie, attr, &fg, &bg, NULL);
+
+	if ((num == ri->ri_rows) && ISSET(ri->ri_flg, RI_FULLCLEAR)) {
+		num = ri->ri_height;
+		x = y = 0;
+		w = ri->ri_width;
+	} else {
+		num *= ri->ri_font->fontheight;
+		x = ri->ri_xorigin;
+		y = ri->ri_yorigin + row * ri->ri_font->fontheight;
+		w = ri->ri_emuwidth;
+	}
+
+	odyssey_fillrect(sc, x, y, w, num, ri->ri_devcmap[bg]);
+	odyssey_cmd_flush(sc, 0);
+
+	return 0;
+}
+
+u_int32_t
+ieee754_sp(int32_t v)
+{
+	u_int8_t exp = 0, sign = 0;
+	int i = 32;
+
+	/*
+	 * Convert an integer to IEEE754 single precision floating point:
+	 *
+	 * 	Sign - 1 bit
+	 * 	Exponent - 8 bits (with 2^(8-1)-1 = 127 bias)
+	 * 	Fraction - 23 bits
+	 */
+
+	if (v < 0) {
+		sign = 1;
+		v = -v;
+	}
+
+	/* Determine shift for fraction. */
+	while (i && (v & (1 << --i)) == 0);
+
+	if (v != 0)
+		exp = 127 + i;
+
+	return (sign << 31) | (exp << 23) | ((v << (23 - i)) & 0x7fffff);
+}
diff --git a/sys/arch/sgi/xbow/odysseyreg.h b/sys/arch/sgi/xbow/odysseyreg.h
new file mode 100644
index 00000000000..5464cb2efaf
--- /dev/null
+++ b/sys/arch/sgi/xbow/odysseyreg.h
@@ -0,0 +1,62 @@
+/*	$OpenBSD: odysseyreg.h,v 1.1 2010/03/04 14:50:35 jsing Exp $ */
+/*
+ * Copyright (c) 2009, 2010 Joel Sing <jsing@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/*
+ * Register details for the SGI VPro (aka Odyssey) Graphics Card.
+ */
+
+#define	ODYSSEY_REG_OFFSET		0x00000000
+#define	ODYSSEY_REG_SIZE		0x00410000
+
+#define ODYSSEY_STATUS			0x00001064
+#define  ODYSSEY_STATUS_CMD_FIFO_HIGH	0x00008000
+#define  ODYSSEY_STATUS_CMD_FIFO_LOW	0x00020000
+#define ODYSSEY_DBE_STATUS		0x0000106c
+
+#define ODYSSEY_CMD_FIFO		0x00110000
+#define ODYSSEY_DATA_FIFO		0x00400000
+
+/*
+ * OpenGL Commands.
+ */
+
+#define OPENGL_BEGIN			0x00014400
+#define OPENGL_END			0x00014001
+#define OPENGL_LOGIC_OP			0x00010422
+#define OPENGL_VERTEX_2I		0x8080c800
+#define OPENGL_COLOR_3UB		0xc580cc08
+
+#define OPENGL_QUADS			0x00000007
+
+/* Logic Operations. */
+#define OPENGL_LOGIC_OP_CLEAR		0
+#define OPENGL_LOGIC_OP_AND		1
+#define OPENGL_LOGIC_OP_AND_REVERSE	2
+#define OPENGL_LOGIC_OP_COPY		3
+#define OPENGL_LOGIC_OP_AND_INVERTED	4
+#define OPENGL_LOGIC_OP_NOOP		5
+#define OPENGL_LOGIC_OP_XOR		6
+#define OPENGL_LOGIC_OP_OR		7
+#define OPENGL_LOGIC_OP_NOR		8
+#define OPENGL_LOGIC_OP_EQUIV		9
+#define OPENGL_LOGIC_OP_INVERT		10
+#define OPENGL_LOGIC_OP_OR_REVERSE	11
+#define OPENGL_LOGIC_OP_COPY_INVERTED	12
+#define OPENGL_LOGIC_OP_OR_INVERTED	13
+#define OPENGL_LOGIC_OP_NAND		14
+#define OPENGL_LOGIC_OP_SET		15
+