initial import of NetBSD tree

1 files changed, 927 insertions, 0 deletions

diff --git a/sys/arch/amiga/dev/grf_ul.c b/sys/arch/amiga/dev/grf_ul.c
new file mode 100644
index 00000000000..1ca64fdf12a
--- /dev/null
+++ b/sys/arch/amiga/dev/grf_ul.c
@@ -0,0 +1,927 @@
+/*	$NetBSD: grf_ul.c,v 1.7 1995/10/09 02:14:46 chopps Exp $	*/
+#define UL_DEBUG
+
+/*
+ * Copyright (c) 1995 Ignatios Souvatzis
+ * 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.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *      This product includes software developed by Lutz Vieweg.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission
+ *
+ * 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 "grful.h"
+#if NGRFUL > 0
+
+/* Graphics routines for the University of Lowell A2410 board, 
+   using the TMS34010 processor. */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/errno.h>
+#include <sys/ioctl.h>
+#include <sys/device.h>
+#include <sys/malloc.h>
+#include <sys/syslog.h>
+
+#include <machine/cpu.h>
+
+#include <amiga/amiga/device.h>
+#include <amiga/amiga/isr.h>
+#include <amiga/dev/zbusvar.h>
+#include <amiga/dev/grfioctl.h>
+#include <amiga/dev/grfvar.h>
+#include <amiga/dev/grf_ulreg.h>
+
+#include <grf_ultmscode.h>
+
+int ul_ioctl __P((struct grf_softc *, u_long, void *, dev_t));
+int ul_getcmap __P((struct grf_softc *, struct grf_colormap *, dev_t));
+int ul_putcmap __P((struct grf_softc *, struct grf_colormap *, dev_t));
+int ul_bitblt __P((struct grf_softc *, struct grf_bitblt *, dev_t));
+
+/*
+ * marked true early so that ulowell_cnprobe() can tell if we are alive. 
+ */
+int ulowell_inited;
+
+/* standard-palette definition */
+u_int8_t ul_std_palette[] = {
+	0,128,  0,128,   0,128,  0,128,  0,255,  0,255,   0,255,  0,255,
+	0,  0,128,128,   0,  0,128,128,  0,  0,255,255,   0,  0,255,255,
+	0,  0,  0,  0, 128,128,128,128,  0,  0,  0,  0, 255,255,255,255};
+
+u_int8_t ul_ovl_palette[] = {
+	128, 0, 0, 0,
+	128, 0, 0, 0, 
+	128, 0, 0, 0};
+
+struct grfvideo_mode ul_monitor_defs[] = {
+
+ 	/*
+	 * Horizontal values are given in TMS units, that is, for the 
+	 * A2410 board, units of 16 pixels. The ioctl multiplies (when 
+	 * exporting) or divides (when importing) them by 2 to conform to
+	 * the other grfs.
+	 *
+	 * XXX This should have been in units of pixels, IMHO. If you change 
+	 * this, you must also change amiga/stand/grfconfig/grfconfig.c, 
+	 * grf_{rt,rh,cl}.c and egsgrfconfig (the latter to generate the 
+	 * horizontal timings in units of pixels instead of 8 pixels.
+	 * You will also have to write warnings in BIG BOLD RED BLINKING 
+	 * LETTERS all over the docs, and still people will fry their monitors.
+	 *
+	 * btw, the _totals are always sync_start+1, to compute the frequencies
+	 * correctly. (see TMS34010 manual)
+	 */
+
+	/* 1024x768, 60Hz */
+	{1, "1024x768",   66667000, 1024, 768, 8, 
+		82, 18, 86, 12, 87, 794, 26, 797, 2, 798},
+
+	/* 864x648, 70Hz */
+	{2, "864x648",    50000000,  864, 648, 8,
+		61,  7, 65,  3, 66, 667, 19, 677, 4, 678},
+
+	/* 800x600, 60Hz */
+	{3, "800x600",    36000000,  800, 600, 8,
+		57,  7, 61,  3, 62, 619, 19, 629, 4, 630},
+
+	/* 640x400, 60 Hz, interlaced */
+	{4, "640x400I",   14318000,  640, 400, 8,
+		48,  8, 56,  3, 57, 239, 39, 262, 2, 240},
+
+	/* 1024x768, 65Hz interlaced, s.th. is strange */
+	{5, "1024x768?I", 44980000, 1024, 768, 8,
+		76, 12, 79,  3, 80, 512, 24, 533, 2, 534},
+
+	/* 1024x1024, 60Hz */
+	{6, "1024x1024", 80000000, 1024,1024, 8,
+		77, 13, 78,  5, 78,1051, 27,1054, 2,1055},
+
+	/* 736x480, 60 Hz */
+	{7, "736x480", 28636300, 736, 480, 8,
+		54,  8, 57,  3, 58, 503, 23, 514, 3, 515},
+};
+
+int ulowell_mon_max = sizeof (ul_monitor_defs)/sizeof (ul_monitor_defs[0]);
+
+/* option settable */
+#ifndef ULOWELL_OSC1
+#define ULOWELL_OSC1 36000000
+#endif
+
+#ifndef ULOWELL_OSC2
+#define ULOWELL_OSC2 66667000
+#endif
+
+#ifndef ULOWELL_DEFAULT_MON
+#define ULOWELL_DEFAULT_MON 1
+#endif
+
+/* patchable */
+int ulowell_default_mon = ULOWELL_DEFAULT_MON;
+int ulowell_default_gfx = ULOWELL_DEFAULT_MON;
+
+/* 
+ * yes, this should be per board. We don't pay service to multiple boards,
+ * anyway.
+ */
+
+u_long ulowell_clock[2] = { ULOWELL_OSC2, ULOWELL_OSC1 };
+    
+static struct grfvideo_mode *current_mon;
+
+/*
+ * We dont use ints at the moment, but will need this later to avoid
+ * busy_waiting in gsp_write, and we use it for spurious int warnings.
+ */
+
+static int 
+ulisr(gp)
+struct grf_softc *gp;
+{
+	struct gspregs *ba;
+	u_int16_t	thebits;
+
+	if (gp == NULL)
+		return 0;
+
+	ba = (struct gspregs *)gp->g_regkva;
+
+	if (ba == NULL)
+		return 0;
+
+	thebits = ba->ctrl;
+	if (thebits & INTOUT) {
+		log(LOG_INFO, "grf4: got interrupt, ctrl=0x%4x\n", thebits);
+		/* clear int */
+		ba->ctrl = thebits & ~INTOUT;
+		return 1;
+	} 
+	return 0;
+}
+
+/*
+ * used to query the ulowell board to see if its alive.
+ * for the moment, a NOP.
+ */
+int
+ulowell_alive(mdp)
+	struct grfvideo_mode *mdp;
+{
+	return 1;
+}
+
+/*
+ * Load the (mostly) ite support code and the default colormaps.
+ */
+static void
+ul_load_code(gp)
+	struct grf_softc *gp;
+{
+	struct grf_ul_softc *gup;
+	struct gspregs *ba;
+	struct grfinfo *gi;
+	struct grf_colormap gcm;
+	int i,j;
+
+	gup = (struct grf_ul_softc *)gp;
+	ba = (struct gspregs *)gp->g_regkva;
+	gi = &gp->g_display;
+
+	gi->gd_regaddr	= ztwopa((caddr_t)ba);
+	gi->gd_regsize	= sizeof(struct gspregs);
+	gi->gd_fbaddr	= NULL;
+	gi->gd_fbsize	= 0;
+	gi->gd_fbwidth	= 1024;
+	gi->gd_fbheight	= 1024;
+	gi->gd_colors	= 256;
+
+	ba->ctrl = (ba->ctrl & ~INCR) | (LBL|INCW);
+	ba->hstadrh = 0xC000;
+	ba->hstadrl = 0x0080;
+	ba->data = 0x0;		/* disable screen refresh and video output */
+	ba->data = 0xFFFC;	/* screen refresh base address */
+	ba->data = 0xFFFF;	/* no display int possible */
+	ba->data = 0x000C;	/* CAS before RAS refresh each 64 local clks */
+
+	ba->ctrl = (ba->ctrl & ~INCW) | LBL;
+	ba->hstadrh = 0xfe80;
+	ba->hstadrl = 0;
+	ba->data = 4;
+	ba->hstadrl = 0x20;
+	ba->data = 0xFF;	/* all color planes visible */
+
+	ba->hstadrl = 0;
+	ba->data = 5;
+	ba->hstadrl = 0x20;
+	ba->data = 0;		/* no color planes blinking */
+
+	ba->hstadrl = 0;
+	ba->data = 6;
+	ba->hstadrl = 0x20;
+	ba->data = gup->gus_ovslct = 0x43;
+	/* overlay visible, no overlay blinking, overlay color 0 transparent */
+
+	ba->hstadrl = 0;
+	ba->data = 7;
+	ba->hstadrl = 0x20;
+	ba->data = 0;		/* voodoo */
+	
+	/* clear overlay planes */
+	ba->ctrl |= INCW;
+	ba->hstadrh = 0xff80;
+	ba->hstadrl = 0x0000;
+	for (i=0xff80000; i< 0xffa0000; ++i) {
+		ba->data = 0;
+	}
+
+	/* download tms code */
+
+	ba->ctrl = LBL | INCW | NMI | NMIM | HLT | CF;
+
+	printf("\ndownloading TMS code");
+	i=0;
+	while ((j = tmscode[i++])) {
+		printf(".");
+		ba->hstadrh = tmscode[i++];
+		ba->hstadrl = tmscode[i++];
+		while (j-- > 0) {
+			ba->data = tmscode[i++];
+		}
+	}
+
+	/* font info was uploaded in ite_ul.c(ite_ulinit). */
+
+	/* unflush cache, unhalt cpu -> nmi starts to run */
+	ba->ctrl &= ~(HLT|CF);	
+
+#if 0
+	/* XXX load image palette with some initial values, slightly hacky */
+
+	ba->hstadrh = 0xfe80;
+	ba->hstadrl = 0x0000;
+	ba->ctrl |= INCW;
+	ba->data = 0;
+	ba->ctrl &= ~INCW;
+
+	for (i=0; i<16; ++i) {
+		ba->data = gup->gus_imcmap[i+  0] = ul_std_palette[i+ 0];
+		ba->data = gup->gus_imcmap[i+256] = ul_std_palette[i+16];
+		ba->data = gup->gus_imcmap[i+512] = ul_std_palette[i+32];
+	}
+
+	/* 
+	 * XXX load shadow overlay palette with what the TMS code will load 
+	 * into the real one some time after the TMS code is started above. 
+	 * This is a rude hack.
+	 */ 
+	bcopy(ul_ovl_palette, gup->gus_ovcmap, 3*4);
+#else
+	/* XXX This version will work for the overlay, if our queue codes 
+	 * initial conditions are set at load time (not start time).
+	 * It further assumes that ul_putcmap only uses the 
+	 * GRFIMDEV/GRFOVDEV bits of the dev parameter.
+	 */
+
+	gcm.index = 0;
+	gcm.count = 16;
+	gcm.red   = ul_std_palette +  0;
+	gcm.green = ul_std_palette + 16;
+	gcm.blue  = ul_std_palette + 32;
+	ul_putcmap(gp, &gcm, GRFIMDEV);
+
+	gcm.index = 0;
+	gcm.count = 4;
+	gcm.red   = ul_ovl_palette + 0;
+	gcm.green = ul_ovl_palette + 4;
+	gcm.blue  = ul_ovl_palette + 8;
+	ul_putcmap(gp, &gcm, GRFOVDEV);
+#endif
+
+}
+
+static int
+ul_load_mon(gp, md)
+	struct grf_softc *gp;
+	struct grfvideo_mode *md;
+{
+	struct grf_ul_softc *gup;
+	struct grfinfo *gi;
+	struct gspregs *ba;
+	u_int16_t buf[8];
+
+	gup = (struct grf_ul_softc *)gp;
+	gi = &gp->g_display;
+	ba = (struct gspregs *)gp->g_regkva;
+
+	gi->gd_dyn.gdi_fbx	= 0;
+	gi->gd_dyn.gdi_fby	= 0;
+	gi->gd_dyn.gdi_dwidth	= md->disp_width;
+	gi->gd_dyn.gdi_dheight	= md->disp_height;
+	gi->gd_dyn.gdi_dx	= 0;
+	gi->gd_dyn.gdi_dy	= 0;
+
+	ba->ctrl = (ba->ctrl & ~INCR) | (LBL|INCW);
+
+	ba->hstadrh = 0xC000;
+	ba->hstadrl = 0x0000;
+	ba->data = md->hsync_stop;
+	ba->data = md->hblank_stop;
+	ba->data = md->hblank_start;
+	ba->data = md->hsync_start;
+	ba->data = md->vsync_stop;
+	ba->data = md->vblank_stop;
+	ba->data = md->vblank_start;
+	ba->data = md->vsync_start;
+
+	ba->ctrl &= ~INCW;
+	ba->hstadrh = 0xFE90;
+	ba->hstadrl = 0x0000;
+
+	if (abs(md->pixel_clock - ulowell_clock[0]) >
+	    abs(md->pixel_clock - ulowell_clock[1])) {
+
+		ba->data = (ba->data & 0xFC) | 2 | 1;
+		md->pixel_clock = ulowell_clock[1];
+
+	} else {
+		ba->data = (ba->data & 0xFC) | 2 | 0;
+		md->pixel_clock = ulowell_clock[0];
+	}
+
+	ba->ctrl |= LBL|INCW;
+	ba->hstadrh = 0xC000;
+	ba->hstadrl = 0x0080;
+	ba->data = (md->vblank_start - md->vblank_stop == md->disp_height ?
+	    0xf020 : 0xb020);
+
+	/* I guess this should be in the yet unimplemented mode select ioctl */
+	/* Hm.. maybe not. We always put the console on overlay plane no 0. */
+	/* Anyway, this _IS_ called in the mode select ioctl. */
+
+	/* ite support code parameters: */
+	buf[0] = GCMD_MCHG;
+	buf[1] = md->disp_width;	/* display width */
+	buf[2] = md->disp_height;	/* display height */
+	buf[3] = 0;			/* LSW of frame buffer origin */
+	buf[4] = 0xFF80;		/* MSW of frame buffer origin */
+	buf[5] = gi->gd_fbwidth * 1;	/* frame buffer pitch */
+	buf[6] = 1;			/* frame buffer depth */
+	gsp_write(ba, buf, 7);
+
+	return(1);
+}
+
+int ul_mode __P((struct grf_softc *, int, void *, int , int));
+
+void grfulattach __P((struct device *, struct device *, void *));
+int grfulprint __P((void *, char *));
+int grfulmatch __P((struct device *, struct cfdata *, void *));
+ 
+struct cfdriver grfulcd = {
+	NULL, "grful", (cfmatch_t)grfulmatch, grfulattach, 
+	DV_DULL, sizeof(struct grf_ul_softc), NULL, 0 };
+
+/*
+ * only used in console init
+ */
+static struct cfdata *cfdata;
+
+/*
+ * we make sure to only init things once.  this is somewhat
+ * tricky regarding the console.
+ */
+int 
+grfulmatch(pdp, cfp, auxp)
+	struct device *pdp;
+	struct cfdata *cfp;
+	void *auxp;
+{
+#ifdef ULOWELLCONSOLE
+	static int ulconunit = -1;
+#endif
+	struct zbus_args *zap;
+
+	zap = auxp;
+
+	/*
+	 * allow only one ulowell console
+	 */
+        if (amiga_realconfig == 0)
+#ifdef ULOWELLCONSOLE
+		if (ulconunit != -1)
+#endif
+			return(0);
+
+	if (zap->manid != 1030 || zap->prodid != 0)
+		return(0);
+
+#ifdef ULOWELLCONSOLE
+	if (amiga_realconfig == 0 || ulconunit != cfp->cf_unit) {
+#endif
+		if ((unsigned)ulowell_default_mon >= ulowell_mon_max)
+			ulowell_default_mon = 1;
+
+		current_mon = ul_monitor_defs + ulowell_default_mon - 1;
+		if (ulowell_alive(current_mon) == 0)
+			return(0);
+#ifdef ULOWELLCONSOLE 
+		if (amiga_realconfig == 0) {
+			ulconunit = cfp->cf_unit;
+			cfdata = cfp;
+		} 
+	}
+#endif
+	return(1);
+}
+
+/* 
+ * attach to the grfbus (zbus)
+ */
+void
+grfulattach(pdp, dp, auxp)
+	struct device *pdp, *dp;
+	void *auxp;
+{
+	static struct grf_ul_softc congrf;
+	struct zbus_args *zap;
+	struct grf_softc *gp;
+	struct grf_ul_softc *gup;
+
+	zap = auxp;
+	
+	if (dp == NULL) 
+		gup = &congrf;
+	else
+		gup = (struct grf_ul_softc *)dp;
+
+	gp = &gup->gus_sc;
+
+	if (dp != NULL && congrf.gus_sc.g_regkva != 0) {
+		/*
+		 * inited earlier, just copy (not device struct)
+		 */
+		bcopy(&congrf.gus_sc.g_display, &gp->g_display, 
+		    (char *)&gup->gus_isr - (char *)&gp->g_display);
+
+		/* ...and transfer the isr */
+		gup->gus_isr.isr_ipl = 2;
+		gup->gus_isr.isr_intr = ulisr;
+		gup->gus_isr.isr_arg = (void *)gp;
+		/* 
+		 * To make sure ints are always catched, first add new isr
+		 * then remove old:
+		 */
+		add_isr(&gup->gus_isr);
+		remove_isr(&congrf.gus_isr);
+	} else {
+		gp->g_regkva = (caddr_t)zap->va;
+		gp->g_fbkva = NULL;
+		gp->g_unit = GRF_ULOWELL_UNIT;
+		gp->g_flags = GF_ALIVE;
+		gp->g_mode = ul_mode;
+		gp->g_conpri = grful_cnprobe();
+		gp->g_data = NULL;
+
+		gup->gus_isr.isr_ipl = 2;
+		gup->gus_isr.isr_intr = ulisr;
+		gup->gus_isr.isr_arg = (void *)gp;
+		add_isr(&gup->gus_isr);
+
+		(void)ul_load_code(gp);
+		(void)ul_load_mon(gp, current_mon);
+		grful_iteinit(gp);
+	}
+	if (dp != NULL)
+		printf("\n");
+	/*
+	 * attach grf
+	 */
+	amiga_config_found(cfdata, &gp->g_device, gp, grfulprint);
+}
+
+int
+grfulprint(auxp, pnp)
+	void *auxp;
+	char *pnp;
+{
+	if (pnp)
+		printf("grf%d at %s", ((struct grf_softc *)auxp)->g_unit,
+			pnp);
+	return(UNCONF);
+}
+
+static int 
+ul_getvmode (gp, vm)
+	struct grf_softc *gp;
+	struct grfvideo_mode *vm;
+{
+	struct grfvideo_mode *md;
+
+	if (vm->mode_num && vm->mode_num > ulowell_mon_max)
+		return EINVAL;
+
+	if (! vm->mode_num)
+		vm->mode_num = current_mon - ul_monitor_defs + 1;
+
+	md = ul_monitor_defs + vm->mode_num - 1;
+	strncpy (vm->mode_descr, md->mode_descr, 
+		sizeof (vm->mode_descr));
+
+	/* XXX should tell TMS to measure it */
+	vm->pixel_clock  = md->pixel_clock;
+	vm->disp_width   = md->disp_width;
+	vm->disp_height  = md->disp_height;
+	vm->depth        = md->depth;
+
+	/* XXX should use 16 instead of 2, but others use 1 instead of 8 */
+
+	/*
+	 * XXX another idea: maybe we should transform the timings to
+	 * have blank stop as point of reference (like other grfs) instead
+	 * of sync start?
+	 */
+
+	vm->hblank_start = (md->hblank_start - md->hblank_stop) * 2;
+	vm->hblank_stop  = (md->htotal - 1) * 2;
+	vm->hsync_start  = (md->hsync_start  - md->hblank_stop) * 2;
+	vm->hsync_stop   = (md->hsync_stop + md->htotal - md->hblank_stop) * 2;
+	vm->htotal       = md->htotal * 2;
+
+	vm->vblank_start = md->vblank_start - md->vblank_stop;
+	vm->vblank_stop  = md->vtotal - 1;
+	vm->vsync_start  = md->vsync_start - md->vblank_stop;
+	vm->vsync_stop   = md->vsync_stop + md->vtotal - md->vblank_stop;
+	vm->vtotal       = md->vtotal;
+
+	return 0;
+}
+
+
+static int 
+ul_setvmode (gp, mode)
+	struct grf_softc *gp;
+	unsigned mode;
+{
+	struct grf_ul_softc *gup;
+	struct gspregs *ba;
+	int error;
+
+	if (!mode || mode > ulowell_mon_max)
+		return EINVAL;
+
+	ba = (struct gspregs *)gp->g_regkva;
+	gup = (struct grf_ul_softc *)gp;
+	current_mon = ul_monitor_defs + mode - 1;
+
+	error = ul_load_mon (gp, current_mon) ? 0 : EINVAL;
+
+	return error;
+}
+
+/*
+ * Set the frame buffer or overlay planes on or off.
+ * Always succeeds.
+ */
+
+static __inline void
+ul_setfb(gp, cmd)
+	struct grf_softc *gp;
+	int cmd;
+{
+	struct grf_ul_softc *gup;
+	struct gspregs *ba;
+
+	gup = (struct grf_ul_softc *)gp;
+
+	ba = (struct gspregs *)gp->g_regkva;
+	ba->ctrl = LBL;
+	ba->hstadrh = 0xfe80;
+	ba->hstadrl = 0x0000;
+	ba->data = 6;
+	ba->hstadrl = 0x0020;
+
+	switch (cmd) {
+	case GM_GRFON:
+		gup->gus_ovslct |= 0x40;
+		break;
+	case GM_GRFOFF:
+		gup->gus_ovslct &= ~0x40;
+		break;
+	case GM_GRFOVON:
+		gup->gus_ovslct |= 3;
+		break;
+	case GM_GRFOVOFF:
+		gup->gus_ovslct &= ~3;
+		break;
+	}
+	ba->data = gup->gus_ovslct;
+}
+
+/*
+ * Change the mode of the display.
+ * Return a UNIX error number or 0 for success.
+ */
+int
+ul_mode(gp, cmd, arg, a2, a3)
+	struct grf_softc *gp;
+	int cmd;
+	void *arg;
+	int a2, a3;
+{
+	int i;
+	struct grfdyninfo *gd;
+
+	switch (cmd) {
+	case GM_GRFON:
+	case GM_GRFOFF:
+	case GM_GRFOVON:
+	case GM_GRFOVOFF:
+		ul_setfb (gp, cmd);
+		return 0;
+		  
+	case GM_GRFCONFIG:
+		gd = (struct grfdyninfo *)arg;
+		for (i=0; i<ulowell_mon_max; ++i) {
+			if (ul_monitor_defs[i].disp_width == gd->gdi_dwidth &&
+			    ul_monitor_defs[i].disp_height == gd->gdi_dheight)
+				return ul_setvmode(gp, i+1);
+		}
+		return EINVAL;
+
+	case GM_GRFGETVMODE:
+		return ul_getvmode (gp, (struct grfvideo_mode *) arg);
+
+	case GM_GRFSETVMODE:
+		return ul_setvmode (gp, *(unsigned *) arg);
+
+	case GM_GRFGETNUMVM:
+		*(int *)arg = ulowell_mon_max;
+		return 0;
+
+	case GM_GRFIOCTL:
+		return ul_ioctl (gp, (u_long)arg, (void *)a2, (dev_t)a3);
+
+	default:
+		break;
+	}
+		
+	return EINVAL;
+}
+
+int
+ul_ioctl (gp, cmd, data, dev)
+	register struct grf_softc *gp;
+	u_long cmd;
+	void *data;
+	dev_t dev;
+{
+	switch (cmd) {
+#if 0
+	/*
+	 * XXX we have no hardware sprites, but might implement them
+	 * later in TMS code.
+	 */
+
+	case GRFIOCGSPRITEPOS:
+		return ul_getspritepos (gp, (struct grf_position *) data);
+
+	case GRFIOCSSPRITEPOS:
+		return ul_setspritepos (gp, (struct grf_position *) data);
+
+	case GRFIOCSSPRITEINF:
+		return ul_setspriteinfo (gp, (struct grf_spriteinfo *) data);
+
+	case GRFIOCGSPRITEINF:
+		return ul_getspriteinfo (gp, (struct grf_spriteinfo *) data);
+
+	case GRFIOCGSPRITEMAX:
+		return ul_getspritemax (gp, (struct grf_position *) data);
+
+#endif
+
+	case GRFIOCGETCMAP:
+		return ul_getcmap (gp, (struct grf_colormap *) data, dev);
+
+	case GRFIOCPUTCMAP:
+		return ul_putcmap (gp, (struct grf_colormap *) data, dev);
+
+	case GRFIOCBITBLT:
+		return ul_bitblt (gp, (struct grf_bitblt *) data, dev);
+	}
+
+	return EINVAL;
+}     
+
+int
+ul_getcmap (gp, cmap, dev)
+	struct grf_softc *gp;
+	struct grf_colormap *cmap;
+	dev_t dev;
+{
+	struct grf_ul_softc *gup;
+	u_int8_t *mymap;
+	int mxidx, error;
+
+	gup = (struct grf_ul_softc *)gp;
+
+	if (minor(dev) & GRFIMDEV) {
+		mxidx = 256;
+		mymap = gup->gus_imcmap;
+	} else {
+		mxidx = 4;
+		mymap = gup->gus_ovcmap;
+	}
+	
+	if (cmap->count == 0 || cmap->index >= mxidx)
+		return 0;
+
+	if (cmap->index + cmap->count > mxidx)
+		cmap->count = mxidx - cmap->index;
+
+	/* just copyout from the shadow color map */
+
+	if ((error = copyout(mymap + cmap->index, cmap->red, cmap->count))
+
+	    || (error = copyout(mymap + mxidx + cmap->index, cmap->green, 
+		cmap->count))
+
+	    || (error = copyout(mymap + mxidx * 2 + cmap->index, cmap->blue, 
+		cmap->count)))
+
+		return(error);
+
+	return(0);
+}
+
+int
+ul_putcmap (gp, cmap, dev)
+	struct grf_softc *gp;
+	struct grf_colormap *cmap;
+	dev_t dev;
+{
+	struct grf_ul_softc *gup;
+	struct gspregs *ba;
+	u_int16_t cmd[8];
+	int x, mxidx, error;
+	u_int8_t *mymap;
+
+	gup = (struct grf_ul_softc *)gp;
+
+	if (minor(dev) & GRFIMDEV) {
+		mxidx = 256;
+		mymap = gup->gus_imcmap;
+	} else {
+		mxidx = 4;
+		mymap = gup->gus_ovcmap;
+	}
+
+	if (cmap->count == 0 || cmap->index >= mxidx)
+		return 0;
+
+	if (cmap->index + cmap->count > mxidx)
+		cmap->count = mxidx - cmap->index;
+
+	/* first copyin to our shadow color map */
+
+	if ((error = copyin(cmap->red, mymap + cmap->index, cmap->count))
+
+	    || (error = copyin(cmap->green, mymap + cmap->index + mxidx,
+		cmap->count))
+
+	    || (error = copyin(cmap->blue,  mymap + cmap->index + mxidx*2,
+		cmap->count)))
+
+		return error;
+		
+
+	/* then write from there to the hardware */
+	ba = (struct gspregs *)gp->g_regkva;
+	if (mxidx > 4) {
+		/* image color map: we can write, with a hack, directly */
+		ba->ctrl = LBL;
+		ba->hstadrh = 0xfe80;
+		ba->hstadrl = 0x0000;
+		ba->ctrl |= INCW;
+		ba->data = cmap->index;
+		ba->ctrl &= ~INCW;
+
+		for (x=cmap->index; x < cmap->index + cmap->count; ++x) {
+			ba->data = (u_int16_t) mymap[x];
+			ba->data = (u_int16_t) mymap[x + mxidx];
+			ba->data = (u_int16_t) mymap[x + mxidx * 2];
+		}
+	} else {
+
+		/* overlay planes color map: have to call tms to do it */
+		cmd[0] = GCMD_CMAP;
+		cmd[1] = 1;
+		for (x=cmap->index; x < cmap->index + cmap->count; ++x) {
+			cmd[2] = x;
+			cmd[3] = mymap[x];
+			cmd[4] = mymap[x + mxidx];
+			cmd[5] = mymap[x + mxidx * 2];
+			gsp_write(ba, cmd, 6);
+		}
+	}
+	return 0;
+}
+
+/*
+ * !!! THIS AREA UNDER CONSTRUCTION !!!
+ */
+int ul_BltOpMap[16] = {
+	3, 1, 2, 0, 11,  9, 10, 8, 
+	7, 5, 6, 4, 15, 13, 14, 12
+};
+
+int
+ul_bitblt (gp, bb, dev)
+	struct grf_softc *gp;
+	struct grf_bitblt *bb;
+	dev_t dev;
+{
+	/* XXX not yet implemented, but pretty trivial */
+	return EINVAL;
+}
+
+void
+gsp_write(gsp, ptr, size)
+	struct gspregs *gsp;
+	u_short *ptr;
+	size_t size;
+{
+	u_short put, new_put, next, oc;
+	u_long put_hi, oa;
+	size_t n;
+
+	if (size == 0 || size > 8)
+	        return;
+
+	n = size;
+
+	oc = gsp->ctrl;
+	oa = GSPGETHADRS(gsp);
+
+	gsp->ctrl = (oc & ~INCR) | LBL | INCW;
+	GSPSETHADRS(gsp, GSP_MODE_ADRS);
+	gsp->data &= ~GMODE_FLUSH;
+
+	GSPSETHADRS(gsp, PUT_HI_PTR_ADRS);
+	put_hi = gsp->data << 16;
+
+	GSPSETHADRS(gsp, PUT_PTR_ADRS);
+	put = gsp->data;
+	new_put = put + (8<<4);
+
+	GSPSETHADRS(gsp, GET_PTR_ADRS);
+	next = gsp->data;
+	
+	while (next == new_put) {
+		/*
+		 * we should use an intr. here. unfortunately, we already
+		 * are called from an interupt and can't use tsleep.
+		 * so we do busy waiting, at least for the moment.
+		 */
+
+		GSPSETHADRS(gsp,GET_PTR_ADRS);
+		next = gsp->data;
+	}
+
+	GSPSETHADRS(gsp,put|put_hi);
+	gsp->data = *ptr++ | 8<<4;
+	while ( --n > 0) {
+		gsp->data = *ptr++;
+	}
+
+	GSPSETHADRS(gsp,PUT_PTR_ADRS);
+	gsp->data = new_put;
+	GSPSETHADRS(gsp,oa);
+	gsp->ctrl = oc;
+
+	return;
+}
+
+#endif	/* NGRF */