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diff --git a/nx-X11/programs/Xserver/hw/sunLynx/sunLyUtil.c b/nx-X11/programs/Xserver/hw/sunLynx/sunLyUtil.c
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+/* $Xorg: sunLyUtil.c,v 1.3 2000/08/17 19:48:37 cpqbld Exp $ */
+/*
+ * CG3 and CG6 utility functions for LynxOS, derived from NetBSD
+ * Copyright 1996 by Thomas Mueller
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of Thomas Mueller not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission. Thomas Mueller makes no representations
+ * about the suitability of this software for any purpose. It is provided
+ * "as is" without express or implied warranty.
+ *
+ * THOMAS MUELLER DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THOMAS MUELLER BE LIABLE FOR ANY SPECIAL, 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.
+ *
+ */
+/* $XFree86: xc/programs/Xserver/hw/sunLynx/sunLyUtil.c,v 3.1 1996/12/27 06:51:42 dawes Exp $ */
+
+/* $NetBSD: bt_subr.c,v 1.4 1994/11/20 20:51:54 deraadt Exp $ */
+
+/*
+ * Copyright (c) 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This software was developed by the Computer Systems Engineering group
+ * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
+ * contributed to Berkeley.
+ *
+ * All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Lawrence Berkeley Laboratory.
+ *
+ * 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 the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
+ *
+ * @(#)bt_subr.c 8.2 (Berkeley) 1/21/94
+ */
+
+/* adaption for LynxOS microSPARC 2.4.0 and X11R6[.1]
+ * Copyright 1996 by Thomas Mueller <tm@systrix.de>
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of Thomas Mueller not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission. Thomas Mueller makes no representations
+ * about the suitability of this software for any purpose. It is provided
+ * "as is" without express or implied warranty.
+ *
+ * THOMAS MUELLER DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THOMAS MUELLER BE LIABLE FOR ANY SPECIAL, 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.
+ *
+ */
+
+#include "sun.h"
+#include "btreg.h"
+#include "btvar.h"
+#include "cgsixreg.h"
+#define useracc(a,b,c) (1)
+
+/*
+ * Common code for dealing with Brooktree video DACs.
+ * (Contains some software-only code as well, since the colormap
+ * ioctls are shared between the cgthree and cgsix drivers.)
+ */
+
+/*
+ * Implement an FBIOGETCMAP-like ioctl.
+ */
+int
+bt_getcmap(struct fbcmap *p, union bt_cmap *cm, int cmsize)
+{
+ u_int i;
+ u_int start;
+ u_int count;
+ u_char *cp;
+
+ start = p->index;
+ count = p->count;
+ if (start >= cmsize || start + count > cmsize)
+ return (EINVAL);
+ if (!useracc(p->red, count, B_WRITE) ||
+ !useracc(p->green, count, B_WRITE) ||
+ !useracc(p->blue, count, B_WRITE))
+ return (EFAULT);
+ for (cp = &cm->cm_map[start][0], i = 0; i < count; cp += 3, i++) {
+ p->red[i] = cp[0];
+ p->green[i] = cp[1];
+ p->blue[i] = cp[2];
+ }
+ return (0);
+}
+
+/*
+ * Implement the software portion of an FBIOPUTCMAP-like ioctl.
+ */
+int
+bt_putcmap(struct fbcmap *p, union bt_cmap *cm, int cmsize)
+{
+ u_int i;
+ int start;
+ int count;
+ u_char *cp;
+
+ start = p->index;
+ count = p->count;
+ if (start >= cmsize || start + count > cmsize)
+ return (EINVAL);
+ if (!useracc(p->red, count, B_READ) ||
+ !useracc(p->green, count, B_READ) ||
+ !useracc(p->blue, count, B_READ))
+ return (EFAULT);
+ for (cp = &cm->cm_map[start][0], i = 0; i < count; cp += 3, i++) {
+ cp[0] = p->red[i];
+ cp[1] = p->green[i];
+ cp[2] = p->blue[i];
+ }
+ return (0);
+}
+
+union cursor_cmap { /* colormap, like bt_cmap, but tiny */
+ u_char cm_map[2][3]; /* 2 R/G/B entries */
+ u_int cm_chip[2]; /* 2 chip equivalents */
+};
+
+struct cg6_cursor { /* cg6 hardware cursor status */
+ short cc_enable; /* cursor is enabled */
+ struct fbcurpos cc_pos; /* position */
+ struct fbcurpos cc_hot; /* hot-spot */
+ struct fbcurpos cc_size; /* size of mask & image fields */
+ u_int cc_bits[2][32]; /* space for mask & image bits */
+ union cursor_cmap cc_color; /* cursor colormap */
+};
+
+static union bt_cmap sc_cmap; /* local copy of LUT */
+static int blanked = 1; /* to jump-start it ... */
+static struct cg6_cursor sc_cursor; /* cursor info */
+
+/*
+ * Clean up hardware state (e.g., after bootup or after X crashes).
+ */
+static void
+cg6_reset(fbFd * fb)
+{
+ volatile struct cg6_tec_xxx *tec;
+ int fhc;
+ short fhcrev;
+ volatile struct bt_regs *bt;
+
+ /* hide the cursor, just in case */
+ ((volatile struct cg6_thc *) (fb->thc))->thc_cursxy =
+ (THC_CURSOFF << 16) | THC_CURSOFF;
+
+ /* turn off frobs in transform engine (makes X11 work) */
+ tec = fb->tec;
+ tec->tec_mv = 0;
+ tec->tec_clip = 0;
+ tec->tec_vdc = 0;
+
+ /* take care of hardware bugs in old revisions */
+ fhcrev = (*(int *) fb->fhc >> FHC_REV_SHIFT) &
+ (FHC_REV_MASK >> FHC_REV_SHIFT);
+ if (fhcrev < 5) {
+ /*
+ * Keep current resolution; set cpu to 68020, set test
+ * window (size 1Kx1K), and for rev 1, disable dest cache.
+ */
+ fhc = (*(int *) fb->fhc & FHC_RES_MASK) | FHC_CPU_68020 |
+ FHC_TEST |
+ (11 << FHC_TESTX_SHIFT) | (11 << FHC_TESTY_SHIFT);
+ if (fhcrev < 2)
+ fhc |= FHC_DST_DISABLE;
+ *(int *) fb->fhc = fhc;
+ }
+ /* Enable cursor in Brooktree DAC. */
+ bt = fb->ramdac;
+ bt->bt_addr = 0x06 << 24;
+ bt->bt_ctrl |= 0x03 << 24;
+}
+
+static void
+cg6_loadcursor(fbFd * fb)
+{
+ volatile struct cg6_thc *thc;
+ u_int edgemask;
+ u_int m;
+ int i;
+
+ /*
+ * Keep the top size.x bits. Here we *throw out* the top
+ * size.x bits from an all-one-bits word, introducing zeros in
+ * the top size.x bits, then invert all the bits to get what
+ * we really wanted as our mask. But this fails if size.x is
+ * 32---a sparc uses only the low 5 bits of the shift count---
+ * so we have to special case that.
+ */
+ edgemask = ~0;
+ if (sc_cursor.cc_size.x < 32)
+ edgemask = ~(edgemask >> sc_cursor.cc_size.x);
+ thc = (volatile struct cg6_thc *) fb->thc;
+ for (i = 0; i < 32; i++) {
+ m = sc_cursor.cc_bits[0][i] & edgemask;
+ thc->thc_cursmask[i] = m;
+ thc->thc_cursbits[i] = m & sc_cursor.cc_bits[1][i];
+ }
+}
+
+static void
+cg6_setcursor(fbFd * fb)
+{
+ /* we need to subtract the hot-spot value here */
+#define COORD(f) (sc_cursor.cc_pos.f - sc_cursor.cc_hot.f)
+ ((volatile struct cg6_thc *) (fb->thc))->thc_cursxy = sc_cursor.cc_enable ?
+ ((COORD(x) << 16) | (COORD(y) & 0xffff)) :
+ (THC_CURSOFF << 16) | THC_CURSOFF;
+#undef COORD
+}
+
+/*
+ * Load the cursor (overlay `foreground' and `background') colors.
+ */
+static void
+cg6_loadomap(fbFd * fb)
+{
+ volatile struct bt_regs *bt;
+ u_int i;
+
+ bt = (volatile struct bt_regs *) fb->ramdac;
+ bt->bt_addr = 0x01 << 24; /* set background color */
+ i = sc_cursor.cc_color.cm_chip[0];
+ bt->bt_omap = i; /* R */
+ bt->bt_omap = i << 8; /* G */
+ bt->bt_omap = i << 16; /* B */
+
+ bt->bt_addr = 0x03 << 24; /* set foreground color */
+ bt->bt_omap = i << 24; /* R */
+ i = sc_cursor.cc_color.cm_chip[1];
+ bt->bt_omap = i; /* G */
+ bt->bt_omap = i << 8; /* B */
+}
+
+/*
+ * Load a subset of the current (new) colormap into the color DAC.
+ */
+static void
+cg6_loadcmap(fbFd * fb, union bt_cmap *cm, int start, int ncolors)
+{
+ volatile struct bt_regs *bt;
+ u_int *ip;
+ u_int i;
+ int count;
+
+ ip = &cm->cm_chip[BT_D4M3(start)]; /* start/4 * 3 */
+ count = BT_D4M3(start + ncolors - 1) - BT_D4M3(start) + 3;
+ bt = (struct bt_regs *) fb->ramdac;
+ bt->bt_addr = BT_D4M4(start) << 24;
+ while (--count >= 0) {
+ i = *ip++;
+ /* hardware that makes one want to pound boards with hammers */
+ bt->bt_cmap = i;
+ bt->bt_cmap = i << 8;
+ bt->bt_cmap = i << 16;
+ bt->bt_cmap = i << 24;
+ }
+}
+
+/*
+ * Undo the effect of an FBIOSVIDEO that turns the video off on a CG6
+ */
+static void
+cg6_unblank(fbFd * dev)
+{
+ volatile struct cg6_thc *thc = (volatile struct cg6_thc *) dev->thc;
+ unsigned long x;
+ unsigned long y;
+
+ if (blanked) {
+ thc->thc_misc = (thc->thc_misc & ~THC_MISC_VIDEN) | THC_MISC_VIDEN;
+ }
+ blanked = 0;
+}
+
+/*
+ * Load a subset of the current (new) colormap into the Brooktree DAC.
+ */
+static void
+cg3_loadcmap(fbFd * fb, union bt_cmap *cm, int start, int ncolors)
+{
+ volatile struct bt_regs *bt;
+ u_int *ip;
+ int count;
+
+ ip = &cm->cm_chip[BT_D4M3(start)]; /* start/4 * 3 */
+ count = BT_D4M3(start + ncolors - 1) - BT_D4M3(start) + 3;
+ bt = (struct bt_regs *) fb->ramdac;
+ bt->bt_addr = BT_D4M4(start);
+ while (--count >= 0)
+ bt->bt_cmap = *ip++;
+}
+
+/*
+ * Undo the effect of an FBIOSVIDEO that turns the video off on a CG3
+ */
+static void
+cg3_unblank(fbFd * dev)
+{
+ volatile struct bt_regs *bt;
+
+ if (blanked) {
+ bt = (struct bt_regs *) dev->ramdac;
+ /* restore color 0 (and R of color 1) */
+ bt->bt_addr = 0;
+ bt->bt_cmap = sc_cmap.cm_chip[0];
+
+ /* restore read mask */
+ bt->bt_addr = 0x06; /* command reg */
+ bt->bt_ctrl = 0x73; /* overlay plane */
+ bt->bt_addr = 0x04; /* read mask */
+ bt->bt_ctrl = 0xff; /* color planes */
+ }
+ blanked = 0;
+}
+
+int
+sunIoctl(fbFd * fb, int cmd, void *arg)
+{
+ int error;
+ int v;
+ int i;
+ u_int count;
+ union cursor_cmap tcm;
+
+ switch (cmd) {
+ default:
+ errno = EINVAL;
+ return -1;
+ case FBIOPUTCMAP:
+#define q ((struct fbcmap *)arg)
+ if (error = bt_putcmap(q, &sc_cmap, 256))
+ return error;
+ if (fb->thc) { /* CG6 */
+ cg6_loadcmap(fb, &sc_cmap, q->index, q->count);
+ } else { /* CG3 */
+ cg3_loadcmap(fb, &sc_cmap, q->index, q->count);
+ }
+ break;
+ case FBIOSVIDEO:
+ if (fb->thc) { /* CG6 */
+ if (*(int *) arg)
+ cg6_unblank(fb);
+ else {
+ if (!blanked) {
+ volatile struct cg6_thc *thc =
+ (volatile struct cg6_thc *) fb->thc;
+
+ thc->thc_misc = (thc->thc_misc & ~THC_MISC_VIDEN);
+ }
+ blanked = 1;
+ }
+ } else { /* CG3 */
+ if (*(int *) arg)
+ cg3_unblank(fb);
+ else {
+ if (!blanked) {
+ volatile struct bt_regs *bt;
+
+ bt = (struct bt_regs *) fb->ramdac;
+ bt->bt_addr = 0x06; /* command reg */
+ bt->bt_ctrl = 0x70; /* overlay plane */
+ bt->bt_addr = 0x04; /* read mask */
+ bt->bt_ctrl = 0x00; /* color planes */
+
+ /*
+ * Set color 0 to black -- note that this overwrites R of
+ * color 1.
+ */
+ bt->bt_addr = 0;
+ bt->bt_cmap = 0;
+
+ }
+ blanked = 1;
+ }
+ }
+ break;
+/* these are for both FBIOSCURSOR and FBIOGCURSOR */
+#define p ((struct fbcursor *)arg)
+#define cc (&sc_cursor)
+
+ case FBIOSCURSOR:
+ if (!fb->thc) { /* reject non CG6 */
+ errno = EINVAL;
+ return -1;
+ }
+ /*
+ * For setcmap and setshape, verify parameters, so that
+ * we do not get halfway through an update and then crap
+ * out with the software state screwed up.
+ */
+ v = p->set;
+ if (v & FB_CUR_SETCMAP) {
+ /*
+ * This use of a temporary copy of the cursor
+ * colormap is not terribly efficient, but these
+ * copies are small (8 bytes)...
+ */
+ tcm = cc->cc_color;
+ error = bt_putcmap(&p->cmap, (union bt_cmap *) &tcm, 2);
+ if (error)
+ return (error);
+ }
+ if (v & FB_CUR_SETSHAPE) {
+ if ((u_int) p->size.x > 32 || (u_int) p->size.y > 32)
+ return (EINVAL);
+ count = p->size.y * 32 / NBBY;
+ if (!useracc(p->image, count, B_READ) ||
+ !useracc(p->mask, count, B_READ))
+ return (EFAULT);
+ }
+ /* parameters are OK; do it */
+ if (v & (FB_CUR_SETCUR | FB_CUR_SETPOS | FB_CUR_SETHOT)) {
+ if (v & FB_CUR_SETCUR)
+ cc->cc_enable = p->enable;
+ if (v & FB_CUR_SETPOS)
+ cc->cc_pos = p->pos;
+ if (v & FB_CUR_SETHOT)
+ cc->cc_hot = p->hot;
+ cg6_setcursor(fb);
+ }
+ if (v & FB_CUR_SETCMAP) {
+ cc->cc_color = tcm;
+ cg6_loadomap(fb); /* XXX defer to vertical retrace */
+ }
+ if (v & FB_CUR_SETSHAPE) {
+ cc->cc_size = p->size;
+ count = p->size.y * 32 / NBBY;
+ bzero((caddr_t) cc->cc_bits, sizeof cc->cc_bits);
+ bcopy(p->mask, (caddr_t) cc->cc_bits[0], count);
+ bcopy(p->image, (caddr_t) cc->cc_bits[1], count);
+ cg6_loadcursor(fb);
+ }
+ break;
+ case FBIOSCURPOS:
+ if (!fb->thc) { /* reject non CG6 */
+ errno = EINVAL;
+ return -1;
+ }
+ sc_cursor.cc_pos = *(struct fbcurpos *) arg;
+ cg6_setcursor(fb);
+ break;
+
+ case FBIOGCURMAX:
+ if (!fb->thc) { /* reject non CG6 */
+ errno = EINVAL;
+ return -1;
+ }
+ /* max cursor size is 32x32 */
+ ((struct fbcurpos *) arg)->x = 32;
+ ((struct fbcurpos *) arg)->y = 32;
+ break;
+ case FBIORESET:
+ if (!fb->thc) { /* reject non CG6 */
+ errno = EINVAL;
+ return -1;
+ }
+ cg6_reset(fb);
+ }
+ return 0;
+}