initial import of NetBSD tree

1 files changed, 311 insertions, 0 deletions

diff --git a/sys/arch/pmax/dev/bt478.c b/sys/arch/pmax/dev/bt478.c
new file mode 100644
index 00000000000..23f5e543163
--- /dev/null
+++ b/sys/arch/pmax/dev/bt478.c
@@ -0,0 +1,311 @@
+/*	$NetBSD: bt478.c,v 1.1 1995/09/11 08:11:22 jonathan Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Ralph Campbell and Rick Macklem.
+ *
+ * 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.
+ *
+ *	@(#)bt478.c	8.1 (Berkeley) 6/10/93
+ */
+
+/* 
+ *  devGraphics.c --
+ *
+ *     	This file contains machine-dependent routines for the graphics device.
+ *
+ *	Copyright (C) 1989 Digital Equipment Corporation.
+ *	Permission to use, copy, modify, and distribute this software and
+ *	its documentation for any purpose and without fee is hereby granted,
+ *	provided that the above copyright notice appears in all copies.  
+ *	Digital Equipment Corporation makes no representations about the
+ *	suitability of this software for any purpose.  It is provided "as is"
+ *	without express or implied warranty.
+ *
+ * from: Header: /sprite/src/kernel/dev/ds3100.md/RCS/devGraphics.c,
+ *	v 9.2 90/02/13 22:16:24 shirriff Exp  SPRITE (DECWRL)";
+ */
+
+
+#include <sys/param.h>
+#include <sys/kernel.h>
+#include <sys/device.h>
+#include <sys/select.h>
+
+#include <machine/machConst.h>
+#include <machine/pmioctl.h>
+
+#include <machine/fbio.h>
+#include <machine/fbvar.h>
+
+#include <pmax/dev/bt478.h>
+#include <pmax/pmax/kn01.h>
+
+/*
+ * Forward references.
+ */
+void bt478RestoreCursorColor();
+void bt478CursorColor();	/* qvss ioctl interface uses this */
+/*static*/ void bt478InitColorMap();
+int bt478GetColorMap();
+static void bt478VDACInit();
+int bt478LoadColorMap();
+
+extern int pmax_boardtype;
+extern u_short defCursor[32];
+
+static u_char	bg_RGB[3];	/* background color for the cursor */
+static u_char	fg_RGB[3];	/* foreground color for the cursor */
+
+/* Initialize the VDAC. */
+
+int
+bt478init(fi)
+	struct fbinfo *fi;
+{
+	register VDACRegs *vdac = (VDACRegs *)(fi -> fi_vdac);
+
+	/*
+	 *
+	 * Initialize the VDAC
+	 */
+	vdac->overWA = 0x04; MachEmptyWriteBuffer();
+	vdac->over = 0x00; MachEmptyWriteBuffer();
+	vdac->over = 0x00; MachEmptyWriteBuffer();
+	vdac->over = 0x00; MachEmptyWriteBuffer();
+	vdac->overWA = 0x08; MachEmptyWriteBuffer();
+	vdac->over = 0x00; MachEmptyWriteBuffer();
+	vdac->over = 0x00; MachEmptyWriteBuffer();
+	vdac->over = 0x7f; MachEmptyWriteBuffer();
+	vdac->overWA = 0x0c; MachEmptyWriteBuffer();
+	vdac->over = 0xff; MachEmptyWriteBuffer();
+	vdac->over = 0xff; MachEmptyWriteBuffer();
+	vdac->over = 0xff; MachEmptyWriteBuffer();
+
+	/* Initialize the cursor position... */
+	fi -> fi_cursor.width = 16;
+	fi -> fi_cursor.height = 16;
+	fi -> fi_cursor.x = 0;
+	fi -> fi_cursor.y = 0;
+
+	/*
+	 * Initialize the color map and the screen.
+	 */
+	bt478InitColorMap(fi);
+	bt478RestoreCursorColor (fi);
+	return (1);
+}
+
+/* restore the color of the cursor. */
+
+void
+bt478RestoreCursorColor(fi)
+	struct fbinfo *fi;
+{
+	register VDACRegs *vdac = (VDACRegs *)(fi -> fi_vdac);
+	register int i;
+
+	vdac->overWA = 0x04;
+	MachEmptyWriteBuffer();
+	for (i = 0; i < 3; i++) {  
+		vdac->over = bg_RGB[i];
+		MachEmptyWriteBuffer();
+	}
+
+	vdac->overWA = 0x08;
+	MachEmptyWriteBuffer();
+	vdac->over = 0x00;
+	MachEmptyWriteBuffer();
+	vdac->over = 0x00;
+	MachEmptyWriteBuffer();
+	vdac->over = 0x7f;
+	MachEmptyWriteBuffer();
+
+	vdac->overWA = 0x0c;
+	MachEmptyWriteBuffer();
+	for (i = 0; i < 3; i++) {
+		vdac->over = fg_RGB[i];
+		MachEmptyWriteBuffer();
+	}
+}
+
+/* Set the color of the cursor. */
+
+void
+bt478CursorColor (fi, color)
+	struct fbinfo *fi;
+	unsigned int color[];
+{
+	register int i, j;
+
+	for (i = 0; i < 3; i++)
+		bg_RGB[i] = (u_char)(color[i] >> 8);
+
+	for (i = 3, j = 0; i < 6; i++, j++)
+		fg_RGB[j] = (u_char)(color[i] >> 8);
+
+	bt478RestoreCursorColor (fi);
+}
+
+/* Set the cursor foreground color to zero (used by pm.c
+   for screen blanking). */
+
+void
+bt478BlankCursor(fi)
+	struct fbinfo *fi;
+{
+	register VDACRegs *vdac = (VDACRegs *)(fi -> fi_vdac);
+	register int i;
+
+	vdac->overWA = 0x0c;
+	MachEmptyWriteBuffer();
+	for (i = 0; i < 3; i++) {
+		vdac->over = 0;
+		MachEmptyWriteBuffer();
+	}
+}
+
+/* Initialize the color map. */
+
+/*static*/
+void
+bt478InitColorMap (fi)
+	struct fbinfo *fi;
+{
+	register VDACRegs *vdac = (VDACRegs *)(fi -> fi_vdac);
+	register int i;
+
+	*(volatile char *)MACH_PHYS_TO_UNCACHED
+		(KN01_PHYS_COLMASK_START) = 0xff;	/* XXX */
+	MachEmptyWriteBuffer();
+
+	if (fi -> fi_type.fb_depth == 1) {
+		vdac->mapWA = 0; MachEmptyWriteBuffer();
+		for (i = 0; i < 256; i++) {
+			((u_char *)(fi -> fi_cmap_bits)) [i * 3]
+				= vdac->map = (i < 128) ? 0x00 : 0xff;
+			MachEmptyWriteBuffer();
+			((u_char *)(fi -> fi_cmap_bits)) [i * 3 + 1]
+				= vdac->map = (i < 128) ? 0x00 : 0xff;
+			MachEmptyWriteBuffer();
+			((u_char *)(fi -> fi_cmap_bits)) [i * 3 + 2]
+				= vdac->map = (i < 128) ? 0x00 : 0xff;
+			MachEmptyWriteBuffer();
+		}
+	} else {
+		vdac->mapWA = 0; MachEmptyWriteBuffer();
+		((u_char *)(fi -> fi_cmap_bits)) [0] = 0;
+		((u_char *)(fi -> fi_cmap_bits)) [1] = 0;
+		((u_char *)(fi -> fi_cmap_bits)) [2] = 0;
+		vdac->map = 0;
+		MachEmptyWriteBuffer();
+		vdac->map = 0;
+		MachEmptyWriteBuffer();
+		vdac->map = 0;
+		MachEmptyWriteBuffer();
+
+		for (i = 1; i < 256; i++) {
+			((u_char *)(fi -> fi_cmap_bits)) [i * 3] = 0xff;
+			((u_char *)(fi -> fi_cmap_bits)) [i * 3 + 1] = 0xff;
+			((u_char *)(fi -> fi_cmap_bits)) [i * 3 + 2] = 0xff;
+			vdac->map = 0xff;
+			MachEmptyWriteBuffer();
+			vdac->map = 0xff;
+			MachEmptyWriteBuffer();
+			vdac->map = 0xff;
+			MachEmptyWriteBuffer();
+		}
+#if 0
+#endif
+	}
+
+	for (i = 0; i < 3; i++) {
+		bg_RGB[i] = 0x00;
+		fg_RGB[i] = 0xff;
+	}
+	bt478RestoreCursorColor();
+}
+
+/* Load the color map. */
+
+int
+bt478LoadColorMap(fi, bits, index, count)
+	struct fbinfo *fi;
+	caddr_t bits;
+	int index, count;
+{
+	register VDACRegs *vdac = (VDACRegs *)(fi -> fi_vdac);
+	u_char *cmap_bits;
+	u_char *cmap;
+	int i;
+
+	if (index > 256 || index < 0 || index + count > 256)
+		return EINVAL;
+
+	cmap_bits = (u_char *)bits;
+	cmap = (u_char *)(fi -> fi_cmap_bits) + index * 3;
+
+	vdac->mapWA = index; MachEmptyWriteBuffer();
+	for (i = 0; i < count; i++) {
+		cmap [(i + index) * 3]
+			= vdac->map = cmap_bits [i * 3];
+		MachEmptyWriteBuffer();
+		cmap [(i + index) * 3 + 1]
+			= vdac->map = cmap_bits [i * 3 + 1];
+		MachEmptyWriteBuffer();
+		cmap [(i + index) * 3 + 2]
+			= vdac -> map = cmap_bits [i * 3 + 2];
+		MachEmptyWriteBuffer();
+	}
+	return 0;
+}
+
+/* Copy out count entries of the colormap starting at index into bits. */
+
+int
+bt478GetColorMap(fi, bits, index, count)
+	struct fbinfo *fi;
+	caddr_t bits;
+	int index, count;
+{
+	u_char *cmap_bits;
+	u_char *cmap;
+
+	if (index > 256 || index < 0 || index + count > 256)
+		return EINVAL;
+
+	cmap_bits = (u_char *)bits;
+	cmap = (u_char *)(fi -> fi_cmap_bits) + index * 3;
+
+	bcopy (cmap, cmap_bits, count * 3);
+	return 0;
+}