add mc6845 CRTC chip registers and definitions.

derived from pcvt_hdr.h file.

1 files changed, 101 insertions, 0 deletions

diff --git a/sys/dev/ic/mc6845.h b/sys/dev/ic/mc6845.h
new file mode 100644
index 00000000000..e67851049cd
--- /dev/null
+++ b/sys/dev/ic/mc6845.h
@@ -0,0 +1,101 @@
+/*	$OpenBSD: mc6845.h,v 1.1 1996/09/23 15:01:48 mickey Exp $	*/
+
+/*
+ * Copyright (c) 1992, 1995 Hellmuth Michaelis and Joerg Wunsch.
+ * Copyright (c) 1992, 1993 Brian Dunford-Shore.
+ * 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 Michael Shalayeff.
+ * 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 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.
+ *
+ */
+
+
+#define MONO_BASE	0x3B4		/* crtc index register address mono */
+#define CGA_BASE	0x3D4		/* crtc index register address color */
+
+#define	CRTC_ADDR	0x00		/* index register */
+
+#define CRTC_HTOTAL	0x00		/* horizontal total */
+#define CRTC_HDISPLE	0x01		/* horizontal display end */
+#define CRTC_HBLANKS	0x02		/* horizontal blank start */
+#define CRTC_HBLANKE	0x03		/* horizontal blank end */
+#define CRTC_HSYNCS	0x04		/* horizontal sync start */
+#define CRTC_HSYNCE	0x05		/* horizontal sync end */
+#define CRTC_VTOTAL	0x06		/* vertical total */
+#define CRTC_OVERFLL	0x07		/* overflow low */
+#define CRTC_IROWADDR	0x08		/* inital row address */
+#define CRTC_MAXROW	0x09		/* maximum row address */
+#define CRTC_CURSTART	0x0A		/* cursor start row address */
+#define CURSOR_ON_BIT	0x20		/* cursor on/off on mda/cga/vga */
+#define CRTC_CUREND	0x0B		/* cursor end row address */
+#define CRTC_STARTADRH	0x0C		/* linear start address mid */
+#define CRTC_STARTADRL	0x0D		/* linear start address low */
+#define CRTC_CURSORH	0x0E		/* cursor address mid */
+#define CRTC_CURSORL	0x0F		/* cursor address low */
+#define CRTC_VSYNCS	0x10		/* vertical sync start */
+#define CRTC_VSYNCE	0x11		/* vertical sync end */
+#define CRTC_VDE	0x12		/* vertical display end */
+#define CRTC_OFFSET	0x13		/* row offset */
+#define CRTC_ULOC	0x14		/* underline row address */
+#define CRTC_VBSTART	0x15		/* vertical blank start */
+#define CRTC_VBEND	0x16		/* vertical blank end */
+#define CRTC_MODE	0x17		/* CRTC mode register */
+#define CRTC_SPLITL	0x18		/* split screen start low */
+
+/* start of ET4000 extensions */
+
+#define CRTC_RASCAS	0x32		/* ras/cas configuration */
+#define CRTC_EXTSTART	0x33		/* extended start address */
+#define CRTC_COMPAT6845	0x34		/* 6845 comatibility control */
+#define CRTC_OVFLHIGH	0x35		/* overflow high */
+#define CRTC_SYSCONF1	0x36		/* video system configuration 1 */
+#define CRTC_SYSCONF2	0x36		/* video system configuration 2 */
+
+/* start of WD/Paradise extensions */
+
+#define	CRTC_PR10	0x29		/* r/w unlocking */
+#define	CRTC_PR11	0x2A		/* ega switches */
+#define	CRTC_PR12	0x2B		/* scratch pad */
+#define	CRTC_PR13	0x2C		/* interlace h/2 start */
+#define	CRTC_PR14	0x2D		/* interlace h/2 end */
+#define	CRTC_PR15	0x2E		/* misc control #1 */
+#define	CRTC_PR16	0x2F		/* misc control #2 */
+#define	CRTC_PR17	0x30		/* misc control #3 */
+					/* 0x31 .. 0x3f reserved */
+/* Video 7 */
+
+#define CRTC_V7ID	0x1f		/* identification register */
+
+/* Trident */
+
+#define CRTC_MTEST	0x1e		/* module test register */
+#define CRTC_SOFTPROG	0x1f		/* software programming */
+#define CRTC_LATCHRDB	0x22		/* latch read back register */
+#define CRTC_ATTRSRDB	0x24		/* attribute state read back register*/
+#define CRTC_ATTRIRDB	0x26		/* attribute index read back register*/
+#define CRTC_HOSTAR	0x27		/* high order start address register */
+