/*  gxemul: $Id: bt459.h,v 1.3 2005-03-05 12:34:02 debug Exp $  */

#ifndef BT459_H
#define	BT459_H

/*	$NetBSD: bt459.h,v 1.6 2000/01/08 01:02:35 simonb 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.
 *
 * 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.
 *
 *	@(#)cfbreg.h	8.1 (Berkeley) 6/10/93
 */

/*
 * Mach Operating System
 * Copyright (c) 1991,1990,1989 Carnegie Mellon University
 * All Rights Reserved.
 *
 * Permission to use, copy, modify and distribute this software and its
 * documentation is hereby granted, provided that both the copyright
 * notice and this permission notice appear in all copies of the
 * software, derivative works or modified versions, and any portions
 * thereof, and that both notices appear in supporting documentation.
 *
 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
 * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
 *
 * Carnegie Mellon requests users of this software to return to
 *
 *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
 *  School of Computer Science
 *  Carnegie Mellon University
 *  Pittsburgh PA 15213-3890
 *
 * any improvements or extensions that they make and grant Carnegie the
 * rights to redistribute these changes.
 */

/*
 * HISTORY
 * Log:	bt459.h,v
 * Revision 2.4  91/02/05  17:39:43  mrt
 * 	Added author notices
 * 	[91/02/04  11:11:57  mrt]
 *
 * 	Changed to use new Mach copyright
 * 	[91/02/02  12:09:39  mrt]
 *
 * Revision 2.3  90/12/05  23:30:26  af
 * 	Cursor color register are supported, contrary to specs.
 * 	[90/12/03  23:07:22  af]
 *
 * Revision 2.1.1.1  90/11/01  03:36:40  af
 * 	Created, from Brooktree specs:
 * 	"Product Databook 1989"
 * 	"Bt459 135 MHz Monolithic CMOS 256x64 Color Palette RAMDAC"
 * 	Brooktree Corp. San Diego, CA
 * 	LA59001 Rev. J
 * 	[90/09/03            af]
 */

/*
 *	File: bt459.h
 * 	Author: Alessandro Forin, Carnegie Mellon University
 *	Date:	9/90
 *
 *	Defines for the bt459 Cursor/RAMDAC chip
 */

typedef struct {
	unsigned char	addr_lo;
	char						pad0[3];
	unsigned char	addr_hi;
	char						pad1[3];
	unsigned char	addr_reg;
	char						pad2[3];
	unsigned char	addr_cmap;
	char						pad3[3];
} bt459_regmap_t;

/*
 * Additional registers addressed indirectly
 */

				/* 0000-00ff Color Map entries */
				/* 0100-010f Overlay color regs, unsupp */
#define	BT459_REG_CCOLOR_1	0x0181	/* Cursor color regs */
#define	BT459_REG_CCOLOR_2	0x0182
#define	BT459_REG_CCOLOR_3	0x0183
#define	BT459_REG_ID		0x0200	/* read-only, gives "4a" */
#define	BT459_REG_CMD0		0x0201
#define	BT459_REG_CMD1		0x0202
#define	BT459_REG_CMD2		0x0203
#define	BT459_REG_PRM		0x0204
				/* 0205 reserved */
#define	BT459_REG_PBM		0x0206
				/* 0207 reserved */
#define	BT459_REG_ORM		0x0208
#define	BT459_REG_OBM		0x0209
#define	BT459_REG_ILV		0x020a
#define	BT459_REG_TEST		0x020b
#define	BT459_REG_RSIG		0x020c
#define	BT459_REG_GSIG		0x020d
#define	BT459_REG_BSIG		0x020e
				/* 020f-02ff reserved */
#define	BT459_REG_CCR		0x0300
#define	BT459_REG_CXLO		0x0301
#define	BT459_REG_CXHI		0x0302
#define	BT459_REG_CYLO		0x0303
#define	BT459_REG_CYHI		0x0304
#define	BT459_REG_WXLO		0x0305
#define	BT459_REG_WXHI		0x0306
#define	BT459_REG_WYLO		0x0307
#define	BT459_REG_WYHI		0x0308
#define	BT459_REG_WWLO		0x0309
#define	BT459_REG_WWHI		0x030a
#define	BT459_REG_WHLO		0x030b
#define	BT459_REG_WHHI		0x030c
				/* 030d-03ff reserved */
#define BT459_REG_CRAM_BASE	0x0400
#define BT459_REG_CRAM_END	0x07ff

#ifdef _KERNEL
int	bt459init __P((struct fbinfo *));
void	bt459RestoreCursorColor __P((struct fbinfo *));
void	bt459CursorColor __P((struct fbinfo *, unsigned int []));
void	bt459PosCursor __P((struct fbinfo *, int, int));
void	bt459InitColorMap __P((struct fbinfo *));
int	bt459LoadColorMap __P((struct fbinfo *, const u_char *, int, int));
int	bt459GetColorMap __P((struct fbinfo *, u_char *, int, int));
void	bt459LoadCursor __P((struct fbinfo *, u_short *));
int	bt459_video_on __P((struct fbinfo *));
int	bt459_video_off __P((struct fbinfo *));
#endif /* _KERNEL */

#endif	/*  BT459_H  */
