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  *   ˆl–Ü4ý( ©³( 	Å€fàB¦-ÿ¿ƒmà_†I|¥�+ÃÂ ©    /*
 * drivers/video/clgenfb.h - Cirrus Logic chipset constants
 *
 * Copyright 1999 Jeff Garzik <jgarzik@pobox.com>
 *
 * Original clgenfb author:  Frank Neumann
 *
 * Based on retz3fb.c and clgen.c:
 *      Copyright (C) 1997 Jes Sorensen
 *      Copyright (C) 1996 Frank Neumann
 *
 ***************************************************************
 *
 * Format this code with GNU indent '-kr -i8 -pcs' options.
 *
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file COPYING in the main directory of this archive
 * for more details.
 *
 */

#ifndef __CLGENFB_H__
#define __CLGENFB_H__

/* OLD COMMENT: definitions for Piccolo/SD64 VGA controller chip   */
/* OLD COMMENT: these definitions might most of the time also work */
/* OLD COMMENT: for other CL-GD542x/543x based boards..            */

/*** External/General Registers ***/
#define CL_POS102	0x102  	/* POS102 register */
#define CL_VSSM		0x46e8 	/* Adapter Sleep */
#define CL_VSSM2	0x3c3	/* Motherboard Sleep */

/*** VGA Sequencer Registers ***/
/* the following are from the "extension registers" group */
#define CL_SEQR6	0x6	/* Unlock ALL Extensions */
#define CL_SEQR7	0x7	/* Extended Sequencer Mode */
#define CL_SEQR8	0x8	/* EEPROM Control */
#define CL_SEQR9	0x9	/* Scratch Pad 0 (do not access!) */
#define CL_SEQRA	0xa	/* Scratch Pad 1 (do not access!) */
#define CL_SEQRB	0xb	/* VCLK0 Numerator */
#define CL_SEQRC	0xc	/* VCLK1 Numerator */
#define CL_SEQRD	0xd	/* VCLK2 Numerator */
#define CL_SEQRE	0xe	/* VCLK3 Numerator */
#define CL_SEQRF	0xf	/* DRAM Control */
#define CL_SEQR10	0x10	/* Graphics Cursor X Position */
#define CL_SEQR11	0x11	/* Graphics Cursor Y Position */
#define CL_SEQR12	0x12	/* Graphics Cursor Attributes */
#define CL_SEQR13	0x13	/* Graphics Cursor Pattern Address Offset */
#define CL_SEQR14	0x14	/* Scratch Pad 2 (CL-GD5426/'28 Only) (do not access!) */
#define CL_SEQR15	0x15	/* Scratch Pad 3 (CL-GD5426/'28 Only) (do not access!) */
#define CL_SEQR16	0x16	/* Performance Tuning (CL-GD5424/'26/'28 Only) */
#define CL_SEQR17	0x17	/* Configuration ReadBack and Extended Control (CL-GF5428 Only) */
#define CL_SEQR18	0x18	/* Signature Generator Control (Not CL-GD5420) */
#define CL_SEQR19	0x19	/* Signature Generator Result Low Byte (Not CL-GD5420) */
#define CL_SEQR1A	0x1a	/* Signature Generator Result High Byte (Not CL-GD5420) */
#define CL_SEQR1B	0x1b	/* VCLK0 Denominator and Post-Scalar Value */
#define CL_SEQR1C	0x1c	/* VCLK1 Denominator and Post-Scalar Value */
#define CL_SEQR1D	0x1d	/* VCLK2 Denominator and Post-Scalar Value */
#define CL_SEQR1E	0x1e	/* VCLK3 Denominator and Post-Scalar Value */
#define CL_SEQR1F	0x1f	/* BIOS ROM write enable and MCLK Select */

/*** CRT Controller Registers ***/
#define CL_CRT22	0x22	/* Graphics Data Latches ReadBack */
#define CL_CRT24	0x24	/* Attribute Controller Toggle ReadBack */
#define CL_CRT26	0x26	/* Attribute Controller Index ReadBack */
/* the following are from the "extension registers" group */
#define CL_CRT19	0x19	/* Interlace End */
#define CL_CRT1A	0x1a	/* Interlace Control */
#define CL_CRT1B	0x1b	/* Extended Display Controls */
#define CL_CRT1C	0x1c	/* Sync adjust and genlock register */
#define CL_CRT1D	0x1d	/* Overlay Extended Control register */
#define CL_CRT1E	0x1e	/* Another overflow register */
#define CL_CRT25	0x25	/* Part Status Register */
#define CL_CRT27	0x27	/* ID Register */
#define CL_CRT51	0x51	/* P4 disable "flicker fixer" */

/*** Graphics Controller Registers ***/
/* the following are from the "extension registers" group */
#define CL_GR9		0x9	/* Offset Register 0 */
#define CL_GRA		0xa	/* Offset Register 1 */
#define CL_GRB		0xb	/* Graphics Controller Mode Extensions */
#define CL_GRC		0xc	/* Color Key (CL-GD5424/'26/'28 Only) */
#define CL_GRD		0xd	/* Color Key Mask (CL-GD5424/'26/'28 Only) */
#define CL_GRE		0xe	/* Miscellaneous Control (Cl-GD5428 Only) */
#define CL_GRF		0xf	/* Display Compression Control register */
#define CL_GR10		0x10	/* 16-bit Pixel BG Co