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/* -*- pse-c -*-
 *-----------------------------------------------------------------------------
 * Filename: igd_vga.h
 * $Revision: 1.2 $
 *-----------------------------------------------------------------------------
 * INTEL CONFIDENTIAL
 * Copyright (2002-2008) Intel Corporation All Rights Reserved.
 * The source code contained or described herein and all documents related to
 * the source code ("Material") are owned by Intel Corporation or its suppliers
 * or licensors. Title to the Material remains with Intel Corporation or its
 * suppliers and licensors. The Material contains trade secrets and proprietary
 * and confidential information of Intel or its suppliers and licensors. The
 * Material is protected by worldwide copyright and trade secret laws and
 * treaty provisions. No part of the Material may be used, copied, reproduced,
 * modified, published, uploaded, posted, transmitted, distributed, or
 * disclosed in any way without Intel's prior express written permission.
 * 
 * No license under any patent, copyright, trade secret or other intellectual
 * property right is granted to or conferred upon you by disclosure or
 * delivery of the Materials, either expressly, by implication, inducement,
 * estoppel or otherwise. Any license under such intellectual property rights
 * must be express and approved by Intel in writing.
 * 
 * 
 *-----------------------------------------------------------------------------
 * Description:
 *  Header file for common VGA registers and macros.
 *-----------------------------------------------------------------------------
 * Authors:
 *  James Vogt <james.vogt@intel.com>
 *-----------------------------------------------------------------------------
 */

#ifndef _IGD_VGA_H
#define _IGD_VGA_H

#ifdef CONFIG_MICRO
#define VB_CODE_SEG __based( __segname("_CODE"))
#else
#define VB_CODE_SEG
#endif

/* The Maximum VGA Mode Number as specified in the IGD Mode Table. */
#define VGA_MODE_NUM_MAX 0x1C

typedef struct vga_mode_data {
	unsigned char  cols;
	unsigned char  rows;                 /* #rows-1 */
	unsigned char  char_height;
	unsigned short video_buff_size;
	unsigned char  sr_regs[4];
	unsigned char  misc_reg;
	unsigned char  crtc_regs[25];
	unsigned char  ar_regs[20];
	unsigned char  gr_regs[9];
} vga_mode_data_t;

/* This contains the VGA Mode Table.  A ptr to this exists in the 
 * Environment. */
extern vga_mode_data_t VB_CODE_SEG vga_mode_data[];

/* This contains a pointer to the VGA Mode_Table.  This is necessary, so
 * vga_mode.c can use this to program the mode, incase the user has
 * changed the Environment Table. */
extern vga_mode_data_t FAR (*vga_mode_data_ptr)[];

#endif