/* * crt.h  - This file contains definitions for constants related to PC console. *          More information can be found at *	<http://millenium.atcg.com/~taco/helppc/tables.html> * * Copyright (C) 1998  Eric Valette (valette@crf.canon.fr) *                     Canon Centre Recherche France. * *  The license and distribution terms for this file may be *  found in found in the file LICENSE in this distribution or at *  http://www.rtems.com/license/LICENSE. * * $Id: crt.h,v 1.5 2004/04/21 16:01:33 ralf Exp $ */#ifndef _CRT_H#define _CRT_H/* * Bitmap video origins in text mode. */	/* In monochrome */#define V_MONO	0xb0000	/* In color	 */#define V_COLOR	0xb8000/* * Video Option Byte location. It must be maintained * by the BIOS. */#define VIDEO_MODE_ADDR          	0x449/* * Video controller base IO address location in * BIOS data area */#define DISPLAY_CRT_BASE_IO_ADDR  	0x463/* * Number of collums and lines locations for the * actual video Configuration */#define NB_MAX_COL_ADDR			0x44a#define NB_MAX_ROW_ADDR			0x484    /*     * Miscellaneous information set by the BIOS in offset video_mode,     */#   define VGAMODE7	0x7	/* VGA mode 7 */    /* Color codes in text mode for background and foreground. */#define BLACK		0x0#define BLUE		0x1#define GREEN		0x2#define CYAN		0x3#define RED	   	0x4#define MAGENTA		0x5#define BROWN		0x6#define WHITE		0x7#define GRAY		0x8#define LT_BLUE		0x9#define LT_GREEN	0xa#define LT_CYAN		0xb#define LT_RED		0xc#define LT_MAGENTA	0xd#define YELLOW		0xe#define LT_WHITE	0xf#define BLINK           0x8	/* Mask used to determine blinking */#define OFF             0#define ON              1/* * CRT Controller register offset definitions */#   define CC_CURSSTART	0x0a	/* Cursor start scan line */#   define CC_CURSEND	0x0b	/* Cursor end scan line */#   define CC_STARTADDRHI 0x0c	/* start video ram addr msb */#   define CC_STARTADDRLO 0x0d	/* start video ram lsb */#   define CC_CURSHIGH	0x0e	/* Cursor high location (8 msb)	*/#   define CC_CURSLOW	0x0f	/* Cursor low location (8 msb) */#   define CC_VRETSTART	0x10	/* vertical synchro start lsb */#   define CC_VRETEND	0x11	/* vertical syn end (also it control) */#   define CC_VDISPEND	0x12	/* vertical display end lsb register */#endif /* _CRT_H */