LCOM1920-T02G10

#ifndef _SYS_VIDEO_H

#define _SYS_VIDEO_H 1

/* Definitions used by the console driver. */

#define MONO_BASE    0xB0000L   /* base of mono video memory */

#define COLOR_BASE   0xB8000L   /* base of color video memory */

#define MONO_SIZE     0x1000    /* 4K mono video memory */

#define COLOR_SIZE    0x4000    /* 16K color video memory */

#define EGA_SIZE      0x8000    /* EGA & VGA have at least 32K */

#define BLANK_COLOR   0x0700    /* determines cursor color on blank screen */

#define SCROLL_UP          0    /* scroll forward */

#define SCROLL_DOWN        1    /* scroll backward */

#define CONS_RAM_WORDS    80    /* video ram buffer size */

#define MAX_ESC_PARMS      4    /* number of escape sequence params allowed */

/* Constants relating to the controller chips. */

#define M_6845         0x3B4    /* port for 6845 mono */

#define C_6845         0x3D4    /* port for 6845 color */

#define INDEX              0    /* 6845's index register */

#define DATA               1    /* 6845's data register */

#define STATUS             6    /* 6845's status register */

#define VID_ORG           12    /* 6845's origin register */

#define CURSOR            14    /* 6845's cursor register */

/* Beeper. */

#define BEEP_FREQ     0x0533    /* value to put into timer to set beep freq */

#define B_TIME             3    /* length of CTRL-G beep is ticks */

/* definitions used for font management */

#define GA_SEQUENCER_INDEX      0x3C4

#define GA_SEQUENCER_DATA       0x3C5

#define GA_GRAPHICS_INDEX       0x3CE

#define GA_GRAPHICS_DATA        0x3CF

#define GA_VIDEO_ADDRESS        0xA0000L

#define GA_FONT_SIZE            8192

#endif