---

video.h File Reference

Low level video controller 6845 driver header. More...

#include <const.h>
#include <kernel/console.h>

Go to the source code of this file.

Defines
#define	BLANK   (0x20 | (DEFAULT_COLOR << 8))
	The blank character.
#define	VIDEO_MEM_ADDRESS   PHYSICAL(0xB8000)
	The physical address of the video memory buffer.
Functions
bool	move_cur (console_t *console)
	Refresh cursor position for a selected console. Parameters: console  The selected console address. Returns: TRUE if the current console is the foreground console; FALSE otherwise. Note: There is no reason to refresh the cursor if the selected console is not the foreground console. In this case the function returns a value of FALSE.
void	k_clrscr (console_t *console)
	Clear the screen of the selected console. Parameters: console  The selected console address.
word	k_get_cur_pos (console_t *console)
	Get the cursor position of the selected console. Parameters: console  The selected console address. Returns: The cursor position (in characters from the beginning of the video buffer).
bool	k_set_cur_pos (console_t *console, word pos)
	Set the cursor position of the selected console. Parameters: console  The selected console address. pos  The cursor position (in characters from the beginning of the video buffer). Returns: TRUE on success; FALSE if the position is over the buffer.
byte	k_get_color (console_t *console)
	Get the current color of the selected console. Parameters: console  The selected console address. Returns: The current color code (see console.h).
void	k_set_color (console_t *console, byte attrib)
	Set the current color of the selected console. Parameters: console  The selected console address. attrib  The current color code (see console.h).
void	k_scroll_up (console_t *console)
	Scroll up the screen of the selected console. Parameters: console  The selected console address.
void	k_gotoxy (console_t *console, int x, int y)
	Set the (x, y) coordinates as the current position in the selected console. Parameters: console  The selected console address. x  The column position. y  The row position.
void	_kputchar (console_t *console, byte c)
	Put a character in the selected console. Parameters: console  The selected console address. c  The ASCII code of the character to print.
void	_kprintf (const byte *message,...)
void	init_video ()
	Initialize the video parameters.
byte	k_get_crt_height ()
	Get the CRT height (in characters). Returns: The CRT heitht.
byte	k_get_crt_width ()
	Get the CRT width (in characters). Returns: The CRT width.

---

Detailed Description

Low level video controller 6845 driver header.

Author:

Andrea Righi <drizzt@inwind.it>

Date:

Last update: 2003-11-08

Note:

Copyright (©) 2003 Andrea Righi

Definition in file video.h.

---

Define Documentation

#define BLANK   (0x20 | (DEFAULT_COLOR << 8))

The blank character. Definition at line 15 of file video.h.

#define VIDEO_MEM_ADDRESS   PHYSICAL(0xB8000)

The physical address of the video memory buffer. Definition at line 18 of file video.h.

---

Function Documentation

void _kprintf (  const byte *    message, ...    )

---