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/* -*- c -*- ------------------------------------------------------------- *
*
* Copyright 2004 Murali Krishnan Ganapathy - All Rights Reserved
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, Inc., 53 Temple Place Ste 330,
* Bostom MA 02111-1307, USA; either version 2 of the License, or
* (at your option) any later version; incorporated herein by reference.
*
* ----------------------------------------------------------------------- */
#ifndef __BIOSIO_H__
#define __BIOSIO_H__
#ifndef NULL
#define NULL ((void *)0)
#endif
/* BIOS Assisted output routines */
void csprint(const char *str, char attr); // Print a C str (NUL-terminated)
void cprint(char chr,char attr,int times,char disppage); // Print a char
void setdisppage(char num); // Set the display page to specified number
char getdisppage(); // Get current display page
void clearwindow(char top,char left,char bot,char right, char page,char fillchar, char fillattr);
void cls(void); /* Clears the entire current screen page */
void gotoxy(char row,char col, char page);
void getpos(char * row, char * col, char page);
char inputc(char * scancode); // Return ASCII char by val, and scancode by reference
void cursoroff(void); /* Turns on cursor */
void cursoron(void); /* Turns off cursor */
void getstring(char *str, unsigned int size);
static inline unsigned char readbiosb(unsigned short addr)
{
unsigned char v;
asm("movw %2,%%fs ; "
"movb %%fs:%1,%0"
: "=r" (v)
: "m" (*(unsigned char *)(unsigned int)addr),
"r" ((unsigned short)0));
return v;
}
static inline char getnumrows()
{
return readbiosb(0x484);
}
static inline char getnumcols(void)
{
return readbiosb(0x44a);
}
void setvideomode(char mode); // Set the video mode.
unsigned char sleep(unsigned int msec); // Sleep for specified time
void beep(); // A Bell
unsigned char checkkbdbuf(); // Check to see if there is kbd buffer is non-empty?
void clearkbdbuf(); // Clear the kbd buffer (how many chars removed?)
#endif
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