1/* -*- c -*- ------------------------------------------------------------- * 2 * 3 * Copyright 2004-2005 Murali Krishnan Ganapathy - All Rights Reserved 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License as published by 7 * the Free Software Foundation, Inc., 53 Temple Place Ste 330, 8 * Boston MA 02111-1307, USA; either version 2 of the License, or 9 * (at your option) any later version; incorporated herein by reference. 10 * 11 * ----------------------------------------------------------------------- */ 12 13#ifndef __COM32IO_H__ 14#define __COM32IO_H__ 15 16#include <com32.h> 17#include <stdio.h> 18#include <libansi.h> 19 20#ifndef NULL 21#define NULL ((void *)0) 22#endif 23 24/* Bits representing ShiftFlags, See Int16/Function 2 or Mem[0x417] to get this info */ 25 26#define INSERT_ON (1<<7) 27#define CAPSLOCK_ON (1<<6) 28#define NUMLOCK_ON (1<<5) 29#define SCRLLOCK_ON (1<<4) 30#define ALT_PRESSED (1<<3) 31#define CTRL_PRESSED (1<<2) 32// actually 1<<1 is Left Shift, 1<<0 is right shift 33#define SHIFT_PRESSED (1<<1 | 1 <<0) 34 35/* BIOS Assisted output routines */ 36 37void getpos(char *row, char *col, char page); 38 39char inputc(char *scancode); // Return ASCII char by val, and scancode by reference 40 41void setcursorshape(char start, char end); // Set cursor shape 42void getcursorshape(char *start, char *end); // Get shape for current page 43 44// Get char displayed at current position in specified page 45unsigned char getcharat(char page); 46 47static inline unsigned char readbiosb(unsigned int ofs) 48{ 49 return *((unsigned char *)MK_PTR(0, ofs)); 50} 51 52static inline char getshiftflags(void) 53{ 54 return readbiosb(0x417); 55} 56 57void scrollupwindow(char top, char left, char bot, char right, char attr, char numlines); //Scroll up given window 58 59void setvideomode(char mode); // Set the video mode. 60 61static inline char getvideomode(void) // Get the current video mode 62{ 63 return readbiosb(0x449); 64} 65 66#endif 67