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 37 void getpos(char *row, char *col, char page); 38 39 char inputc(char *scancode); // Return ASCII char by val, and scancode by reference 40 41 void setcursorshape(char start, char end); // Set cursor shape 42 void getcursorshape(char *start, char *end); // Get shape for current page 43 44 // Get char displayed at current position in specified page 45 unsigned char getcharat(char page); 46 47 static inline unsigned char readbiosb(unsigned int ofs) 48 { 49 return *((unsigned char *)MK_PTR(0, ofs)); 50 } 51 52 static inline char getshiftflags(void) 53 { 54 return readbiosb(0x417); 55 } 56 57 void scrollupwindow(char top, char left, char bot, char right, char attr, char numlines); //Scroll up given window 58 59 void setvideomode(char mode); // Set the video mode. 60 61 static inline char getvideomode(void) // Get the current video mode 62 { 63 return readbiosb(0x449); 64 } 65 66 #endif 67
