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 #include <string.h>
14 #include <com32.h>
15 #include "com32io.h"
16 #include "tui.h"
17 #include "syslnx.h"
18
19 com32sys_t inreg, outreg; // Global register sets for use
20
getpos(char * row,char * col,char page)21 void getpos(char *row, char *col, char page)
22 {
23 memset(&inreg, 0, sizeof inreg);
24 REG_AH(inreg) = 0x03;
25 REG_BH(inreg) = page;
26 __intcall(0x10, &inreg, &outreg);
27 *row = REG_DH(outreg);
28 *col = REG_DL(outreg);
29 }
30
inputc(char * scancode)31 char inputc(char *scancode)
32 {
33 syslinux_idle(); /* So syslinux can perform periodic activity */
34 memset(&inreg, 0, sizeof inreg);
35 REG_AH(inreg) = 0x10;
36 __intcall(0x16, &inreg, &outreg);
37 if (scancode)
38 *scancode = REG_AH(outreg);
39 return REG_AL(outreg);
40 }
41
getcursorshape(char * start,char * end)42 void getcursorshape(char *start, char *end)
43 {
44 char page = 0; // XXX TODO
45 memset(&inreg, 0, sizeof inreg);
46 REG_AH(inreg) = 0x03;
47 REG_BH(inreg) = page;
48 __intcall(0x10, &inreg, &outreg);
49 *start = REG_CH(outreg);
50 *end = REG_CL(outreg);
51 }
52
setcursorshape(char start,char end)53 void setcursorshape(char start, char end)
54 {
55 memset(&inreg, 0, sizeof inreg);
56 REG_AH(inreg) = 0x01;
57 REG_CH(inreg) = start;
58 REG_CL(inreg) = end;
59 __intcall(0x10, &inreg, &outreg);
60 }
61
setvideomode(char mode)62 void setvideomode(char mode)
63 {
64 memset(&inreg, 0, sizeof inreg);
65 REG_AH(inreg) = 0x00;
66 REG_AL(inreg) = mode;
67 __intcall(0x10, &inreg, &outreg);
68 }
69
70 // Get char displayed at current position
getcharat(char page)71 unsigned char getcharat(char page)
72 {
73 memset(&inreg, 0, sizeof inreg);
74 REG_AH(inreg) = 0x08;
75 REG_BH(inreg) = page;
76 __intcall(0x16, &inreg, &outreg);
77 return REG_AL(outreg);
78 }
79