kernel/include/tty.h

   1 /*
   2  *  ZeX/OS
   3  *  Copyright (C) 2007  Tomas 'ZeXx86' Jedrzejek (zexx86@gmail.com)
   4  *  Copyright (C) 2008  Tomas 'ZeXx86' Jedrzejek (zexx86@gmail.com)
   5  *  Copyright (C) 2009  Tomas 'ZeXx86' Jedrzejek (zexx86@gmail.com)
   6  *
   7  *  This program is free software: you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License as published by
   9  *  the Free Software Foundation, either version 3 of the License, or
  10  *  (at your option) any later version.
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21
  22 #ifndef _TTY_H
  23 #define _TTY_H
  24
  25 #include <task.h>
  26 #include <user.h>
  27 #include <mytypes.h>
  28
  29 #define FD_TERM                 0x2000
  30
  31 #define TTY_CON_BUF             16000
  32 #define TTY_COUNT_MAX           1024
  33 #define TTY_SCREEN_RES_VGA      4000
  34 #define TTY_SCREEN_RES_VESA     4000
  35
  36 /* font type, size */
  37 typedef struct {
  38         unsigned char *c;
  39         unsigned char x;
  40         unsigned char y;
  41 } tty_font_t;
  42
  43 /* character array resolution - 80x25 */
  44 typedef struct {
  45         unsigned short x;
  46         unsigned short y;
  47 } tty_char_t;
  48
  49 /* log for read () op purposes */
  50 typedef struct {
  51         char *buf;
  52         unsigned short len;
  53 } tty_log_t;
  54
  55 /* Device structure */
  56 typedef struct tty_context {
  57         struct tty_context *next, *prev;
  58
  59         task_t *task;
  60         char *name;
  61         char *screen;
  62         unsigned char screen_x;
  63         unsigned char screen_y;
  64         user_t *user;
  65         char shell[64];
  66         unsigned shell_len;
  67         bool logged;
  68         char pwd[64];
  69         bool active;
  70         tty_log_t *log;
  71 } tty_t;
  72
  73 /* externs */
  74 extern tty_font_t tty_font;             /* global font settings */
  75 extern tty_char_t tty_char;             /* global character array settings */
  76
  77 extern unsigned int init_tty ();
  78 extern bool tty_write (tty_t *tty, char *str, unsigned len);
  79 extern bool tty_putch (char c);
  80 extern bool tty_putnch (tty_t *tty, char c);
  81 extern bool tty_change (tty_t *tty);
  82 extern tty_t *tty_find (char *name);
  83 extern tty_t *tty_findbytask (task_t *task);
  84 extern tty_t *gtty_init ();
  85 extern tty_t *tty_create ();
  86 extern void tty_listview ();
  87
  88 #endif
  89