include/grub/at_keyboard.h

   1 /*
   2  *  GRUB  --  GRand Unified Bootloader
   3  *  Copyright (C) 2007,2008,2009  Free Software Foundation, Inc.
   4  *
   5  *  GRUB 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, either version 3 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  GRUB is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19 #ifndef GRUB_AT_KEYBOARD_HEADER
  20 #define GRUB_AT_KEYBOARD_HEADER 1
  21
  22 /* Used for sending commands to the controller.  */
  23 #define KEYBOARD_COMMAND_ISREADY(x)     !((x) & 0x02)
  24 #define KEYBOARD_COMMAND_READ           0x20
  25 #define KEYBOARD_COMMAND_WRITE          0x60
  26 #define KEYBOARD_COMMAND_REBOOT         0xfe
  27
  28 #define KEYBOARD_AT_TRANSLATE           0x40
  29
  30 #define GRUB_AT_ACK                     0xfa
  31 #define GRUB_AT_NACK                    0xfe
  32 #define GRUB_AT_TRIES                   5
  33
  34 #define KEYBOARD_ISMAKE(x)      !((x) & 0x80)
  35 #define KEYBOARD_ISREADY(x)     ((x) & 0x01)
  36 #define KEYBOARD_SCANCODE(x)    ((x) & 0x7f)
  37
  38 extern void grub_at_keyboard_init (void);
  39 extern void grub_at_keyboard_fini (void);
  40 int grub_at_keyboard_is_alive (void);
  41
  42 #endif