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/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2007,2008,2009 Free Software Foundation, Inc.
*
* GRUB is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GRUB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef GRUB_PS2_HEADER
#define GRUB_PS2_HEADER 1
#include <grub/types.h>
#define GRUB_AT_ACK 0xfa
#define GRUB_AT_NACK 0xfe
#define GRUB_AT_TRIES 5
/* Make sure it's zeroed-out and set current_set at init. */
struct grub_ps2_state
{
int e0_received;
int f0_received;
grub_uint8_t led_status;
short at_keyboard_status;
grub_uint8_t current_set;
};
/* If there is a key pending, return it; otherwise return GRUB_TERM_NO_KEY. */
int
grub_ps2_process_incoming_byte (struct grub_ps2_state *ps2_state,
grub_uint8_t data);
#endif
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