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