diff options
Diffstat (limited to '')
| -rw-r--r-- | include/grub/ps2.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/include/grub/ps2.h b/include/grub/ps2.h new file mode 100644 index 0000000..4f2e527 --- /dev/null +++ b/include/grub/ps2.h @@ -0,0 +1,43 @@ +/* + * 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 |