84 lines
2.5 KiB
C
84 lines
2.5 KiB
C
/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2002,2003,2005,2007,2008,2009 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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#include <grub/machine/memory.h>
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#include <grub/machine/console.h>
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#include <grub/term.h>
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#include <grub/types.h>
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static const struct grub_machine_bios_data_area *bios_data_area =
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(struct grub_machine_bios_data_area *) GRUB_MEMORY_MACHINE_BIOS_DATA_AREA_ADDR;
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#define KEYBOARD_LEFT_SHIFT (1 << 0)
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#define KEYBOARD_RIGHT_SHIFT (1 << 1)
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#define KEYBOARD_CTRL (1 << 2)
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#define KEYBOARD_ALT (1 << 3)
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static int
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grub_console_getkeystatus (void)
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{
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grub_uint8_t status = bios_data_area->keyboard_flag_lower;
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int mods = 0;
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if (status & (KEYBOARD_LEFT_SHIFT | KEYBOARD_RIGHT_SHIFT))
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mods |= GRUB_TERM_STATUS_SHIFT;
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if (status & KEYBOARD_CTRL)
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mods |= GRUB_TERM_STATUS_CTRL;
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if (status & KEYBOARD_ALT)
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mods |= GRUB_TERM_STATUS_ALT;
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return mods;
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}
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static struct grub_term_input grub_console_term_input =
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{
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.name = "console",
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.checkkey = grub_console_checkkey,
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.getkey = grub_console_getkey,
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.getkeystatus = grub_console_getkeystatus,
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};
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static struct grub_term_output grub_console_term_output =
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{
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.name = "console",
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.putchar = grub_console_putchar,
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.getcharwidth = grub_console_getcharwidth,
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.getwh = grub_console_getwh,
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.getxy = grub_console_getxy,
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.gotoxy = grub_console_gotoxy,
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.cls = grub_console_cls,
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.setcolorstate = grub_console_setcolorstate,
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.setcolor = grub_console_setcolor,
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.getcolor = grub_console_getcolor,
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.setcursor = grub_console_setcursor,
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.flags = GRUB_TERM_CODE_TYPE_VGA
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};
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void
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grub_console_init (void)
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{
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grub_term_register_output ("console", &grub_console_term_output);
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grub_term_register_input ("console", &grub_console_term_input);
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}
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void
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grub_console_fini (void)
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{
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grub_term_unregister_input (&grub_console_term_input);
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grub_term_unregister_output (&grub_console_term_output);
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}
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