166 lines
3.3 KiB
C
166 lines
3.3 KiB
C
/*
|
|
* GRUB -- GRand Unified Bootloader
|
|
* Copyright (C) 2002,2003,2005,2007,2008,2009 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/>.
|
|
*/
|
|
|
|
#include <grub/term.h>
|
|
#include <grub/err.h>
|
|
#include <grub/mm.h>
|
|
#include <grub/misc.h>
|
|
#include <grub/env.h>
|
|
#include <grub/cpu/time.h>
|
|
|
|
struct grub_term_output *grub_term_outputs;
|
|
struct grub_term_input *grub_term_inputs;
|
|
|
|
void (*grub_newline_hook) (void) = NULL;
|
|
|
|
/* Put a Unicode character. */
|
|
void
|
|
grub_putcode (grub_uint32_t code, struct grub_term_output *term)
|
|
{
|
|
int height;
|
|
|
|
height = grub_term_height (term);
|
|
|
|
if (code == '\t' && term->getxy)
|
|
{
|
|
int n;
|
|
|
|
n = 8 - ((term->getxy () >> 8) & 7);
|
|
while (n--)
|
|
grub_putcode (' ', term);
|
|
|
|
return;
|
|
}
|
|
|
|
if (code == '\n')
|
|
(term->putchar) ('\r');
|
|
(term->putchar) (code);
|
|
}
|
|
|
|
/* Put a character. C is one byte of a UTF-8 stream.
|
|
This function gathers bytes until a valid Unicode character is found. */
|
|
void
|
|
grub_putchar (int c)
|
|
{
|
|
static grub_size_t size = 0;
|
|
static grub_uint8_t buf[6];
|
|
grub_uint32_t code;
|
|
grub_ssize_t ret;
|
|
|
|
buf[size++] = c;
|
|
ret = grub_utf8_to_ucs4 (&code, 1, buf, size, 0);
|
|
|
|
if (ret != 0)
|
|
{
|
|
struct grub_term_output *term;
|
|
size = 0;
|
|
for (term = grub_term_outputs; term; term = term->next)
|
|
if (grub_term_is_active (term))
|
|
grub_putcode (code, term);
|
|
}
|
|
if (ret == '\n' && grub_newline_hook)
|
|
grub_newline_hook ();
|
|
}
|
|
|
|
int
|
|
grub_getkey (void)
|
|
{
|
|
grub_term_input_t term;
|
|
|
|
while (1)
|
|
{
|
|
FOR_ACTIVE_TERM_INPUTS(term)
|
|
{
|
|
int key = term->checkkey ();
|
|
if (key != -1)
|
|
return term->getkey ();
|
|
}
|
|
|
|
grub_cpu_idle ();
|
|
}
|
|
}
|
|
|
|
int
|
|
grub_checkkey (void)
|
|
{
|
|
grub_term_input_t term;
|
|
|
|
FOR_ACTIVE_TERM_INPUTS(term)
|
|
{
|
|
int key = term->checkkey ();
|
|
if (key != -1)
|
|
return key;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
int
|
|
grub_getkeystatus (void)
|
|
{
|
|
int status = 0;
|
|
grub_term_input_t term;
|
|
|
|
FOR_ACTIVE_TERM_INPUTS(term)
|
|
{
|
|
if (term->getkeystatus)
|
|
status |= term->getkeystatus ();
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
void
|
|
grub_cls (void)
|
|
{
|
|
struct grub_term_output *term;
|
|
|
|
for (term = grub_term_outputs; term; term = term->next)
|
|
{
|
|
if (! grub_term_is_active (term))
|
|
continue;
|
|
|
|
if ((term->flags & GRUB_TERM_DUMB) || (grub_env_get ("debug")))
|
|
{
|
|
grub_putcode ('\n', term);
|
|
grub_refresh ();
|
|
}
|
|
else
|
|
(term->cls) ();
|
|
}
|
|
}
|
|
|
|
void
|
|
grub_setcolorstate (grub_term_color_state state)
|
|
{
|
|
struct grub_term_output *term;
|
|
|
|
for (term = grub_term_outputs; term; term = term->next)
|
|
if (grub_term_is_active (term))
|
|
grub_term_setcolorstate (term, state);
|
|
}
|
|
|
|
void
|
|
grub_refresh (void)
|
|
{
|
|
struct grub_term_output *term;
|
|
|
|
for (term = grub_term_outputs; term; term = term->next)
|
|
if (grub_term_is_active (term))
|
|
grub_term_refresh (term);
|
|
}
|