5bcdf67642
Move grub_getkeystatushelper() function from grub-core/commands/keystatus.c to grub-core/kern/term.c and export it so that it can be used outside of the keystatus command code too. There's no logic change in this patch. The function definition is moved so it can be called from grub-core/kern/term.c in a subsequent patch. It will be used to determine if a SHIFT key has was held down and use that also to interrupt the countdown, without the need to press a key at the right time. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
148 lines
3.1 KiB
C
148 lines
3.1 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/term.h>
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#include <grub/err.h>
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#include <grub/mm.h>
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#include <grub/misc.h>
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#include <grub/env.h>
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#include <grub/time.h>
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struct grub_term_output *grub_term_outputs_disabled;
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struct grub_term_input *grub_term_inputs_disabled;
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struct grub_term_output *grub_term_outputs;
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struct grub_term_input *grub_term_inputs;
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/* Current color state. */
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grub_uint8_t grub_term_normal_color = GRUB_TERM_DEFAULT_NORMAL_COLOR;
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grub_uint8_t grub_term_highlight_color = GRUB_TERM_DEFAULT_HIGHLIGHT_COLOR;
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void (*grub_term_poll_usb) (int wait_for_completion) = NULL;
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void (*grub_net_poll_cards_idle) (void) = NULL;
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/* Put a Unicode character. */
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static void
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grub_putcode_dumb (grub_uint32_t code,
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struct grub_term_output *term)
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{
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struct grub_unicode_glyph c =
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{
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.base = code,
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.variant = 0,
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.attributes = 0,
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.ncomb = 0,
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.estimated_width = 1
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};
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if (code == '\t' && term->getxy)
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{
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int n;
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n = GRUB_TERM_TAB_WIDTH - ((term->getxy (term).x)
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% GRUB_TERM_TAB_WIDTH);
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while (n--)
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grub_putcode_dumb (' ', term);
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return;
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}
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(term->putchar) (term, &c);
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if (code == '\n')
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grub_putcode_dumb ('\r', term);
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}
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static void
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grub_xputs_dumb (const char *str)
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{
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for (; *str; str++)
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{
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grub_term_output_t term;
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grub_uint32_t code = *str;
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if (code > 0x7f)
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code = '?';
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FOR_ACTIVE_TERM_OUTPUTS(term)
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grub_putcode_dumb (code, term);
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}
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}
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void (*grub_xputs) (const char *str) = grub_xputs_dumb;
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int
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grub_getkey_noblock (void)
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{
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grub_term_input_t term;
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if (grub_term_poll_usb)
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grub_term_poll_usb (0);
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if (grub_net_poll_cards_idle)
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grub_net_poll_cards_idle ();
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FOR_ACTIVE_TERM_INPUTS(term)
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{
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int key = term->getkey (term);
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if (key != GRUB_TERM_NO_KEY)
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return key;
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}
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return GRUB_TERM_NO_KEY;
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}
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int
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grub_getkey (void)
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{
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int ret;
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grub_refresh ();
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while (1)
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{
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ret = grub_getkey_noblock ();
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if (ret != GRUB_TERM_NO_KEY)
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return ret;
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grub_cpu_idle ();
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}
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}
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int
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grub_getkeystatus (void)
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{
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int status = 0;
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grub_term_input_t term;
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if (grub_term_poll_usb)
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grub_term_poll_usb (0);
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FOR_ACTIVE_TERM_INPUTS(term)
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{
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if (term->getkeystatus)
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status |= term->getkeystatus (term);
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}
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return status;
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}
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void
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grub_refresh (void)
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{
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struct grub_term_output *term;
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FOR_ACTIVE_TERM_OUTPUTS(term)
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grub_term_refresh (term);
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}
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