142 lines
3.5 KiB
C
142 lines
3.5 KiB
C
/* console.c - console interface layer for U-Boot platforms */
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2013 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/misc.h>
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#include <grub/types.h>
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#include <grub/err.h>
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#include <grub/terminfo.h>
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#include <grub/uboot/uboot.h>
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#include <grub/uboot/console.h>
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static void
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put (struct grub_term_output *term __attribute__ ((unused)), const int c)
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{
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uboot_putc (c);
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}
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static int
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readkey (struct grub_term_input *term __attribute__ ((unused)))
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{
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if (uboot_tstc () > 0)
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return uboot_getc ();
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return -1;
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}
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static void
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uboot_console_setcursor (struct grub_term_output *term
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__attribute__ ((unused)), int on
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__attribute__ ((unused)))
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{
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grub_terminfo_setcursor (term, on);
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}
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static grub_err_t
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uboot_console_init_input (struct grub_term_input *term)
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{
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return grub_terminfo_input_init (term);
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}
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extern struct grub_terminfo_output_state uboot_console_terminfo_output;
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static void
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uboot_console_dimensions (void)
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{
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/* Use a small console by default. */
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if (!uboot_console_terminfo_output.width)
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uboot_console_terminfo_output.width = 80;
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if (!uboot_console_terminfo_output.height)
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uboot_console_terminfo_output.height = 24;
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}
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static grub_err_t
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uboot_console_init_output (struct grub_term_output *term)
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{
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uboot_console_dimensions ();
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grub_terminfo_output_init (term);
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return 0;
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}
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struct grub_terminfo_input_state uboot_console_terminfo_input = {
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.readkey = readkey
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};
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struct grub_terminfo_output_state uboot_console_terminfo_output = {
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.put = put,
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.width = 80,
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.height = 24
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};
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static struct grub_term_input uboot_console_term_input = {
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.name = "console",
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.init = uboot_console_init_input,
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.getkey = grub_terminfo_getkey,
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.data = &uboot_console_terminfo_input
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};
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static struct grub_term_output uboot_console_term_output = {
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.name = "console",
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.init = uboot_console_init_output,
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.putchar = grub_terminfo_putchar,
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.getwh = grub_terminfo_getwh,
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.getxy = grub_terminfo_getxy,
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.gotoxy = grub_terminfo_gotoxy,
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.cls = grub_terminfo_cls,
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.setcolorstate = grub_terminfo_setcolorstate,
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.setcursor = uboot_console_setcursor,
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.flags = GRUB_TERM_CODE_TYPE_ASCII,
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.data = &uboot_console_terminfo_output,
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};
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void
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grub_console_init_early (void)
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{
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grub_term_register_input ("console", &uboot_console_term_input);
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grub_term_register_output ("console", &uboot_console_term_output);
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}
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/*
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* grub_console_init_lately():
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* Initializes terminfo formatting by registering terminal type.
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* Called after heap has been configured.
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*
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*/
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void
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grub_console_init_lately (void)
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{
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const char *type;
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/* See if explicitly set by U-Boot environment */
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type = uboot_env_get ("grub_term");
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if (!type)
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type = "vt100";
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grub_terminfo_init ();
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grub_terminfo_output_register (&uboot_console_term_output, type);
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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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}
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