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okuji
c18257ea65
Change the terminal structure a bit, to turn the cursor state explicitly. Suggested by Pavel Roskin. * stage2/term.h (struct term_entry): Remove the member `nocursor' and add `setcursor'. [!STAGE1_5] (console_setcursor): New prototype. [SUPPORT_HERCULES] (hercules_setcursor): Likewise. [!STAGE1_5] (console_nocursor): Removed. [SUPPORT_HERCULES] (hercules_nocursor): Likewise. * stage2/stage2.c (run_menu): Call setcursor instead of nocursor. Call setcursor with 1 before starting a boot entry. * stage2/shared.h (nocursor): Removed. (setcursor): New prototype. * stage2/hercules.c (herc_cursor_state): New variable. (herc_turn_cursor): Removed. (hercules_nocursor): Likewise. (hercules_setcursor): New function. * stage2/char_io.c (get_cmdline): Turn on the cursor at the beginning, and restore it before returning. (nocursor): Removed. (setcursor): New function. * stage2/asm.S (console_cursor_state): New variable. (console_cursor_shape): Likewise. (console_setcursor): New function. (console_nocursor): Removed. * grub/asmstub.c (console_setcursor): New function. (hercules_setcursor): Likewise. (console_nocursor): Removed. (hercules_nocursor): Likewise.
128 lines
4.0 KiB
C
128 lines
4.0 KiB
C
/* term.h - definitions for terminal handling */
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2002 Free Software Foundation, Inc.
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*
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* This program 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 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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 this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef GRUB_TERM_HEADER
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#define GRUB_TERM_HEADER 1
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/* These are used to represent the various color states we use */
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typedef enum
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{
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/* represents the color used to display all text that does not use the user
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* defined colors below
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*/
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COLOR_STATE_STANDARD,
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/* represents the user defined colors for normal text */
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COLOR_STATE_NORMAL,
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/* represents the user defined colors for highlighted text */
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COLOR_STATE_HIGHLIGHT
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} color_state;
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#ifndef STAGE1_5
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/* Flags for representing the capabilities of a terminal. */
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/* Some notes about the flags:
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- These flags are used by higher-level functions but not terminals
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themselves.
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- If a terminal is dumb, you may assume that only putchar, getkey and
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checkkey are called.
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- Some fancy features (nocursor, setcolor, and highlight) can be set to
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NULL. */
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/* Set when input characters shouldn't be echoed back. */
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#define TERM_NO_ECHO (1 << 0)
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/* Set when the editing feature should be disabled. */
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#define TERM_NO_EDIT (1 << 1)
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/* Set when the terminal cannot do fancy things. */
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#define TERM_DUMB (1 << 2)
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/* Set when the terminal needs to be initialized. */
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#define TERM_NEED_INIT (1 << 16)
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struct term_entry
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{
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/* The name of a terminal. */
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const char *name;
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/* The feature flags defined above. */
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unsigned long flags;
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/* Put a character. */
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void (*putchar) (int c);
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/* Check if any input character is available. */
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int (*checkkey) (void);
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/* Get a character. */
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int (*getkey) (void);
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/* Get the cursor position. The return value is ((X << 8) | Y). */
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int (*getxy) (void);
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/* Go to the position (X, Y). */
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void (*gotoxy) (int x, int y);
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/* Clear the screen. */
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void (*cls) (void);
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/* Set the current color to be used */
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void (*setcolorstate) (color_state state);
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/* Set the normal color and the highlight color. The format of each
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color is VGA's. */
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void (*setcolor) (int normal_color, int highlight_color);
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/* Turn on/off the cursor. */
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int (*setcursor) (int on);
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};
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/* This lists up available terminals. */
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extern struct term_entry term_table[];
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/* This points to the current terminal. This is useful, because only
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a single terminal is enabled normally. */
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extern struct term_entry *current_term;
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#endif /* ! STAGE1_5 */
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/* The console stuff. */
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extern int console_current_color;
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void console_putchar (int c);
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#ifndef STAGE1_5
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int console_checkkey (void);
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int console_getkey (void);
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int console_getxy (void);
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void console_gotoxy (int x, int y);
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void console_cls (void);
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void console_setcolorstate (color_state state);
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void console_setcolor (int normal_color, int highlight_color);
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int console_setcursor (int on);
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#endif
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#ifdef SUPPORT_SERIAL
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void serial_putchar (int c);
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int serial_checkkey (void);
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int serial_getkey (void);
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int serial_getxy (void);
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void serial_gotoxy (int x, int y);
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void serial_cls (void);
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void serial_setcolorstate (color_state state);
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#endif
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#ifdef SUPPORT_HERCULES
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void hercules_putchar (int c);
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int hercules_getxy (void);
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void hercules_gotoxy (int x, int y);
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void hercules_cls (void);
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void hercules_setcolorstate (color_state state);
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void hercules_setcolor (int normal_color, int highlight_color);
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int hercules_setcursor (int on);
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#endif
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#endif /* ! GRUB_TERM_HEADER */
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