kern/emu/console.c

2N/A/*  console.c -- Ncurses console for GRUB.  */
2N/A/*
2N/A *  GRUB  --  GRand Unified Bootloader
2N/A *  Copyright (C) 2003,2005,2007,2008  Free Software Foundation, Inc.
2N/A *
2N/A *  GRUB is free software: you can redistribute it and/or modify
2N/A *  it under the terms of the GNU General Public License as published by
2N/A *  the Free Software Foundation, either version 3 of the License, or
2N/A *  (at your option) any later version.
2N/A *
2N/A *  GRUB is distributed in the hope that it will be useful,
2N/A *  but WITHOUT ANY WARRANTY; without even the implied warranty of
2N/A *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
2N/A *  GNU General Public License for more details.
2N/A *
2N/A *  You should have received a copy of the GNU General Public License
2N/A *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
2N/A */
2N/A
2N/A#include <config.h>
2N/A#include <config-util.h>
2N/A
2N/A/* For compatibility.  */
2N/A#ifndef A_NORMAL
2N/A# define A_NORMAL   0
2N/A#endif /* ! A_NORMAL */
2N/A#ifndef A_STANDOUT
2N/A# define A_STANDOUT 0
2N/A#endif /* ! A_STANDOUT */
2N/A
2N/A#include <grub/emu/console.h>
2N/A#include <grub/term.h>
2N/A#include <grub/types.h>
2N/A
2N/A#if defined(HAVE_NCURSES_CURSES_H)
2N/A# include <ncurses/curses.h>
2N/A#elif defined(HAVE_NCURSES_H)
2N/A# include <ncurses.h>
2N/A#elif defined(HAVE_CURSES_H)
2N/A# include <curses.h>
2N/A#else
2N/A#error What the hell?
2N/A#endif
2N/A
2N/Astatic int grub_console_attr = A_NORMAL;
2N/A
2N/Agrub_uint8_t grub_console_cur_color = 7;
2N/A
2N/Astatic const grub_uint8_t grub_console_standard_color = 0x7;
2N/A
2N/A#define NUM_COLORS  8
2N/A
2N/Astatic grub_uint8_t color_map[NUM_COLORS] =
2N/A{
2N/A  COLOR_BLACK,
2N/A  COLOR_BLUE,
2N/A  COLOR_GREEN,
2N/A  COLOR_CYAN,
2N/A  COLOR_RED,
2N/A  COLOR_MAGENTA,
2N/A  COLOR_YELLOW,
2N/A  COLOR_WHITE
2N/A};
2N/A
2N/Astatic int use_color;
2N/A
2N/Astatic void
2N/Agrub_ncurses_putchar (struct grub_term_output *term __attribute__ ((unused)),
2N/A              const struct grub_unicode_glyph *c)
2N/A{
2N/A  addch (c->base | grub_console_attr);
2N/A}
2N/A
2N/Astatic void
2N/Agrub_ncurses_setcolorstate (struct grub_term_output *term,
2N/A                grub_term_color_state state)
2N/A{
2N/A  switch (state)
2N/A    {
2N/A    case GRUB_TERM_COLOR_STANDARD:
2N/A      grub_console_cur_color = grub_console_standard_color;
2N/A      grub_console_attr = A_NORMAL;
2N/A      break;
2N/A    case GRUB_TERM_COLOR_NORMAL:
2N/A      grub_console_cur_color = term->normal_color;
2N/A      grub_console_attr = A_NORMAL;
2N/A      break;
2N/A    case GRUB_TERM_COLOR_HIGHLIGHT:
2N/A      grub_console_cur_color = term->highlight_color;
2N/A      grub_console_attr = A_STANDOUT;
2N/A      break;
2N/A    default:
2N/A      break;
2N/A    }
2N/A
2N/A  if (use_color)
2N/A    {
2N/A      grub_uint8_t fg, bg;
2N/A
2N/A      fg = (grub_console_cur_color & 7);
2N/A      bg = (grub_console_cur_color >> 4) & 7;
2N/A
2N/A      grub_console_attr = (grub_console_cur_color & 8) ? A_BOLD : A_NORMAL;
2N/A      color_set ((bg << 3) + fg, 0);
2N/A    }
2N/A}
2N/A
2N/Astatic int
2N/Agrub_ncurses_getkey (struct grub_term_input *term __attribute__ ((unused)))
2N/A{
2N/A  int c;
2N/A
2N/A  wtimeout (stdscr, 100);
2N/A  c = getch ();
2N/A
2N/A  switch (c)
2N/A    {
2N/A    case ERR:
2N/A      return GRUB_TERM_NO_KEY;
2N/A    case KEY_LEFT:
2N/A      c = GRUB_TERM_KEY_LEFT;
2N/A      break;
2N/A
2N/A    case KEY_RIGHT:
2N/A      c = GRUB_TERM_KEY_RIGHT;
2N/A      break;
2N/A
2N/A    case KEY_UP:
2N/A      c = GRUB_TERM_KEY_UP;
2N/A      break;
2N/A
2N/A    case KEY_DOWN:
2N/A      c = GRUB_TERM_KEY_DOWN;
2N/A      break;
2N/A
2N/A    case KEY_IC:
2N/A      c = 24;
2N/A      break;
2N/A
2N/A    case KEY_DC:
2N/A      c = GRUB_TERM_KEY_DC;
2N/A      break;
2N/A
2N/A    case KEY_BACKSPACE:
2N/A      /* XXX: For some reason ncurses on xterm does not return
2N/A     KEY_BACKSPACE.  */
2N/A    case 127:
2N/A      c = '\b';
2N/A      break;
2N/A
2N/A    case KEY_HOME:
2N/A      c = GRUB_TERM_KEY_HOME;
2N/A      break;
2N/A
2N/A    case KEY_END:
2N/A      c = GRUB_TERM_KEY_END;
2N/A      break;
2N/A
2N/A    case KEY_NPAGE:
2N/A      c = GRUB_TERM_KEY_NPAGE;
2N/A      break;
2N/A
2N/A    case KEY_PPAGE:
2N/A      c = GRUB_TERM_KEY_PPAGE;
2N/A      break;
2N/A    }
2N/A
2N/A  return c;
2N/A}
2N/A
2N/Astatic grub_uint16_t
2N/Agrub_ncurses_getxy (struct grub_term_output *term __attribute__ ((unused)))
2N/A{
2N/A  int x;
2N/A  int y;
2N/A
2N/A  getyx (stdscr, y, x);
2N/A
2N/A  return (x << 8) | y;
2N/A}
2N/A
2N/Astatic grub_uint16_t
2N/Agrub_ncurses_getwh (struct grub_term_output *term __attribute__ ((unused)))
2N/A{
2N/A  int x;
2N/A  int y;
2N/A
2N/A  getmaxyx (stdscr, y, x);
2N/A
2N/A  return (x << 8) | y;
2N/A}
2N/A
2N/Astatic void
2N/Agrub_ncurses_gotoxy (struct grub_term_output *term __attribute__ ((unused)),
2N/A             grub_uint8_t x, grub_uint8_t y)
2N/A{
2N/A  move (y, x);
2N/A}
2N/A
2N/Astatic void
2N/Agrub_ncurses_cls (struct grub_term_output *term __attribute__ ((unused)))
2N/A{
2N/A  clear ();
2N/A  refresh ();
2N/A}
2N/A
2N/Astatic void
2N/Agrub_ncurses_setcursor (struct grub_term_output *term __attribute__ ((unused)),
2N/A            int on)
2N/A{
2N/A  curs_set (on ? 1 : 0);
2N/A}
2N/A
2N/Astatic void
2N/Agrub_ncurses_refresh (struct grub_term_output *term __attribute__ ((unused)))
2N/A{
2N/A  refresh ();
2N/A}
2N/A
2N/Astatic grub_err_t
2N/Agrub_ncurses_init (struct grub_term_output *term __attribute__ ((unused)))
2N/A{
2N/A  initscr ();
2N/A  raw ();
2N/A  noecho ();
2N/A  scrollok (stdscr, TRUE);
2N/A
2N/A  nonl ();
2N/A  intrflush (stdscr, FALSE);
2N/A  keypad (stdscr, TRUE);
2N/A
2N/A  if (has_colors ())
2N/A    {
2N/A      start_color ();
2N/A
2N/A      if ((COLORS >= NUM_COLORS) && (COLOR_PAIRS >= NUM_COLORS * NUM_COLORS))
2N/A        {
2N/A          int i, j, n;
2N/A
2N/A          n = 0;
2N/A          for (i = 0; i < NUM_COLORS; i++)
2N/A            for (j = 0; j < NUM_COLORS; j++)
2N/A              init_pair(n++, color_map[j], color_map[i]);
2N/A
2N/A          use_color = 1;
2N/A        }
2N/A    }
2N/A
2N/A  return 0;
2N/A}
2N/A
2N/Astatic grub_err_t
2N/Agrub_ncurses_fini (struct grub_term_output *term __attribute__ ((unused)))
2N/A{
2N/A  endwin ();
2N/A  return 0;
2N/A}
2N/A
2N/A
2N/Astatic struct grub_term_input grub_ncurses_term_input =
2N/A  {
2N/A    .name = "console",
2N/A    .getkey = grub_ncurses_getkey,
2N/A  };
2N/A
2N/Astatic struct grub_term_output grub_ncurses_term_output =
2N/A  {
2N/A    .name = "console",
2N/A    .init = grub_ncurses_init,
2N/A    .fini = grub_ncurses_fini,
2N/A    .putchar = grub_ncurses_putchar,
2N/A    .getxy = grub_ncurses_getxy,
2N/A    .getwh = grub_ncurses_getwh,
2N/A    .gotoxy = grub_ncurses_gotoxy,
2N/A    .cls = grub_ncurses_cls,
2N/A    .setcolorstate = grub_ncurses_setcolorstate,
2N/A    .setcursor = grub_ncurses_setcursor,
2N/A    .refresh = grub_ncurses_refresh,
2N/A    .flags = GRUB_TERM_CODE_TYPE_ASCII
2N/A  };
2N/A
2N/Avoid
2N/Agrub_console_init (void)
2N/A{
2N/A  grub_term_register_output ("console", &grub_ncurses_term_output);
2N/A  grub_term_register_input ("console", &grub_ncurses_term_input);
2N/A}
2N/A
2N/Avoid
2N/Agrub_console_fini (void)
2N/A{
2N/A  grub_ncurses_fini (&grub_ncurses_term_output);
2N/A}