cc6d3df39e
* kern/ieee1275/ieee1275.c (grub_ieee1275_instance_to_path): Rename `instance_to_package_args' to `instance_to_path_args'. * kern/powerpc/ieee1275/init.c (grub_machine_init): Use `grub_ieee1275_chosen'. * term/ieee1275/ofconsole.c (grub_ofconsole_init): Call `grub_ieee1275_interpret'.
383 lines
8.1 KiB
C
383 lines
8.1 KiB
C
/* ofconsole.c -- Open Firmware console for GRUB. */
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2003, 2004, 2005 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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#include <grub/term.h>
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#include <grub/types.h>
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#include <grub/misc.h>
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#include <grub/mm.h>
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#include <grub/machine/console.h>
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#include <grub/ieee1275/ieee1275.h>
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static grub_ieee1275_ihandle_t stdout_ihandle;
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static grub_ieee1275_ihandle_t stdin_ihandle;
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static grub_uint8_t grub_ofconsole_width;
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static grub_uint8_t grub_ofconsole_height;
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static int grub_curr_x;
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static int grub_curr_y;
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static int grub_keybuf;
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static int grub_buflen;
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struct color
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{
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int red;
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int green;
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int blue;
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};
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#define MAX 0xff
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static struct color colors[8] =
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{
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{ 0, 0, 0},
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{ MAX, 0, 0},
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{ 0, MAX, 0},
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{ MAX, MAX, 0},
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{ 0, 0, MAX},
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{ MAX, 0, MAX},
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{ 0, MAX, MAX},
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{ MAX, MAX, MAX}
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};
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static int fgcolor = 7;
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static int bgcolor = 0;
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/* Write control characters to the console. */
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static void
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grub_ofconsole_writeesc (const char *str)
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{
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while (*str)
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{
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char chr = *(str++);
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grub_ieee1275_write (stdout_ihandle, &chr, 1, 0);
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}
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}
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static void
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grub_ofconsole_putchar (grub_uint32_t c)
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{
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char chr = c;
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if (c == '\n')
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{
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grub_curr_y++;
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grub_curr_x = 0;
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}
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else
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{
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grub_curr_x++;
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if (grub_curr_x > grub_ofconsole_width)
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grub_putcode ('\n');
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}
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grub_ieee1275_write (stdout_ihandle, &chr, 1, 0);
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}
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static grub_ssize_t
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grub_ofconsole_getcharwidth (grub_uint32_t c __attribute__((unused)))
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{
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return 1;
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}
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static void
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grub_ofconsole_setcolorstate (grub_term_color_state state)
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{
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char setcol[20];
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int fg;
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int bg;
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switch (state)
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{
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case GRUB_TERM_COLOR_STANDARD:
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case GRUB_TERM_COLOR_NORMAL:
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fg = fgcolor;
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bg = bgcolor;
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break;
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case GRUB_TERM_COLOR_HIGHLIGHT:
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fg = bgcolor;
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bg = fgcolor;
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break;
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default:
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return;
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}
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grub_sprintf (setcol, "\e[3%dm\e[4%dm", fg, bg);
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grub_ofconsole_writeesc (setcol);
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}
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static void
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grub_ofconsole_setcolor (grub_uint8_t normal_color,
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grub_uint8_t highlight_color)
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{
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fgcolor = normal_color;
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bgcolor = highlight_color;
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}
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static int
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grub_ofconsole_readkey (int *key)
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{
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char c;
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grub_ssize_t actual = 0;
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grub_ieee1275_read (stdin_ihandle, &c, 1, &actual);
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if (actual > 0 && c == '\e')
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{
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grub_ieee1275_read (stdin_ihandle, &c, 1, &actual);
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if (actual <= 0)
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{
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*key = '\e';
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return 1;
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}
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if (c != 91)
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return 0;
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grub_ieee1275_read (stdin_ihandle, &c, 1, &actual);
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if (actual <= 0)
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return 0;
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switch (c)
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{
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case 65:
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/* Up: Ctrl-p. */
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c = 16;
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break;
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case 66:
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/* Down: Ctrl-n. */
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c = 14;
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break;
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case 67:
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/* Right: Ctrl-f. */
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c = 6;
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break;
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case 68:
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/* Left: Ctrl-b. */
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c = 2;
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break;
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}
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}
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*key = c;
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return actual > 0;
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}
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static int
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grub_ofconsole_checkkey (void)
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{
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int key;
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int read;
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if (grub_buflen)
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return 1;
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read = grub_ofconsole_readkey (&key);
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if (read)
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{
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grub_keybuf = key;
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grub_buflen = 1;
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return 1;
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}
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return -1;
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}
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static int
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grub_ofconsole_getkey (void)
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{
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int key;
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if (grub_buflen)
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{
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grub_buflen =0;
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return grub_keybuf;
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}
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while (! grub_ofconsole_readkey (&key));
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return key;
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}
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static grub_uint16_t
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grub_ofconsole_getxy (void)
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{
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return ((grub_curr_x - 1) << 8) | grub_curr_y;
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}
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static grub_uint16_t
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grub_ofconsole_getwh (void)
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{
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grub_ieee1275_ihandle_t options;
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char *val;
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grub_ssize_t lval;
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if (grub_ofconsole_width && grub_ofconsole_height)
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return (grub_ofconsole_width << 8) | grub_ofconsole_height;
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if (! grub_ieee1275_finddevice ("/options", &options)
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&& options != (grub_ieee1275_ihandle_t) -1)
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{
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if (! grub_ieee1275_get_property_length (options, "screen-#columns",
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&lval) && lval != -1)
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{
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val = grub_malloc (lval);
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if (val)
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{
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if (! grub_ieee1275_get_property (options, "screen-#columns",
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val, lval, 0))
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grub_ofconsole_width = (grub_uint8_t) grub_strtoul (val, 0, 10);
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grub_free (val);
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}
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}
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if (! grub_ieee1275_get_property_length (options, "screen-#rows",
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&lval) && lval != -1)
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{
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val = grub_malloc (lval);
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if (val)
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{
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if (! grub_ieee1275_get_property (options, "screen-#rows",
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val, lval, 0))
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grub_ofconsole_height = (grub_uint8_t) grub_strtoul (val, 0, 10);
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grub_free (val);
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}
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}
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}
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/* Use a small console by default. */
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if (! grub_ofconsole_width)
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grub_ofconsole_width = 80;
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if (! grub_ofconsole_height)
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grub_ofconsole_height = 24;
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return (grub_ofconsole_width << 8) | grub_ofconsole_height;
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}
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static void
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grub_ofconsole_gotoxy (grub_uint8_t x, grub_uint8_t y)
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{
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char s[11]; /* 5 + 3 + 3. */
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grub_curr_x = x;
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grub_curr_y = y;
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grub_sprintf (s, "\e[%d;%dH", y + 1, x + 1);
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grub_ofconsole_writeesc (s);
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}
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static void
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grub_ofconsole_cls (void)
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{
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/* Clear the screen. Using serial console, screen(1) only recognizes the
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* ANSI escape sequence. Using video console, Apple Open Firmware (version
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* 3.1.1) only recognizes the literal ^L. So use both. */
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grub_ofconsole_writeesc (" \e[2J");
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grub_gotoxy (0, 0);
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}
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static void
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grub_ofconsole_setcursor (int on __attribute ((unused)))
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{
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/* XXX: Not supported. */
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}
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static void
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grub_ofconsole_refresh (void)
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{
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/* Do nothing, the current console state is ok. */
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}
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static grub_err_t
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grub_ofconsole_init (void)
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{
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unsigned char data[4];
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grub_ssize_t actual;
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int col;
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/* The latest PowerMacs don't actually initialize the screen for us, so we
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* use this trick to re-open the output device. */
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grub_ieee1275_interpret ("output-device output", 0);
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if (grub_ieee1275_get_property (grub_ieee1275_chosen, "stdout", data,
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sizeof data, &actual)
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|| actual != sizeof data)
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return grub_error (GRUB_ERR_UNKNOWN_DEVICE, "Cannot find stdout");
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stdout_ihandle = grub_ieee1275_decode_int_4 (data);
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if (grub_ieee1275_get_property (grub_ieee1275_chosen, "stdin", data,
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sizeof data, &actual)
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|| actual != sizeof data)
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return grub_error (GRUB_ERR_UNKNOWN_DEVICE, "Cannot find stdin");
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stdin_ihandle = grub_ieee1275_decode_int_4 (data);
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/* Initialize colors. */
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for (col = 0; col < 7; col++)
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grub_ieee1275_set_color (stdout_ihandle, col, colors[col].red,
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colors[col].green, colors[col].blue);
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/* Set the right fg and bg colors. */
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grub_ofconsole_setcolorstate (GRUB_TERM_COLOR_NORMAL);
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return 0;
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}
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static grub_err_t
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grub_ofconsole_fini (void)
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{
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return 0;
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}
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static struct grub_term grub_ofconsole_term =
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{
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.name = "ofconsole",
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.init = grub_ofconsole_init,
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.fini = grub_ofconsole_fini,
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.putchar = grub_ofconsole_putchar,
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.getcharwidth = grub_ofconsole_getcharwidth,
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.checkkey = grub_ofconsole_checkkey,
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.getkey = grub_ofconsole_getkey,
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.getxy = grub_ofconsole_getxy,
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.getwh = grub_ofconsole_getwh,
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.gotoxy = grub_ofconsole_gotoxy,
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.cls = grub_ofconsole_cls,
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.setcolorstate = grub_ofconsole_setcolorstate,
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.setcolor = grub_ofconsole_setcolor,
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.setcursor = grub_ofconsole_setcursor,
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.refresh = grub_ofconsole_refresh,
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.flags = 0,
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.next = 0
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};
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void
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grub_console_init (void)
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{
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grub_term_register (&grub_ofconsole_term);
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grub_term_set_current (&grub_ofconsole_term);
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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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grub_term_unregister (&grub_ofconsole_term);
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}
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