73a68bcb3a
the value returned by firmware is the maximal position, not diumension. (grub_terminfo_output_state): Use a more sane fallback.
121 lines
3.3 KiB
C
121 lines
3.3 KiB
C
/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2011 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/arc/arc.h>
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#include <grub/arc/console.h>
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#include <grub/term.h>
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#include <grub/terminfo.h>
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/* FIXME: use unicode. */
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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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unsigned long count;
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char chr;
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if (GRUB_ARC_FIRMWARE_VECTOR->get_read_status (GRUB_ARC_STDIN))
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return -1;
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if (GRUB_ARC_FIRMWARE_VECTOR->read (GRUB_ARC_STDIN, &chr, 1, &count))
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return -1;
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if (!count)
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return -1;
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return chr;
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}
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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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unsigned long count;
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char chr = c;
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GRUB_ARC_FIRMWARE_VECTOR->write (GRUB_ARC_STDOUT, &chr, 1, &count);
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}
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static struct grub_terminfo_output_state grub_console_terminfo_output;
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static grub_err_t
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grub_console_init_output (struct grub_term_output *term)
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{
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struct grub_arc_display_status *info = NULL;
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if (GRUB_ARC_SYSTEM_PARAMETER_BLOCK->firmware_vector_length
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>= ((char *) (&GRUB_ARC_FIRMWARE_VECTOR->getdisplaystatus + 1)
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- (char *) GRUB_ARC_FIRMWARE_VECTOR)
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&& GRUB_ARC_FIRMWARE_VECTOR->getdisplaystatus)
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info = GRUB_ARC_FIRMWARE_VECTOR->getdisplaystatus (GRUB_ARC_STDOUT);
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if (info)
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{
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grub_console_terminfo_output.width = info->w + 1;
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grub_console_terminfo_output.height = info->h + 1;
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}
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grub_terminfo_output_init (term);
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return 0;
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}
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static struct grub_terminfo_input_state grub_console_terminfo_input =
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{
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.readkey = readkey
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};
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static struct grub_terminfo_output_state grub_console_terminfo_output =
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{
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.put = put,
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.width = 80,
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.height = 20
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};
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static struct grub_term_input grub_console_term_input =
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{
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.name = "console",
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.init = grub_terminfo_input_init,
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.getkey = grub_terminfo_getkey,
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.data = &grub_console_terminfo_input
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};
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static struct grub_term_output grub_console_term_output =
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{
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.name = "console",
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.init = grub_console_init_output,
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.putchar = grub_terminfo_putchar,
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.getxy = grub_terminfo_getxy,
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.getwh = grub_terminfo_getwh,
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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 = grub_terminfo_setcursor,
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.flags = GRUB_TERM_CODE_TYPE_ASCII,
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.data = &grub_console_terminfo_output,
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.normal_color = GRUB_TERM_DEFAULT_NORMAL_COLOR,
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.highlight_color = GRUB_TERM_DEFAULT_HIGHLIGHT_COLOR,
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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", &grub_console_term_input);
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grub_term_register_output ("console", &grub_console_term_output);
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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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grub_terminfo_init ();
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grub_terminfo_output_register (&grub_console_term_output, "arc");
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}
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