arch/all-pc/boot/grub2-aros/grub-core/term/arc/console.c

   1 /*
   2  *  GRUB  --  GRand Unified Bootloader
   3  *  Copyright (C) 2011  Free Software Foundation, Inc.
   4  *
   5  *  GRUB is free software: you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation, either version 3 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  GRUB is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19 #include <grub/arc/arc.h>
  20 #include <grub/arc/console.h>
  21 #include <grub/term.h>
  22 #include <grub/terminfo.h>
  23
  24 /* FIXME: use unicode.  */
  25
  26 static int
  27 readkey (struct grub_term_input *term __attribute__ ((unused)))
  28 {
  29   unsigned long count;
  30   char chr;
  31
  32   if (GRUB_ARC_FIRMWARE_VECTOR->get_read_status (GRUB_ARC_STDIN))
  33     return -1;
  34
  35   if (GRUB_ARC_FIRMWARE_VECTOR->read (GRUB_ARC_STDIN, &chr, 1, &count))
  36     return -1;
  37   if (!count)
  38     return -1;
  39   return chr;
  40 }
  41
  42 static void
  43 put (struct grub_term_output *term __attribute__ ((unused)), const int c)
  44 {
  45   unsigned long count;
  46   char chr = c;
  47
  48   GRUB_ARC_FIRMWARE_VECTOR->write (GRUB_ARC_STDOUT, &chr, 1, &count);
  49 }
  50
  51 static struct grub_terminfo_output_state grub_console_terminfo_output;
  52
  53 static grub_err_t
  54 grub_console_init_output (struct grub_term_output *term)
  55 {
  56   struct grub_arc_display_status *info = NULL;
  57   if (GRUB_ARC_SYSTEM_PARAMETER_BLOCK->firmware_vector_length
  58       >= ((char *) (&GRUB_ARC_FIRMWARE_VECTOR->getdisplaystatus + 1)
  59           - (char *) GRUB_ARC_FIRMWARE_VECTOR)
  60       && GRUB_ARC_FIRMWARE_VECTOR->getdisplaystatus)
  61     info = GRUB_ARC_FIRMWARE_VECTOR->getdisplaystatus (GRUB_ARC_STDOUT);
  62   if (info)
  63     {
  64       grub_console_terminfo_output.width = info->w + 1;
  65       grub_console_terminfo_output.height = info->h + 1;
  66     }
  67   grub_terminfo_output_init (term);
  68
  69   return 0;
  70 }
  71
  72 static struct grub_terminfo_input_state grub_console_terminfo_input =
  73   {
  74     .readkey = readkey
  75   };
  76
  77 static struct grub_terminfo_output_state grub_console_terminfo_output =
  78   {
  79     .put = put,
  80     .width = 80,
  81     .height = 20
  82   };
  83
  84 static struct grub_term_input grub_console_term_input =
  85   {
  86     .name = "console",
  87     .init = grub_terminfo_input_init,
  88     .getkey = grub_terminfo_getkey,
  89     .data = &grub_console_terminfo_input
  90   };
  91
  92 static struct grub_term_output grub_console_term_output =
  93   {
  94     .name = "console",
  95     .init = grub_console_init_output,
  96     .putchar = grub_terminfo_putchar,
  97     .getxy = grub_terminfo_getxy,
  98     .getwh = grub_terminfo_getwh,
  99     .gotoxy = grub_terminfo_gotoxy,
 100     .cls = grub_terminfo_cls,
 101     .setcolorstate = grub_terminfo_setcolorstate,
 102     .setcursor = grub_terminfo_setcursor,
 103     .flags = GRUB_TERM_CODE_TYPE_ASCII,
 104     .data = &grub_console_terminfo_output,
 105     .normal_color = GRUB_TERM_DEFAULT_NORMAL_COLOR,
 106     .highlight_color = GRUB_TERM_DEFAULT_HIGHLIGHT_COLOR,
 107   };
 108
 109 void
 110 grub_console_init_early (void)
 111 {
 112   grub_term_register_input ("console", &grub_console_term_input);
 113   grub_term_register_output ("console", &grub_console_term_output);
 114 }
 115
 116 void
 117 grub_console_init_lately (void)
 118 {
 119   grub_terminfo_init ();
 120   grub_terminfo_output_register (&grub_console_term_output, "arc");
 121 }