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

   1 /* console.c - console interface layer for U-Boot platforms */
   2 /*
   3  *  GRUB  --  GRand Unified Bootloader
   4  *  Copyright (C) 2013  Free Software Foundation, Inc.
   5  *
   6  *  GRUB is free software: you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation, either version 3 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  GRUB is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include <grub/term.h>
  21 #include <grub/misc.h>
  22 #include <grub/types.h>
  23 #include <grub/err.h>
  24 #include <grub/terminfo.h>
  25 #include <grub/uboot/uboot.h>
  26 #include <grub/uboot/console.h>
  27
  28 static void
  29 put (struct grub_term_output *term __attribute__ ((unused)), const int c)
  30 {
  31   grub_uboot_putc (c);
  32 }
  33
  34 static int
  35 readkey (struct grub_term_input *term __attribute__ ((unused)))
  36 {
  37   if (grub_uboot_tstc () > 0)
  38     return grub_uboot_getc ();
  39
  40   return -1;
  41 }
  42
  43 static void
  44 uboot_console_setcursor (struct grub_term_output *term
  45                          __attribute__ ((unused)), int on
  46                          __attribute__ ((unused)))
  47 {
  48   grub_terminfo_setcursor (term, on);
  49 }
  50
  51 static grub_err_t
  52 uboot_console_init_input (struct grub_term_input *term)
  53 {
  54   return grub_terminfo_input_init (term);
  55 }
  56
  57 extern struct grub_terminfo_output_state uboot_console_terminfo_output;
  58
  59
  60 static grub_err_t
  61 uboot_console_init_output (struct grub_term_output *term)
  62 {
  63   grub_terminfo_output_init (term);
  64
  65   return 0;
  66 }
  67
  68 struct grub_terminfo_input_state uboot_console_terminfo_input = {
  69   .readkey = readkey
  70 };
  71
  72 struct grub_terminfo_output_state uboot_console_terminfo_output = {
  73   .put = put,
  74   /* FIXME: In rare cases when console isn't serial,
  75      determine real width.  */
  76   .size = { 80, 24 }
  77 };
  78
  79 static struct grub_term_input uboot_console_term_input = {
  80   .name = "console",
  81   .init = uboot_console_init_input,
  82   .getkey = grub_terminfo_getkey,
  83   .data = &uboot_console_terminfo_input
  84 };
  85
  86 static struct grub_term_output uboot_console_term_output = {
  87   .name = "console",
  88   .init = uboot_console_init_output,
  89   .putchar = grub_terminfo_putchar,
  90   .getwh = grub_terminfo_getwh,
  91   .getxy = grub_terminfo_getxy,
  92   .gotoxy = grub_terminfo_gotoxy,
  93   .cls = grub_terminfo_cls,
  94   .setcolorstate = grub_terminfo_setcolorstate,
  95   .setcursor = uboot_console_setcursor,
  96   .flags = GRUB_TERM_CODE_TYPE_ASCII,
  97   .data = &uboot_console_terminfo_output,
  98   .progress_update_divisor = GRUB_PROGRESS_FAST
  99 };
 100
 101 void
 102 grub_console_init_early (void)
 103 {
 104   grub_term_register_input ("console", &uboot_console_term_input);
 105   grub_term_register_output ("console", &uboot_console_term_output);
 106 }
 107
 108
 109 /*
 110  * grub_console_init_lately():
 111  *   Initializes terminfo formatting by registering terminal type.
 112  *   Called after heap has been configured.
 113  *
 114  */
 115 void
 116 grub_console_init_lately (void)
 117 {
 118   const char *type;
 119
 120   /* See if explicitly set by U-Boot environment */
 121   type = grub_uboot_env_get ("grub_term");
 122   if (!type)
 123     type = "vt100";
 124
 125   grub_terminfo_init ();
 126   grub_terminfo_output_register (&uboot_console_term_output, type);
 127 }
 128
 129 void
 130 grub_console_fini (void)
 131 {
 132 }