arch/common/boot/grub2/commands/ieee1275/suspend.c

   1 /* suspend.c - command to suspend GRUB and return to Open Firmware  */
   2 /*
   3  *  GRUB  --  GRand Unified Bootloader
   4  *  Copyright (C) 2005,2007  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/normal.h>
  21 #include <grub/dl.h>
  22 #include <grub/misc.h>
  23 #include <grub/term.h>
  24 #include <grub/ieee1275/ieee1275.h>
  25
  26 static grub_err_t
  27 grub_cmd_suspend (struct grub_arg_list *state  __attribute__ ((unused)),
  28                   int argc __attribute__ ((unused)),
  29                   char **args __attribute__ ((unused)))
  30 {
  31   grub_printf ("Run 'go' to resume GRUB.\n");
  32   grub_ieee1275_enter ();
  33   grub_cls ();
  34   return 0;
  35 }
  36
  37 \f
  38 GRUB_MOD_INIT(ieee1275_suspend)
  39 {
  40   (void)mod;                    /* To stop warning. */
  41   grub_register_command ("suspend", grub_cmd_suspend, GRUB_COMMAND_FLAG_BOTH,
  42                          "suspend", "Return to Open Firmware prompt", 0);
  43 }
  44
  45 GRUB_MOD_FINI(ieee1275_suspend)
  46 {
  47   grub_unregister_command ("suspend");
  48 }