arch/all-pc/boot/grub2-aros/include/grub/mips/loongson/ec.h

   1 /*
   2  *  GRUB  --  GRand Unified Bootloader
   3  *  Copyright (C) 2010  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 #ifndef GRUB_EC_MACHINE_HEADER
  20 #define GRUB_EC_MACHINE_HEADER  1
  21
  22 #include <grub/types.h>
  23 #include <grub/cpu/io.h>
  24 #include <grub/pci.h>
  25
  26 #define GRUB_MACHINE_EC_MAGIC_PORT1 0x381
  27 #define GRUB_MACHINE_EC_MAGIC_PORT2 0x382
  28 #define GRUB_MACHINE_EC_DATA_PORT 0x383
  29
  30 #define GRUB_MACHINE_EC_MAGIC_VAL1 0xf4
  31 #define GRUB_MACHINE_EC_MAGIC_VAL2 0xec
  32
  33 #define GRUB_MACHINE_EC_COMMAND_REBOOT 1
  34
  35 static inline void
  36 grub_write_ec (grub_uint8_t value)
  37 {
  38   grub_outb (GRUB_MACHINE_EC_MAGIC_VAL1,
  39              GRUB_MACHINE_PCI_IO_BASE + GRUB_MACHINE_EC_MAGIC_PORT1);
  40   grub_outb (GRUB_MACHINE_EC_MAGIC_VAL2,
  41              GRUB_MACHINE_PCI_IO_BASE + GRUB_MACHINE_EC_MAGIC_PORT2);
  42   grub_outb (value, GRUB_MACHINE_PCI_IO_BASE + GRUB_MACHINE_EC_DATA_PORT);
  43 }
  44
  45 #endif