| /* |
| * GRUB -- GRand Unified Bootloader |
| * Copyright (C) 2002,2005,2007,2008 Free Software Foundation, Inc. |
| * |
| * GRUB is free software: you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation, either version 3 of the License, or |
| * (at your option) any later version. |
| * |
| * GRUB is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with GRUB. If not, see <http://www.gnu.org/licenses/>. |
| */ |
| |
| #ifndef GRUB_BIOSDISK_MACHINE_HEADER |
| #define GRUB_BIOSDISK_MACHINE_HEADER 1 |
| |
| #include <grub/symbol.h> |
| #include <grub/types.h> |
| |
| #define GRUB_BIOSDISK_FLAG_LBA 1 |
| #define GRUB_BIOSDISK_FLAG_CDROM 2 |
| |
| #define GRUB_BIOSDISK_CDTYPE_NO_EMUL 0 |
| #define GRUB_BIOSDISK_CDTYPE_1_2_M 1 |
| #define GRUB_BIOSDISK_CDTYPE_1_44_M 2 |
| #define GRUB_BIOSDISK_CDTYPE_2_88_M 3 |
| #define GRUB_BIOSDISK_CDTYPE_HARDDISK 4 |
| |
| #define GRUB_BIOSDISK_CDTYPE_MASK 0xF |
| |
| struct grub_biosdisk_data |
| { |
| int drive; |
| unsigned long cylinders; |
| unsigned long heads; |
| unsigned long sectors; |
| unsigned long flags; |
| }; |
| |
| /* Drive Parameters. */ |
| struct grub_biosdisk_drp |
| { |
| grub_uint16_t size; |
| grub_uint16_t flags; |
| grub_uint32_t cylinders; |
| grub_uint32_t heads; |
| grub_uint32_t sectors; |
| grub_uint64_t total_sectors; |
| grub_uint16_t bytes_per_sector; |
| /* ver 2.0 or higher */ |
| |
| union |
| { |
| grub_uint32_t EDD_configuration_parameters; |
| |
| /* Pointer to the Device Parameter Table Extension (ver 3.0+). */ |
| grub_uint32_t dpte_pointer; |
| }; |
| |
| /* ver 3.0 or higher */ |
| grub_uint16_t signature_dpi; |
| grub_uint8_t length_dpi; |
| grub_uint8_t reserved[3]; |
| grub_uint8_t name_of_host_bus[4]; |
| grub_uint8_t name_of_interface_type[8]; |
| grub_uint8_t interface_path[8]; |
| grub_uint8_t device_path[16]; |
| grub_uint8_t reserved2; |
| grub_uint8_t checksum; |
| |
| /* XXX: This is necessary, because the BIOS of Thinkpad X20 |
| writes a garbage to the tail of drive parameters, |
| regardless of a size specified in a caller. */ |
| grub_uint8_t dummy[16]; |
| } GRUB_PACKED; |
| |
| struct grub_biosdisk_cdrp |
| { |
| grub_uint8_t size; |
| grub_uint8_t media_type; |
| grub_uint8_t drive_no; |
| grub_uint8_t controller_no; |
| grub_uint32_t image_lba; |
| grub_uint16_t device_spec; |
| grub_uint16_t cache_seg; |
| grub_uint16_t load_seg; |
| grub_uint16_t length_sec512; |
| grub_uint8_t cylinders; |
| grub_uint8_t sectors; |
| grub_uint8_t heads; |
| grub_uint8_t dummy[16]; |
| } GRUB_PACKED; |
| |
| /* Disk Address Packet. */ |
| struct grub_biosdisk_dap |
| { |
| grub_uint8_t length; |
| grub_uint8_t reserved; |
| grub_uint16_t blocks; |
| grub_uint32_t buffer; |
| grub_uint64_t block; |
| } GRUB_PACKED; |
| |
| #endif /* ! GRUB_BIOSDISK_MACHINE_HEADER */ |