145 lines
3.1 KiB
C
145 lines
3.1 KiB
C
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#ifndef __HOS_MULTIBOOT_H__
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#define __HOS_MULTIBOOT_H__ __HOS_MULTIBOOT_H__
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/* The magic number for the Multiboot header. */
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#define MULTIBOOT_HEADER_MAGIC 0x1BADB002
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#define MB_HEADER_ALIGN_MODULES 0x01
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#define MB_HEADER_MEM_INFO 0x02
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#define MB_HEADER_VIDEO_INFO 0x04
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#define MB_HEADER_KLUDGE_OFFSETS 0x10000
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/* The magic number passed by a Multiboot-compliant boot loader. */
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#define MULTIBOOT_BOOTLOADER_MAGIC 0x2BADB002
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#define MB_BOOTLOADER_MEM_INFO 0x01
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#define MB_BOOTLOADER_BOOT_DEVICE 0x02
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#define MB_BOOTLOADER_COMMAND_LINE 0x04
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#define MB_BOOTLOADER_MODS 0x08
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#define MB_BOOTLOADER_AOUT 0x10
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#define MB_BOOTLOADER_ELF 0x20
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#define MB_BOOTLOADER_MMAP 0x40
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#define MB_BOOTLOADER_DRIVES 0x80
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#define MB_BOOTLOADER_CONFIG 0x0100
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#define MB_BOOTLOADER_APM 0x0200
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#define MB_BOOTLOADER_GRAPHICS 0x0400
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#define MB_DRIVE_MODE_CHS 0
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#define MB_DRIVE_MODE_LBA 1
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/* The Multiboot header. */
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typedef struct
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{
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unsigned int magic;
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unsigned int flags;
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unsigned int checksum;
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unsigned int header_addr;
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unsigned int load_addr;
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unsigned int load_end_addr;
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unsigned int bss_end_addr;
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unsigned int entry_addr;
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} mb_header_t;
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/* The symbol table for a.out. */
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typedef struct
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{
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unsigned int tabsize;
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unsigned int strsize;
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unsigned int addr;
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unsigned int reserved;
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} mb_aout_symbol_table_t;
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/* The section header table for ELF. */
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typedef struct
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{
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unsigned int num;
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unsigned int size;
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unsigned int addr;
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unsigned int shndx;
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} mb_elf_section_header_table_t;
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/* The Multiboot information. */
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typedef struct
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{
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unsigned int flags;
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unsigned int mem_lower;
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unsigned int mem_upper;
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unsigned int boot_device;
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unsigned int cmdline;
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unsigned int mods_count;
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unsigned int mods_addr;
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union
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{
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mb_aout_symbol_table_t aout_sym;
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mb_elf_section_header_table_t elf_sec;
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};
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unsigned int mmap_length;
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unsigned int mmap_addr;
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unsigned int drives_length;
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unsigned int drives_addr;
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unsigned int config_table;
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unsigned int bootloader_name;
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unsigned int apm_table;
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unsigned int vbe_control_info;
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unsigned int vbe_mode_info;
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unsigned short vbe_mode;
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unsigned short vbe_interface_seg;
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unsigned short vbe_interface_off;
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unsigned short vbe_interface_len;
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} mb_info_t;
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/* The module structure. */
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typedef struct
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{
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unsigned int mod_start;
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unsigned int mod_end;
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unsigned int string;
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unsigned int reserved;
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} mb_module_t;
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/* The memory map. Be careful that the offset 0 is base_addr_low, not size. */
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typedef struct
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{
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unsigned int size; //offset -4
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unsigned int base_addr_low; //offset 0
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unsigned int base_addr_high;
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unsigned int length_low;
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unsigned int length_high;
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unsigned int type;
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} mb_mmap_t;
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/* The drive structure */
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typedef struct
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{
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unsigned int size;
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unsigned char drive_number;
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unsigned char drive_mode;
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unsigned char drive_cylinders;
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unsigned char drive_heads;
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unsigned char drive_sectors;
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unsigned short drive_ports[1];
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} mb_drive_t;
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/* APM table structure */
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typedef struct
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{
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unsigned short version;
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unsigned short cseg;
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unsigned int offset;
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unsigned short cseg_16;
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unsigned short dseg;
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unsigned short flags;
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unsigned short cseg_len;
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unsigned short cseg_16_len;
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unsigned short dseg_len;
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} mb_apm_t;
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#endif
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