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os-k/include/init/mboot.h

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//----------------------------------------------------------------------------//
// GNU GPL OS/K //
// //
// Desc: multiboot.h - Multiboot header file. //
// //
// //
// Copyright © 1999,2003,2007-2010 Free Software Foundation, Inc. //
// Copyright © 2018-2020 The OS/K Team //
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// //
// This file is part of OS/K. //
// //
// OS/K 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 //
// any later version. //
// //
// OS/K 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 OS/K. If not, see <https://www.gnu.org/licenses/>. //
//----------------------------------------------------------------------------//
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#ifndef _KERNEL_H
#include <kernel.h>
#endif
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#ifndef MULTIBOOT_HEADER
#define MULTIBOOT_HEADER 1
/* How many bytes from the start of the file we search for the header. */
#define MULTIBOOT_SEARCH 8192
#define MULTIBOOT_HEADER_ALIGN 4
/* The magic field should contain this. */
#define MULTIBOOT_HEADER_MAGIC 0x1BADB002
/* This should be in %eax. */
#define MULTIBOOT_BOOTLOADER_MAGIC 0x2BADB002
/* Alignment of multiboot modules. */
#define MULTIBOOT_MOD_ALIGN 0x00001000
/* Alignment of the multiboot info structure. */
#define MULTIBOOT_INFO_ALIGN 0x00000004
/* Flags set in the 'flags' member of the multiboot header. */
/* Align all boot modules on i386 page (4KB) boundaries. */
#define MULTIBOOT_PAGE_ALIGN 0x00000001
/* Must pass memory information to OS. */
#define MULTIBOOT_MEMORY_INFO 0x00000002
/* Must pass video information to OS. */
#define MULTIBOOT_VIDEO_MODE 0x00000004
/* This flag indicates the use of the address fields in the header. */
#define MULTIBOOT_AOUT_KLUDGE 0x00010000
#define MULTIBOOT_INFO_MEMORY 0x00000001
/* is there a boot device set? */
#define MULTIBOOT_INFO_BOOTDEV 0x00000002
/* is the command-line defined? */
#define MULTIBOOT_INFO_CMDLINE 0x00000004
/* are there modules to do something with? */
#define MULTIBOOT_INFO_MODS 0x00000008
/* These next two are mutually exclusive */
/* is there a symbol table loaded? */
#define MULTIBOOT_INFO_AOUT_SYMS 0x00000010
/* is there an ELF section header table? */
#define MULTIBOOT_INFO_ELF_SHDR 0x00000020
/* is there a full memory map? */
#define MULTIBOOT_INFO_MEM_MAP 0x00000040
/* Is there drive info? */
#define MULTIBOOT_INFO_DRIVE_INFO 0x00000080
/* Is there a config table? */
#define MULTIBOOT_INFO_CONFIG_TABLE 0x00000100
/* Is there a boot loader name? */
#define MULTIBOOT_INFO_BOOT_LOADER_NAME 0x00000200
/* Is there a APM table? */
#define MULTIBOOT_INFO_APM_TABLE 0x00000400
/* Is there video information? */
#define MULTIBOOT_INFO_VBE_INFO 0x00000800
#define MULTIBOOT_INFO_FRAMEBUFFER_INFO 0x00001000
#ifndef ASM_FILE
typedef unsigned char uchar;
typedef unsigned short ushort;
typedef unsigned int uint;
typedef unsigned long ulong;
struct multiboot_header
{
/* Must be MULTIBOOT_MAGIC - see above. */
uint magic;
/* Feature flags. */
uint flags;
/* The above fields plus this one must equal 0 mod 2^32. */
uint checksum;
/* These are only valid if MULTIBOOT_AOUT_KLUDGE is set. */
uint header_addr;
uint load_addr;
uint load_end_addr;
uint bss_end_addr;
uint entry_addr;
/* These are only valid if MULTIBOOT_VIDEO_MODE is set. */
uint mode_type;
uint width;
uint height;
uint depth;
};
/* The symbol table for a.out. */
struct multiboot_aout_symbol_table
{
uint tabsize;
uint strsize;
uint addr;
uint reserved;
};
typedef struct multiboot_aout_symbol_table multiboot_aout_symbol_table_t;
/* The section header table for ELF. */
struct multiboot_elf_section_header_table
{
uint num;
uint size;
uint addr;
uint shndx;
};
typedef struct multiboot_elf_section_header_table
multiboot_elf_section_header_table_t;
struct multiboot_info
{
/* Multiboot info version number */
uint flags;
/* Available memory from BIOS */
uint mem_lower;
uint mem_upper;
/* "root" partition */
uint boot_device;
/* Kernel command line */
uint cmdline;
/* Boot-Module list */
uint mods_count;
uint mods_addr;
union
{
multiboot_aout_symbol_table_t aout_sym;
multiboot_elf_section_header_table_t elf_sec;
} u;
/* Memory Mapping buffer */
uint mmap_length;
uint mmap_addr;
/* Drive Info buffer */
uint drives_length;
uint drives_addr;
/* ROM configuration table */
uint config_table;
/* Boot Loader Name */
uint boot_loader_name;
/* APM table */
uint apm_table;
/* Video */
uint vbe_control_info;
uint vbe_mode_info;
ushort vbe_mode;
ushort vbe_interface_seg;
ushort vbe_interface_off;
ushort vbe_interface_len;
ulong framebuffer_addr;
uint framebuffer_pitch;
uint framebuffer_width;
uint framebuffer_height;
uchar framebuffer_bpp;
#define MULTIBOOT_FRAMEBUFFER_TYPE_INDEXED 0
#define MULTIBOOT_FRAMEBUFFER_TYPE_RGB 1
#define MULTIBOOT_FRAMEBUFFER_TYPE_EGA_TEXT 2
uchar framebuffer_type;
union
{
struct
{
uint framebuffer_palette_addr;
ushort framebuffer_palette_num_colors;
};
struct
{
uchar framebuffer_red_field_position;
uchar framebuffer_red_mask_size;
uchar framebuffer_green_field_position;
uchar framebuffer_green_mask_size;
uchar framebuffer_blue_field_position;
uchar framebuffer_blue_mask_size;
};
};
};
typedef struct multiboot_info multiboot_info_t;
struct multiboot_color
{
uchar red;
uchar green;
uchar blue;
};
struct multiboot_mmap_entry
{
uint size;
uint addr_low;
uint addr_high;
uint len_low;
uint len_high;
uint type;
} __attribute__((packed)) __attribute__((aligned (4)));
typedef struct multiboot_mmap_entry multiboot_memory_map_t;
struct multiboot_mod_list
{
/* the memory used goes from bytes 'mod_start' to 'mod_end-1' inclusive */
uint mod_start;
uint mod_end;
/* Module command line */
uint cmdline;
/* padding to take it to 16 bytes (must be zero) */
uint pad;
};
typedef struct multiboot_mod_list multiboot_module_t;
/* APM BIOS info. */
struct multiboot_apm_info
{
ushort version;
ushort cseg;
uint offset;
ushort cseg_16;
ushort dseg;
ushort flags;
ushort cseg_len;
ushort cseg_16_len;
ushort dseg_len;
};
#endif /* ! ASM_FILE */
#endif /* ! MULTIBOOT_HEADER */