ladybird/Kernel/Multiboot.h
Andreas Kling 94ca55cefd Meta: Add license header to source files
As suggested by Joshua, this commit adds the 2-clause BSD license as a
comment block to the top of every source file.

For the first pass, I've just added myself for simplicity. I encourage
everyone to add themselves as copyright holders of any file they've
added or modified in some significant way. If I've added myself in
error somewhere, feel free to replace it with the appropriate copyright
holder instead.

Going forward, all new source files should include a license header.
2020-01-18 09:45:54 +01:00

138 lines
3.8 KiB
C

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include <AK/Types.h>
struct multiboot_aout_symbol_table {
u32 tabsize;
u32 strsize;
u32 addr;
u32 reserved;
};
typedef struct multiboot_aout_symbol_table multiboot_aout_symbol_table_t;
struct multiboot_elf_section_header_table {
u32 num;
u32 size;
u32 addr;
u32 shndx;
};
typedef struct multiboot_elf_section_header_table multiboot_elf_section_header_table_t;
#define MULTIBOOT_MEMORY_AVAILABLE 1
#define MULTIBOOT_MEMORY_RESERVED 2
#define MULTIBOOT_MEMORY_ACPI_RECLAIMABLE 3
#define MULTIBOOT_MEMORY_NVS 4
#define MULTIBOOT_MEMORY_BADRAM 5
struct multiboot_mmap_entry {
u32 size;
u64 addr;
u64 len;
u32 type;
} __attribute__((packed));
typedef struct multiboot_mmap_entry multiboot_memory_map_t;
struct multiboot_info {
// Multiboot info version number.
u32 flags;
// Available memory from BIOS.
u32 mem_lower;
u32 mem_upper;
// "root" partition.
u32 boot_device;
// Kernel command line.
u32 cmdline;
// Boot-Module list.
u32 mods_count;
u32 mods_addr;
union {
multiboot_aout_symbol_table_t aout_sym;
multiboot_elf_section_header_table_t elf_sec;
} u;
// Memory Mapping buffer.
u32 mmap_length;
u32 mmap_addr;
// Drive Info buffer.
u32 drives_length;
u32 drives_addr;
// ROM configuration table.
u32 config_table;
// Boot Loader Name.
u32 boot_loader_name;
// APM table.
u32 apm_table;
// Video.
u32 vbe_control_info;
u32 vbe_mode_info;
u16 vbe_mode;
u16 vbe_interface_seg;
u16 vbe_interface_off;
u16 vbe_interface_len;
u64 framebuffer_addr;
u32 framebuffer_pitch;
u32 framebuffer_width;
u32 framebuffer_height;
u8 framebuffer_bpp;
#define MULTIBOOT_FRAMEBUFFER_TYPE_INDEXED 0
#define MULTIBOOT_FRAMEBUFFER_TYPE_RGB 1
#define MULTIBOOT_FRAMEBUFFER_TYPE_EGA_TEXT 2
u8 framebuffer_type;
union {
struct
{
u32 framebuffer_palette_addr;
u16 framebuffer_palette_num_colors;
};
struct
{
u8 framebuffer_red_field_position;
u8 framebuffer_red_mask_size;
u8 framebuffer_green_field_position;
u8 framebuffer_green_mask_size;
u8 framebuffer_blue_field_position;
u8 framebuffer_blue_mask_size;
};
};
};
typedef struct multiboot_info multiboot_info_t;
extern "C" multiboot_info_t* multiboot_info_ptr;