#pragma once

#include <stdint.h>

typedef struct{
    uint32_t size;
    uint32_t addr_l;
    uint32_t addr_h;
    uint32_t len_l;
    uint32_t len_h;
    uint32_t type;
} __attribute__((packed)) multiboot_memory_map_t;

typedef struct{
    uint32_t tabsize;
    uint32_t strsize;
    uint32_t addr;
    uint32_t reserved;
} multiboot_aout_symbol_table_t;

typedef struct{
    uint32_t num;
    uint32_t size;
    uint32_t addr;
    uint32_t shndx;
} multiboot_elf_section_header_table_t;

typedef struct{
    uint32_t start;
    uint32_t end;
    uint32_t cmdline;
    uint32_t pad; // Padding, alwys zero
} multiboot_module_t;

typedef struct{
    /* Multiboot info version number */
    uint32_t flags;

    /* Available memory from BIOS */
    uint32_t mem_lower;
    uint32_t mem_upper;

    /* "root" partition */
    uint32_t boot_device;

    /* Kernel command line */
    uint32_t cmdline;

    /* Boot-Module list */
    uint32_t mods_count;
    uint32_t mods_addr;

    union{
        multiboot_aout_symbol_table_t aout_sym;
        multiboot_elf_section_header_table_t elf_sec;
    } u;

    /* Memory Mapping buffer */
    uint32_t mmap_length;
    uint32_t mmap_addr;

    /* Drive Info buffer */
    uint32_t drives_length;
    uint32_t drives_addr;

    /* ROM configuration table */
    uint32_t config_table;

    /* Boot Loader Name */
    uint32_t boot_loader_name;

    /* APM table */
    uint32_t apm_table;

    /* Video */
    uint32_t vbe_control_info;
    uint32_t vbe_mode_info;
    uint16_t vbe_mode;
    uint16_t vbe_interface_seg;
    uint16_t vbe_interface_off;
    uint16_t vbe_interface_len;

    uint64_t framebuffer_addr; // FIXME: This may fail, as we are not in 64 bit (long) mode
    uint32_t framebuffer_pitch;
    uint32_t framebuffer_width;
    uint32_t framebuffer_height;
    uint8_t framebuffer_bpp;
    uint8_t framebuffer_type;
    union{
        struct{
            uint32_t framebuffer_palette_addr;
            uint16_t framebuffer_palette_num_colors;
        };
        struct{
            uint8_t framebuffer_red_field_position;
            uint8_t framebuffer_red_mask_size;
            uint8_t framebuffer_green_field_position;
            uint8_t framebuffer_green_mask_size;
            uint8_t framebuffer_blue_field_position;
            uint8_t framebuffer_blue_mask_size;
        };
    };
} __attribute__((packed)) multiboot_info_t;