banan-os/kernel/include/kernel/multiboot.h

58 lines
1.2 KiB
C

#pragma once
#include <stdint.h>
#define MULTIBOOT_FLAGS_FRAMEBUFFER (1 << 12)
#define MULTIBOOT_FRAMEBUFFER_TYPE_GRAPHICS 1
#define MULTIBOOT_FRAMEBUFFER_TYPE_TEXT 2
struct framebuffer_info_t
{
uint64_t addr;
uint32_t pitch;
uint32_t width;
uint32_t height;
uint8_t bpp;
uint8_t type;
uint8_t color_info[6];
};
struct multiboot_memory_map_t
{
uint32_t size;
uint64_t base_addr;
uint64_t length;
uint32_t type;
} __attribute__((packed));
// https://www.gnu.org/software/grub/manual/multiboot/multiboot.html#Boot-information-format
struct multiboot_info_t
{
uint32_t flags;
uint32_t mem_lower;
uint32_t mem_upper;
uint32_t boot_device;
uint32_t cmdline;
uint32_t mods_count;
uint32_t mods_addr;
uint32_t syms[4];
uint32_t mmap_length;
uint32_t mmap_addr;
uint32_t drives_length;
uint32_t drives_addr;
uint32_t config_table;
uint32_t boot_loader_name;
uint32_t apm_table;
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;
framebuffer_info_t framebuffer;
};
extern "C" multiboot_info_t* g_multiboot_info;
extern "C" uint32_t g_multiboot_magic;