#pragma once

#include "memory.h"
#include <stdint.h>

#define CMDLINE_MAX 32

struct mboot_tag {
	uint8_t valid; // if the tag at this location is set
	uint32_t type;
	uint32_t size;
	union {
		char cmdline[CMDLINE_MAX + 1];
		struct memory_map *memory_map;
		void *rootsdp;
	} data;
};

enum mboot_tag_type {
	MBOOT_CMDLINE = 0,
	MBOOT_MEMORYMAP = 6,
	MBOOT_XSDP = 14
};

struct mboot_info {
	uint32_t total_size;
	uint32_t reserved;
	struct mboot_tag tags[21];
};

/**
 * Loads the multi boot information
 * @param mboot_info - the pointer passed from multiboot2
 */
struct mboot_info mboot_load_info(void *mboot_info);

/**
 * Gets a tag from multiboot
 * @param type - the tag type
 * @returns NULL - tag not loaded
 * @returns tag - tag was loaded
 */
struct mboot_tag *mboot_get_tag(struct mboot_info *info, enum mboot_tag_type type);