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#ifndef MULTIBOOT2_H
#define MULTIBOOT2_H
#include <types.h>
#include <libk/list.h>
struct mb2_tag_header {
uint32_t type;
uint32_t size;
} __attribute__((packed, aligned(8)));
typedef struct mb2_tag_header mb2_tag_header;
struct mb2_tag_fb {
uint32_t type;
uint32_t size;
uint64_t framebuffer_addr;
uint32_t framebuffer_pitch;
uint32_t framebuffer_width;
uint32_t framebuffer_height;
uint8_t framebuffer_bpp;
uint8_t framebuffer_type;
} __attribute__((packed, aligned(8)));
typedef struct mb2_tag_fb mb2_tag_fb;
struct mb2_tag_mmap {
uint32_t type;
uint32_t size;
uint32_t entry_size;
uint32_t entry_version;
};
typedef struct mb2_tag_mmap mb2_tag_mmap;
struct mb2_tag_mmap_entry {
uint64_t base_addr;
uint64_t length;
uint32_t type;
uint32_t reserved;
};
typedef struct mb2_tag_mmap_entry mb2_tag_mmap_entry;
struct mb2_tag_module {
uint32_t type;
uint32_t size;
uint32_t mod_start;
uint32_t mod_end;
char* name;
};
typedef struct mb2_tag_module mb2_tag_module;
struct mmap_t {
mb2_tag_mmap_entry mmap_entry;
list_t list;
};
typedef struct mmap_t mmap_t;
extern mmap_t mmap;
// multiboot2 magic check
#define MB2_MAGIC 0x36D76289
// multiboot2 tag
#define MB2_TAG_END 0
#define MB2_TAG_CMDLINE 1
#define MB2_TAG_BOOTLOADER 2
#define MB2_TAG_MODULE 3
#define MB2_TAG_MEM 4
#define MB2_TAG_BIOS 5
#define MB2_TAG_MMAP 6
#define MB2_TAG_VBE 7
#define MB2_TAG_FB 8
extern mb2_tag_module* ext2_module;
void read_mb2(mb2_tag_header* multiboot_bootinfo, uint32_t multiboot_magic);
void init_fb(mb2_tag_fb* tag_fb);
void init_mmap(mb2_tag_mmap* tag_mmap);
void init_module(mb2_tag_module* tag_module);
#endif
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