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https://github.com/johndoe6345789/MetalOS.git
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99 lines
2.8 KiB
C
99 lines
2.8 KiB
C
#ifndef METALOS_BOOTLOADER_EFI_H
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#define METALOS_BOOTLOADER_EFI_H
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#include <stdint.h>
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// Basic UEFI types
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typedef uint64_t EFI_STATUS;
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typedef void* EFI_HANDLE;
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typedef uint64_t UINTN;
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typedef uint16_t CHAR16;
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// EFI Status codes
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#define EFI_SUCCESS 0
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#define EFI_LOAD_ERROR 1
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#define EFI_INVALID_PARAMETER 2
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#define EFI_UNSUPPORTED 3
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#define EFI_BUFFER_TOO_SMALL 5
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#define EFI_NOT_READY 6
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#define EFI_NOT_FOUND 14
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// EFI Memory types
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#define EfiReservedMemoryType 0
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#define EfiLoaderCode 1
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#define EfiLoaderData 2
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#define EfiBootServicesCode 3
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#define EfiBootServicesData 4
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#define EfiRuntimeServicesCode 5
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#define EfiRuntimeServicesData 6
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#define EfiConventionalMemory 7
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#define EfiUnusableMemory 8
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#define EfiACPIReclaimMemory 9
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#define EfiACPIMemoryNVS 10
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#define EfiMemoryMappedIO 11
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#define EfiMemoryMappedIOPortSpace 12
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#define EfiPalCode 13
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#define EfiPersistentMemory 14
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typedef struct {
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uint32_t Type;
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uint64_t PhysicalStart;
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uint64_t VirtualStart;
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uint64_t NumberOfPages;
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uint64_t Attribute;
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} EFI_MEMORY_DESCRIPTOR;
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// Graphics Output Protocol structures
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typedef struct {
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uint32_t RedMask;
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uint32_t GreenMask;
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uint32_t BlueMask;
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uint32_t ReservedMask;
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} EFI_PIXEL_BITMASK;
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typedef enum {
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PixelRedGreenBlueReserved8BitPerColor,
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PixelBlueGreenRedReserved8BitPerColor,
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PixelBitMask,
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PixelBltOnly,
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PixelFormatMax
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} EFI_GRAPHICS_PIXEL_FORMAT;
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typedef struct {
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uint32_t Version;
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uint32_t HorizontalResolution;
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uint32_t VerticalResolution;
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EFI_GRAPHICS_PIXEL_FORMAT PixelFormat;
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EFI_PIXEL_BITMASK PixelInformation;
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uint32_t PixelsPerScanLine;
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} EFI_GRAPHICS_OUTPUT_MODE_INFORMATION;
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typedef struct {
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uint32_t MaxMode;
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uint32_t Mode;
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EFI_GRAPHICS_OUTPUT_MODE_INFORMATION* Info;
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UINTN SizeOfInfo;
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uint64_t FrameBufferBase;
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UINTN FrameBufferSize;
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} EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE;
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// Boot information passed to kernel
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typedef struct {
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uint64_t memory_map_size;
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uint64_t memory_map_descriptor_size;
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EFI_MEMORY_DESCRIPTOR* memory_map;
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uint64_t framebuffer_base;
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uint32_t framebuffer_width;
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uint32_t framebuffer_height;
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uint32_t framebuffer_pitch;
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uint32_t framebuffer_bpp;
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uint64_t kernel_base;
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uint64_t kernel_size;
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void* rsdp; // ACPI RSDP pointer
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} BootInfo;
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#endif // METALOS_BOOTLOADER_EFI_H
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