97 lines
3.5 KiB
C
97 lines
3.5 KiB
C
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#pragma once
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#include <efi.h>
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#include <efilib.h>
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#include <pe.h>
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#include <ELF.h>
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#define MAJOR_VER 1
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#define MINOR_VER 0
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#define DOS_EXECUTABLE 0x622
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/* ==================== DEBUGGING CODE ==================== */
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#ifdef DEBUG
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#define METADATA_SHOW
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#define WATCHDOG_TIMER_DISABLE
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#define MAIN_DEBUG
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#define GFX_DEBUG_MAIN
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#define GFX_DEBUG_NAMING
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#define LOADER_DEBUG_MAIN
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#define LOADER_DEBUG_PE
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#define LOADER_DEBUG_DOS
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#define LOADER_DEBUG_ELF
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#define LOADER_DEBUG_FINAL
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#define MEMORY_SHOW
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#define MEMORY_CHECK
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#endif
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/* ==================== Text File Magic Numbers ==================== */
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/* Required to make sure that the configuration file is encoded properly.
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* The magic number is set automatically by all text editors, including Notepad. */
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#define UTF8_BOM_LE 0xBFBBEF // Little Endian
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#define UTF8_BOM_BE 0xEFBBBF // Big Endian
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#define UTF16_BOM_LE 0xFEFF
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#define UTF16_BOM_BE 0xFFFE
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/* ==================== Fileloader Structs ==================== */
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/* These are the structs passed to the kernel file when it's called by the bootloader.
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* More information about this can be found in main.c */
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typedef struct {
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EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE* GPUs; // Information about each graphics output unit (one or more per GPU)
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size_t FBCount; // The amount of framebuffers available.
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} GFX_INFO;
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typedef struct {
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uint32_t UEFI_Version; // Version of the firmware running
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uint32_t Bootloader_MajorVersion; // Major and
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uint32_t Bootloader_MinorVersion; // minor version of the bootloader itself.
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uint32_t Memory_Descriptor_Version;
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size_t Memory_Descriptor_Size; // Size of each memory descriptor
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EFI_MEMORY_DESCRIPTOR* Memory_Map; // System memory map, as an array of EFI_MEMORY_DESCRIPTORs
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size_t Memory_Map_Size; // Total size of the memory map
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EFI_PHYSICAL_ADDRESS Kernel_Base; // The physical (absolute) address of the start of the kernel
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size_t Kernel_Pages; // How many pages (of 4KiB) the kernel takes up
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CHAR16* ESP_Path; // The drive root of the EFI System Partition
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size_t ESP_Path_Length; // Size in bytes of the ESP_Path string
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CHAR16* Kernel_Path; // Kernel's file path relative to the ESP_Path
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size_t Kernel_Path_Length; // Size in bytes of the Kernel_Path string
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CHAR16* Kernel_Options; // Options given to the kernel, taken from the 2nd line of the
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size_t Kernel_Options_Length; // Size in bytes of the Kernel_Options string
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EFI_RUNTIME_SERVICES* RTServices; // The UEFI Runtime Services
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GFX_INFO* GPU_INFO; // Information about all available graphics devices
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EFI_FILE_INFO* FileMeta; // Kernel file metadata
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EFI_CONFIGURATION_TABLE* ConfigTables; // UEFI system configuration tables
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size_t ConfigTables_Length;
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} FILELOADER_PARAMS;
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/* ==================== FUNCTION PROTOTYPES ==================== */
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EFI_STATUS AwaitKey(CHAR16* Str);
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uint8_t Compare(const void* a, const void* b, size_t length);
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EFI_STATUS InitGfx(EFI_HANDLE ImageHandle, GFX_INFO* Gfx);
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EFI_STATUS LoadKernel(EFI_HANDLE ImageHandle, GFX_INFO* Gfx, EFI_CONFIGURATION_TABLE* ConfigTables, size_t NumConfigTables, uint32_t UEFIVer);
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uint8_t VerifyZero(size_t Length, size_t Base);
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EFI_PHYSICAL_ADDRESS FindFreeAddress(size_t pages, EFI_PHYSICAL_ADDRESS Base);
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EFI_PHYSICAL_ADDRESS FreeAddressByPage(size_t pages, EFI_PHYSICAL_ADDRESS Base);
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void PrintMemoryMap(void);
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#ifdef GFX_DEBUG_NAMING
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EFI_STATUS WhatProtocols(EFI_HANDLE* HandleArray, size_t NumHandles);
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#endif
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