PostScreenInfo

Function Table

Address	Name	Description
	PostScreenCallback
	_ModuleEntryPoint
	ProcessLibraryConstructorList
	PostScreenDriverEntry
	PostScreenHiiInit
	PostScreenHiiRegister
	ShowPostScreenInfoBlock1
	ShowPostScreenInfoBlock2
	PostScreenMainEntry
	ShowPostScreenData
	PostScreenFormUpdate
	PostScreenServerSetup
	ProcessPostScreenBlocks
	PostScreenStringFormatter
	PostScreenDataValidation
	PostScreenNavigation
	PostScreenUiElementUpdate
	PostScreenProgressBar
	PostScreenLogoDisplay
	PostScreenKeyHandler
	PostScreenTimeoutHandler
	PostScreenTimeDateDisplay
	PostScreenCursorUpdate
	PostScreenOemStringHandler
	PostScreenVarInit
	PostScreenSetupData
	PostScreenConfigLoad
	PostScreenGuidInit
	PostScreenFormExit
	PostScreenTimerEvent
	PostScreenEventNotify
	PostScreenTimerStop
	PostScreenMemoryAlloc
	PostScreenMmioInit
	PostScreenStartImage
	PostScreenHiiExtract
	PostScreenUnload
	EfiDriverUnloadHandler
	DriverDiagnosticHandler
	OemUpdateFruInfo
	FruInitInterface
	FruHeaderProcessing
	FruDataParseAndUpdate
	FruDataValidation
	FruUpdateProcessor
	FruReadAndApplySettings
	FruStorageInterface
	FruDataCommit
	FruRecordParsing
	FruStringProcessing
	FruFieldExtractor
	FruDataLookup
	FruStringToValue
	FruChecksumCalc
	FruCrcValidation
	FruWriteToStorage
	FruMemoryFree
	FruDataCopy
	UpdateOCPDeviceInfoToFru
	DebugAssertPrint
	DebugAssertBreak
Global	variable definitions
EFI_HANDLE	gImageHandle = NULL;
Global	data area (0xCA20 - 0xCB20 in .data section)
EFI_SYSTEM_TABLE	*SystemTable = NULL; // qword_CA20
qword_C9B0	//
HII	Config Access protocol instance
EFI_HII_CONFIG_ACCESS_PROTOCOL	gPostScreenHiiConfigAccess;
Forward	declarations
EFI_STATUS	EFIAPI
GUID	definitions for HII form
EFI_GUID	gPostScreenFormSetGuid = { 0x12345678, 0x9ABC, 0xDEF0, { 0x12, 0x34, 0x56, 0x78, 0x9A, 0xBC, 0xDE, 0xF0 } };
Protocol	GUID for HII Config Access
EFI_GUID	gPostScreenConfigAccessGuid = { 0x87654321, 0xCBAD, 0x0FED, { 0x21, 0x43, 0x65, 0x87, 0xA9, 0xCB, 0xED, 0x0F } };
GUID	for MMIO PCI USRA
EFI_GUID	gMmPciUsraGuid = { 0xC0B8, 0x11, 0x22, { 0x33, 0x44, 0x55, 0x66, 0x77, 0x88, 0x99, 0xAA } };
GUID	for HII package list
EFI_GUID	gPostScreenHiiPackageGuid = { 0xBF20, 0x11, 0x22, { 0x33, 0x44, 0x55, 0x66, 0x77, 0x88, 0x99, 0xAA } };
GUID	for DXE services table
EFI_GUID	gEfiDxeServicesTableGuid = { 0x5AD34BA, 0xFF0, 0x11, { 0xD2, 0x8F, 0x0, 0xA0, 0xC9, 0x69, 0x72, 0x3B } };
GUID	for HII platform setup formset
EFI_GUID	gEfiHiiPlatformSetupFormsetGuid = { 0x978, 0x11, 0x22, { 0x33, 0x44, 0x55, 0x66, 0x77, 0x88, 0x99, 0xAA } };
Module	Entry Point
sub_42C	(ProcessLibraryConstructorList) called by C runtime init
sub_3DB8	(PostScreenDriverEntry) is the driver's main function
Library	Constructors (Auto-generated by EDK2 build system)
rax	__int64 v4; // rbx
rax	__int64 result; // rax
Driver	Entry
rbx	__int64 v3; // rax
rcx	__int64 v5; // rdx
r9	__int64 result; // rax
rax	char v12; // [rsp+28h] [rbp-D8h]
Install	the HII Config Access protocol and HII form
gDriverHandle	= gDriverHandle;
HII	Initialization and Registration
Creates	HII package list with string, form, and image packages
Registers	with gHiiDatabase->NewPackageList()
Sets	up IFR opcodes for POST screen form display
Handles	EFI_BROWSER_ACTION_CHANGING and EFI_BROWSER_ACTION_CHANGED
Routes	to PostScreenFormUpdate, PostScreenServerSetup, etc.
Processes	OEM-specific QuestionIds for UBA callbacks
Creates	HII package list from raw binary data
Registers	with NewPackageList
POST	Screen Display Functions
Renders	system identity info on the POST screen
Server	model, BIOS version, BMC firmware version
Renders	component info: CPU speed/core count, memory size/type
PCIe	device enumeration status
Iterates	through POST screen blocks and displays each
Coordinates	ShowPostScreenInfoBlock1 and ShowPostScreenInfoBlock2
Handles	timeout and keyboard input during display
Iterates	Entry array, calls HiiSetString and sends output to GOP
Each	entry is a category-value pair rendered as text on screen
Extracts	byte at offset 610 to determine display flags
Updates	gPostScreenConfig.DisplayFlags accordingly
Uses	PrintLib to format and display strings
Handles	alignment, truncation, and line wrapping
Updates	progress bar and status text on POST screen
Calls	PostScreenProgressBar() for visual bar update
Calls	HiiSetString() for status message update
Draws	progress bar using GOP Block
Fills	bar proportional to Percent value
Gets	Graphics Output Protocol (GOP)
Locates	logo image from HII package
Blits	to center of screen
Updates	on-screen countdown timer
Gets	current time from gRT->GetTime()
Formats	and displays on POST screen
Sets	cursor position on POST screen console
Processes	and displays OEM-specific strings
Handles	ASCII/Unicode conversion if needed
POST	Screen State Management
Reads	POST screen config from NVRAM variables
Initializes	gPostScreenConfig with stored values
Falls	back to defaults if variable doesn't exist
Signals	boot to continue
Periodic	timer callback for POST screen updates
Decrements	timeout counter
Refreshes	screen display
MMIO	/ Protocol Init
Initializes	PCIe MMIO configuration space access
Uses	USRA protocol for processor-specific MMIO addressing
Installs	protocol interfaces to make the HII form visible
Driver	Unload and Diagnostics
Uninstalls	protocols, frees memory, closes events
Standard	UEFI driver unload stub
FRU	(Field Replaceable Unit) Operations
Processes	FRU update sequence:
EDK2	Debug Library Helpers

Generated by HR650X BIOS Decompilation Project