794E15D9-BF1B-4568-99AC-DCE207C022E4

Overview

ASPEED Graphics DXE Driver for the AST2xxx BMC (Baseboard Management Controller) integrated graphics controller. This driver implements the UEFI Graphics Output Protocol (GOP) for AST2500/2600 video hardware, providing display mode enumeration, mode setting, framebuffer blitting (Blt), and hardware initialization. It uses the UEFI Driver Binding Protocol model and registers a Component Name protocol for human-readable driver identification.

Key Functions

• ModuleEntryPoint -- UEFI module entry; saves system table pointers
• AspGraphicsDriverEntry -- Driver entry point; installs Driver Binding and Component Name protocols
• AspGraphicsDriverBindingSupported -- Tests if a controller is an ASPEED graphics device
• AspGraphicsDriverBindingStart -- Starts the driver on a controller; initializes display hardware, installs GOP
• AspGraphicsDriverBindingStop -- Stops the driver; releases graphics resources
• AspInitDisplayHardware -- Low-level AST2xxx display controller initialization
• AspInitModeTable -- Builds the supported video mode table
• AspInstallGopProtocol -- Installs the Graphics Output Protocol on the controller handle
• AspGraphicsSetMode -- Sets a graphics display mode
• AspGraphicsQueryMode -- Queries mode timings and attributes
• AspGraphicsBlt -- Performs Blt (block transfer) operations to/from the framebuffer
• AspGraphicsComponentNameGetDriverName -- Returns driver name string
• AspGraphicsComponentNameGetControllerName -- Returns controller description string

Dependencies

UEFI Boot Services, UEFI Runtime Services, Graphics Output Protocol, Driver Binding Protocol, Component Name Protocol, Device Path Protocol

Platform

Lenovo HR650X (Purley/LBG-PCH), X64, ASPEED AST2500/AST2600 BMC