SmmGenericSio

• Index: 0196
• Size: 16,740 bytes (16.3 KB)
• Phase: SMM (System Management Mode)
• PE Format: PE32+ x86-64, 6 sections (.text, .rdata, .data, section_3, .xdata, .reloc)

Overview

SMM driver for generic Super I/O (SIO) controller management. Part of the AmiModulePkg/GenericSio package. This driver provides SMM-based access to Super I/O configuration registers typically located in the I/O address space (e.g., 0x2E/0x2F or 0x4E/0x4F). It manages logical device enable/disable, configuration of LDN (Logical Device Number) assignments, and GPIO pin configuration. The driver supports common SIO chips (Nuvoton, ITE, Fintek) and provides SMM-protected access to SIO resources.

Key Functions

• ModuleEntryPoint -- Standard SMM driver entry; library init and SIO configuration
• sub_594 -- AutoGen library constructor
• sub_1570 -- Core SMM Generic SIO initialization (chip detection, logical device config)
• sub_18BC -- Library destructor
• sub_3B0 -- Manual unload handler
• sub_1A5C -- Error handler for SIO init failures

Protocols

• SmmBase2 Protocol -- SMM service entry point
• SmmIo Protocol -- SMM I/O access for SIO configuration port communication
• GenericSio Protocol -- SIO programming interface

Platform

• Build: HR6N0XMLK DEBUG_VS2015 X64
• Source: AmiModulePkg/GenericSio/SmmGenericSio
• Part of: HR650X BIOS SMM infrastructure (indices 0195-0199, 0201-0203)