On Time RTOS-32 Documentation

Welcome

RTTarget-32

RTTarget-32 Programming Manual

RTTarget-32 Reference Manual

Introduction

RTTarget-32 Configuration

Memory Mapping and Management

Real-Time Clock and CMOS RAM

Keyboard

Mouse and Touch Screen Driver

Parallel Port Printer

Serial Port I/O

PCI BIOS

Function RTT_BIOS_Installed

Function RTT_BIOS_NextDevice

Function RTT_BIOS_FindDevice

Function RTT_BIOS_FindClassCode

Function RTT_BIOS_GetInterruptRouting

Function RTT_BIOS_SetPCIInt

Function RTT_BIOS_GenSpecialCycle

Function RTT_BIOS_ReadConfigData

Function RTT_BIOS_WriteConfigData

Function RTT_BIOS_LocateCapability

Function RTT_BIOS_Rescan

Plug-and-Play BIOS

PC Cards (PCMCIA)

MetaWINDOW Initialization

Run-Time System Support

System Management BIOS (SMBIOS)

Advanced Programmable Interrupt Controller (APIC)

Multiprocessor Management

Spinlocks

Advanced Configuration and Power Interface (ACPI) Tables

Extended RAM Management

Function RTT_BIOS_LocateCapability

This function can be used to search for PCI device's Capabilities:

UINT RTT_BIOS_LocateCapability(BYTE Bus, BYTE DeviceFunc, UINT CapId, DWORD Flags);

Parameters

Bus

PCI bus number the device is on.

DeviceFunc

Device number in bits 7 .. 3 and the function number in bits 2 .. 0 for the device to be queried.

CapId

Id number of the PCI Capability to search for.

Flags

Zero for PCI Capabilities or flag RTT_BIOS_EXTENDED_CAP if parameter CapId refers to a PCI Express Extended Capability.

return value

The register offset of the Capability header within the PCI config space of the device if the Capability was found. If it was not found, zero is returned.

Left PCI BIOS

Function RTT_BIOS_WriteConfigData

Down Function RTT_BIOS_Rescan