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Function RTMPTablePCIInterrupt

RTMPTablePCIInterrupt adds a PCI interrupt routing record to the custom MP Floating Pointer Structure previously created with RTMPTableCreate.

UINT RTMPTablePCIInterrupt(BYTE IoApicID, 
                           BYTE IoApicInt, 
                           BYTE BusID, 
                           BYTE Device, 
                           BYTE IntPin, 
                           BYTE Flags);

Parameters

IoApicID

ID of an I/O APIC previously specified in an RTMPTableIOAPIC call.

IoApicInt

Interrupt input line of the I/O APIC. For most I/O APICs, values in the range 0 .. 23 are supported.

BusID

ID of a PCI bus previously specified in an RTMPTableBus call.

Device

PCI device number of the device generating the interrupt.

IntPin

PCI interrupt pin used by the device. Use values 0 .. 3 for interrupt pins A .. D.

Flags

The current release does not define any flag values. This parameter should be set to 0.

return value

Zero if the table's size is exhausted or a value greater zero on success.

This function must be called for each PCI interrupt source the application needs to use. It associates an interrupt pin of a PCI device with an I/O APIC interrupt input line. When switching to APIC mode, RTTarget-32 maps all PCI interrupts such that they occur on the I/O APIC's interrupt input line's IRQ (unless flag RT_APIC_USE_LEGACY_MAP has been specified.

Function RTMPTableInterrupt

Function RTMPTableCPU