ACPIFindPCIDevice
Find PCI device by Bus:Dev:Fun
Syntax
APIRET APIENTRY ACPIFindPCIDevice(UINT32 Bus, UINT32 Dev, UINT32 Fun, UINT32 *PicIRQ, UINT32 *ApicIRQ, ACPI_HANDLE *Hdl, char *Component)
Parameters
- Bus
- PCI Bus
- Dev
- PCI Device
- Fun
- PCI Finction
- Component
- Name of caller for acpica$ log
- Hdl
- Finding handle for device
- PicIRQ
- IRQ in PIC mode or boot stage
- ApicIRQ
- IRQ in APIC mode or zero if problem or PIC mode
Example
temp2 = temp3 = 0;
rc = ACPIFindPCIDevice( (ULONG)busNr, // Bus
(ULONG)devNr, // Dev
(ULONG)(pcidev->devfn >> 8) & 7, // Function
&temp1, // PIC IRQ
&temp3, // APIC IRQ
NULL, // ACPI handle to finding device
"Uniaud32"); // Name for acpi log
if (!rc)
{
// Check APIC IRQ, if we have /SMP /APIC, must be set
if (temp3)
temp = (temp & (~0xff)) | (temp3 & 0xff);
// Check PIC IRQ
else if (temp1)
temp = (temp & (~0xff)) | (temp1 & 0xff);
dprintf(("pci_query_device: IRQs ACPI PIC%d APIC%d set:0x%x", temp1, temp3,temp));
}