85 lines
1.6 KiB
C
85 lines
1.6 KiB
C
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/*++
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Copyright (c) 2001 Microsoft Corporation
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Module Name:
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pcienum.h
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Abstract:
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This module contains support routines for the Pci bus enumeration.
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Author:
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Bassam Tabbara (bassamt) 05-Aug-2001
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Environment:
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Real mode
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--*/
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#define PCI_ITERATOR_TO_BUS(i) ((UCHAR)(((i) >> 8) & 0xFF))
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#define PCI_ITERATOR_TO_DEVICE(i) ((UCHAR)(((i) >> 3) & 0x1F))
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#define PCI_ITERATOR_TO_FUNCTION(i) ((UCHAR)((i) & 0x07))
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#define PCI_TO_ITERATOR(b,d,f) ((ULONG)(0x80000000 | ((b) << 8) | ((d) << 3) | (f)))
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#define PCI_ITERATOR_TO_BUSDEVFUNC(i) ((USHORT)(i & 0xFFFF))
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//
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// methods
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//
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ULONG PciReadConfig
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(
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ULONG nDevIt,
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ULONG cbOffset,
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UCHAR * pbBuffer,
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ULONG cbLength
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);
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ULONG PciWriteConfig
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(
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ULONG nDevIt,
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ULONG cbOffset,
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UCHAR * pbBuffer,
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ULONG cbLength
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);
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ULONG PciFindDevice
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(
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USHORT nVendorId, // 0 = Wildcard
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USHORT nDeviceId, // 0 = Wildcard
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ULONG nBegDevIt // 0 = begin enumeration
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);
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BOOLEAN PciInit(PCI_REGISTRY_INFO *pPCIReg);
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UCHAR PciBiosReadConfig
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(
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ULONG nDevIt,
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UCHAR cbOffset,
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UCHAR * pbBuffer,
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ULONG cbLength
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);
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ULONG PciBiosFindDevice
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(
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USHORT nVendorId, // 0 = Wildcard
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USHORT nDeviceId, // 0 = Wildcard
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ULONG nBegDevIt // 0 = begin enumeration
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);
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#ifdef DBG
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extern
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VOID
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ScanPCIViaBIOS(
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PPCI_REGISTRY_INFO pPciEntry
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);
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#endif
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