Leaked source code of windows server 2003
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/*++
Copyright (c) Microsoft Corporation. All rights reserved.
Module Name:
ixpciir.h
Abstract:
This header file defines the private interfaces, defines and structures
for Pci Irq Routing support.
Author:
Santosh Jodh (santoshj) 10-June-1998
Environment:
Kernel mode only.
Revision History:
--*/
#include <pciirqmp.h>
#define PCI_LINK_SIGNATURE 'KNLP'
#define IsPciIrqRoutingEnabled() \
(HalpPciIrqRoutingInfo.PciIrqRoutingTable && HalpPciIrqRoutingInfo.PciInterface)
typedef struct _LINK_STATE LINK_STATE, *PLINK_STATE;
typedef struct _LINK_NODE LINK_NODE, *PLINK_NODE;
typedef struct _PCI_IRQ_ROUTING_INFO PCI_IRQ_ROUTING_INFO, *PPCI_IRQ_ROUTING_INFO;
struct _LINK_STATE {
ULONG Interrupt; // Interrupt for this link.
ULONG RefCount; // Number of devices using this link.
};
struct _LINK_NODE {
ULONG Signature; // Signature 'PLNK'.
PLINK_NODE Next;
ULONG Link; // Link value.
ULONG InterruptMap; // Possible Irq map.
PLINK_STATE Allocation;
PLINK_STATE PossibleAllocation;
};
struct _PCI_IRQ_ROUTING_INFO {
PPCI_IRQ_ROUTING_TABLE PciIrqRoutingTable;
PINT_ROUTE_INTERFACE_STANDARD PciInterface;
PLINK_NODE LinkNodeHead;
ULONG Parameters;
};
NTSTATUS
HalpInitPciIrqRouting (
OUT PPCI_IRQ_ROUTING_INFO PciIrqRoutingInfo
);
NTSTATUS
HalpFindLinkNode (
IN PPCI_IRQ_ROUTING_INFO PciIrqRoutingInfo,
IN PDEVICE_OBJECT Pdo,
IN ULONG Bus,
IN ULONG Slot,
OUT PLINK_NODE *LinkNode
);
NTSTATUS
HalpCommitLink (
IN PLINK_NODE LinkNode
);
VOID
HalpProgramInterruptLine (
IN PPCI_IRQ_ROUTING_INFO PciIrqRoutingInfo,
IN PDEVICE_OBJECT Pdo,
IN ULONG Interrupt
);
extern PCI_IRQ_ROUTING_INFO HalpPciIrqRoutingInfo;