/** @file
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@copyright
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Copyright 1999 - 2021 Intel Corporation. <BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef _EFI_PCI_CALLBACK_H
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#define _EFI_PCI_CALLBACK_H
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#include <Include/IndustryStandard/Pci22.h>
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#include <Protocol/CpuIo2.h>
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#include <Protocol/PciRootBridgeIo.h>
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//
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// Global Id for PCI callback
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//
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#define EFI_PCI_CALLBACK_PROTOCOL_GUID \
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{ \
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0x1ca0e202, 0xfe9e, 0x4776, 0x9f, 0xaa, 0x57, 0xc, 0x19, 0x61, 0x7a, 0x06 \
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}
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typedef struct _EFI_PCI_CALLBACK_PROTOCOL EFI_PCI_CALLBACK_PROTOCOL;
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typedef enum {
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EfiPciEnumerationDeviceScanning = 1,
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EfiPciEnumerationBusNumberAssigned = 2,
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EfiPciEnumerationResourceAssigned = 4,
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} EFI_PCI_ENUMERATION_PHASE;
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typedef struct {
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PCI_TYPE00 PciHeader;
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EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo;
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EFI_CPU_IO2_PROTOCOL *CpuIo;
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} EFI_PCI_CALLBACK_CONTEXT;
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typedef
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VOID
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(EFIAPI *EFI_PCI_CALLBACK_FUNC) (
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IN EFI_HANDLE RootBridgeHandle,
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IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_PCI_ADDRESS PciAddress,
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IN EFI_PCI_ENUMERATION_PHASE Phase,
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IN EFI_PCI_CALLBACK_CONTEXT *Context
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);
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typedef
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EFI_STATUS
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(EFIAPI *EFI_REGISTER_PCI_CALLBACK) (
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IN EFI_PCI_CALLBACK_PROTOCOL *This,
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IN EFI_PCI_CALLBACK_FUNC Function,
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IN EFI_PCI_ENUMERATION_PHASE Phase
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)
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/*++
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Routine Description:
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Register a callback during PCI bus enumeration
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Arguments:
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This - Protocol instance pointer.
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Function - Callback function pointer.
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Phase - PCI enumeration phase.
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Returns:
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EFI_SUCCESS - Function has registed successfully
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EFI_UNSUPPORTED - The function has been regisered
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EFI_InVALID_PARAMETER - The parameter is incorrect
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--*/
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;
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//
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// Protocol definition
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//
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typedef struct _EFI_PCI_CALLBACK_PROTOCOL {
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EFI_REGISTER_PCI_CALLBACK RegisterPciCallback;
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} EFI_PCI_CALLBACK_PROTOCOL;
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extern EFI_GUID gEfiPciCallbackProtocolGuid;
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#endif
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