eeefcb9d4b
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@7215 6f19259b-4bc3-4df7-8a09-765794883524
166 lines
4.2 KiB
C
166 lines
4.2 KiB
C
/** @file
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Copyright (c) 2006, Intel Corporation
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#ifndef _EFI_PCI_HOT_PLUG_SUPPORT_H_
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#define _EFI_PCI_HOT_PLUG_SUPPORT_H_
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//
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// stall 1 second
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//
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#define STALL_1_SECOND 1000000
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typedef struct {
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EFI_EVENT Event;
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BOOLEAN Initialized;
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VOID *Padding;
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} ROOT_HPC_DATA;
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extern EFI_PCI_HOT_PLUG_INIT_PROTOCOL *gPciHotPlugInit;
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extern EFI_HPC_LOCATION *gPciRootHpcPool;
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extern UINTN gPciRootHpcCount;
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extern ROOT_HPC_DATA *gPciRootHpcData;
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/**
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Init HPC private data.
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@param Event event object
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@param Context HPC private data.
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**/
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VOID
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EFIAPI
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PciHPCInitialized (
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IN EFI_EVENT Event,
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IN VOID *Context
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);
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/**
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Compare two device path
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@param DevicePath1 the first device path want to be compared.
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@param DevicePath2 the first device path want to be compared.
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@retval TRUE equal.
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@retval FALSE different.
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**/
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BOOLEAN
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EfiCompareDevicePath (
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IN EFI_DEVICE_PATH_PROTOCOL *DevicePath1,
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IN EFI_DEVICE_PATH_PROTOCOL *DevicePath2
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);
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/**
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Init hot plug support and root hot plug private data.
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**/
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EFI_STATUS
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InitializeHotPlugSupport (
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VOID
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);
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/**
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Test whether PCI device is hot plug bus.
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@param PciIoDevice PCI device instance.
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@retval EFI_SUCCESS PCI device is hot plug bus.
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@retval EFI_NOT_FOUND PCI device is not hot plug bus.
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**/
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EFI_STATUS
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IsPciHotPlugBus (
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PCI_IO_DEVICE *PciIoDevice
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);
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/**
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Test whether device path is for root pci hot plug bus
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@param HpbDevicePath tested device path
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@param HpIndex Return the index of root hot plug in global array.
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@retval TRUE device path is for root pci hot plug
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@retval FALSE device path is not for root pci hot plug
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**/
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BOOLEAN
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IsRootPciHotPlugBus (
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IN EFI_DEVICE_PATH_PROTOCOL *HpbDevicePath,
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OUT UINTN *HpIndex
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);
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/**
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Test whether device path is for root pci hot plug controller
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@param HpcDevicePath tested device path.
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@param HpIndex Return the index of root hot plug in global array.
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@retval TRUE device path is for root pci hot plug controller.
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@retval FALSE device path is not for root pci hot plug controller.
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**/
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BOOLEAN
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IsRootPciHotPlugController (
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IN EFI_DEVICE_PATH_PROTOCOL *HpcDevicePath,
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OUT UINTN *HpIndex
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);
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/**
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Wrapper for creating event object for HPC
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@param HpIndex index of hot plug device in global array.
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@param Event event object.
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@return status of create event invoken.
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**/
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EFI_STATUS
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CreateEventForHpc (
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IN UINTN HpIndex,
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OUT EFI_EVENT *Event
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);
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/**
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Wait for all root HPC initialized.
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@param TimeoutInMicroSeconds microseconds to wait for all root hpc's initialization.
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**/
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EFI_STATUS
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AllRootHPCInitialized (
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IN UINTN TimeoutInMicroSeconds
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);
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/**
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Check HPC capability register block
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@param PciIoDevice PCI device instance.
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@retval EFI_SUCCESS PCI device is HPC.
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@retval EFI_NOT_FOUND PCI device is not HPC.
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**/
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EFI_STATUS
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IsSHPC (
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PCI_IO_DEVICE *PciIoDevice
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);
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/**
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Get resource padding for hot plug bus
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@param PciIoDevice PCI device instance.
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@retval EFI_SUCCESS success get padding and set it into PCI device instance.
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@retval EFI_NOT_FOUND PCI device is not a hot plug bus.
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**/
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EFI_STATUS
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GetResourcePaddingForHpb (
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IN PCI_IO_DEVICE *PciIoDevice
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);
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#endif
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