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