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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5820 6f19259b-4bc3-4df7-8a09-765794883524
372 lines
10 KiB
C
372 lines
10 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_ENUMERATOR_SUPPORT_H
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#define _EFI_PCI_ENUMERATOR_SUPPORT_H
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/**
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This routine is used to check whether the pci device is present.
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@param PciRootBridgeIo Pointer to instance of EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL
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@param Pci Output buffer for PCI device structure
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@param Bus PCI bus NO
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@param Device PCI device NO
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@param Func PCI Func NO
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@retval EFI_NOT_FOUND device not present
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@retval EFI_SUCCESS device is found.
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**/
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EFI_STATUS
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PciDevicePresent (
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IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo,
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PCI_TYPE00 *Pci,
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UINT8 Bus,
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UINT8 Device,
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UINT8 Func
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);
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/**
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Collect all the resource information under this root bridge
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A database that records all the information about pci device subject to this
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root bridge will then be created.
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@param Bridge Parent bridge instance
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@param StartBusNumer Bus number of begining
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**/
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EFI_STATUS
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PciPciDeviceInfoCollector (
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IN PCI_IO_DEVICE *Bridge,
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UINT8 StartBusNumber
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);
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/**
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Seach required device and get PCI device info block
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@param Bridge Parent bridge instance
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@param Pci Output of PCI device info block
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@param Bus PCI bus NO.
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@param Device PCI device NO.
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@param Func PCI func NO.
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@param PciDevice output of searched PCI device instance
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**/
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EFI_STATUS
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PciSearchDevice (
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IN PCI_IO_DEVICE *Bridge,
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PCI_TYPE00 *Pci,
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UINT8 Bus,
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UINT8 Device,
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UINT8 Func,
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PCI_IO_DEVICE **PciDevice
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);
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/**
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Create PCI private data for PCI device
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@param Bridge Parent bridge instance
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@param Pci PCI bar block
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@param Bus PCI device Bus NO.
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@param Device PCI device DeviceNO.
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@param Func PCI device's func NO.
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@return new PCI device's private date structure.
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**/
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PCI_IO_DEVICE *
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GatherDeviceInfo (
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IN PCI_IO_DEVICE *Bridge,
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IN PCI_TYPE00 *Pci,
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UINT8 Bus,
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UINT8 Device,
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UINT8 Func
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);
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/**
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Create private data for bridge device's PPB.
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@param Bridge Parent bridge
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@param Pci Pci device block
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@param Bus Bridge device's bus NO.
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@param Device Bridge device's device NO.
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@param Func Bridge device's func NO.
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@return bridge device instance
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**/
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PCI_IO_DEVICE *
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GatherPpbInfo (
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IN PCI_IO_DEVICE *Bridge,
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IN PCI_TYPE00 *Pci,
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UINT8 Bus,
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UINT8 Device,
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UINT8 Func
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);
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/**
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Create private data for hotplug bridge device
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@param Bridge Parent bridge instance
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@param Pci PCI bar block
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@param Bus hotplug bridge device's bus NO.
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@param Device hotplug bridge device's device NO.
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@param Func hotplug bridge device's Func NO.
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@return hotplug bridge device instance
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**/
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PCI_IO_DEVICE *
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GatherP2CInfo (
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IN PCI_IO_DEVICE *Bridge,
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IN PCI_TYPE00 *Pci,
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UINT8 Bus,
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UINT8 Device,
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UINT8 Func
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);
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/**
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Create device path for pci deivce
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@param ParentDevicePath Parent bridge's path
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@param PciIoDevice Pci device instance
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@return device path protocol instance for specific pci device.
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**/
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EFI_DEVICE_PATH_PROTOCOL *
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CreatePciDevicePath (
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IN EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath,
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IN PCI_IO_DEVICE *PciIoDevice
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);
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/**
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Check the bar is existed or not.
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@param PciIoDevice - A pointer to the PCI_IO_DEVICE.
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@param Offset - The offset.
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@param BarLengthValue - The bar length value.
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@param OriginalBarValue - The original bar value.
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@retval EFI_NOT_FOUND - The bar don't exist.
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@retval EFI_SUCCESS - The bar exist.
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**/
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EFI_STATUS
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BarExisted (
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IN PCI_IO_DEVICE *PciIoDevice,
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IN UINTN Offset,
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OUT UINT32 *BarLengthValue,
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OUT UINT32 *OriginalBarValue
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);
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/**
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Test whether the device can support attributes
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@param PciIoDevice Pci device instance
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@param Command Command register value.
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@param BridgeControl Bridge control value for PPB or P2C.
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@param OldCommand Old command register offset
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@param OldBridgeControl Old Bridge control value for PPB or P2C.
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@return EFI_SUCCESS
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**/
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EFI_STATUS
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PciTestSupportedAttribute (
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IN PCI_IO_DEVICE *PciIoDevice,
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IN UINT16 *Command,
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IN UINT16 *BridgeControl,
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IN UINT16 *OldCommand,
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IN UINT16 *OldBridgeControl
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);
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/**
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Set the supported or current attributes of a PCI device
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@param PciIoDevice - Structure pointer for PCI device.
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@param Command - Command register value.
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@param BridgeControl - Bridge control value for PPB or P2C.
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@param Option - Make a choice of EFI_SET_SUPPORTS or EFI_SET_ATTRIBUTES.
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**/
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EFI_STATUS
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PciSetDeviceAttribute (
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IN PCI_IO_DEVICE *PciIoDevice,
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IN UINT16 Command,
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IN UINT16 BridgeControl,
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IN UINTN Option
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);
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/**
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Determine if the device can support Fast Back to Back attribute
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@param PciIoDevice Pci device instance
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@param StatusIndex Status register value
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**/
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EFI_STATUS
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GetFastBackToBackSupport (
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IN PCI_IO_DEVICE *PciIoDevice,
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IN UINT8 StatusIndex
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);
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/**
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Determine the related attributes of all devices under a Root Bridge
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@param PciIoDevice PCI device instance
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**/
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EFI_STATUS
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DetermineDeviceAttribute (
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IN PCI_IO_DEVICE *PciIoDevice
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);
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/**
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This routine is used to update the bar information for those incompatible PCI device
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@param PciIoDevice Pci device instance
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@return EFI_UNSUPPORTED failed to update Pci Info
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**/
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EFI_STATUS
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UpdatePciInfo (
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IN PCI_IO_DEVICE *PciIoDevice
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);
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/**
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This routine will update the alignment with the new alignment
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@param Alignment old alignment
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@param NewAlignment new alignment
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**/
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VOID
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SetNewAlign (
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IN UINT64 *Alignment,
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IN UINT64 NewAlignment
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);
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/**
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Parse PCI bar bit.
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@param PciIoDevice Pci device instance
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@param Offset bar offset
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@param BarIndex bar index
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@return next bar offset.
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**/
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UINTN
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PciParseBar (
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IN PCI_IO_DEVICE *PciIoDevice,
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IN UINTN Offset,
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IN UINTN BarIndex
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);
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/**
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This routine is used to initialize the bar of a PCI device
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It can be called typically when a device is going to be rejected
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@param PciIoDevice Pci device instance
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**/
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EFI_STATUS
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InitializePciDevice (
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IN PCI_IO_DEVICE *PciIoDevice
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);
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/**
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Init PPB for bridge device
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@param PciIoDevice Pci device instance
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**/
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EFI_STATUS
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InitializePpb (
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IN PCI_IO_DEVICE *PciIoDevice
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);
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/**
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Init private data for Hotplug bridge device
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@param PciIoDevice hotplug bridge device
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**/
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EFI_STATUS
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InitializeP2C (
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IN PCI_IO_DEVICE *PciIoDevice
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);
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/**
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Create and initiliaze general PCI I/O device instance for
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PCI device/bridge device/hotplug bridge device.
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@param PciRootBridgeIo Pointer to instance of EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL
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@param Pci Pci bar block
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@param Bus device Bus NO.
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@param Device device device NO.
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@param Func device func NO.
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@return instance of PCI device
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**/
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PCI_IO_DEVICE *
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CreatePciIoDevice (
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IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo,
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IN PCI_TYPE00 *Pci,
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UINT8 Bus,
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UINT8 Device,
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UINT8 Func
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);
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/**
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This routine is used to enumerate entire pci bus system
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in a given platform
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It is only called on the second start on the same Root Bridge.
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@param Controller Parent bridge handler
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@return status of operation.
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**/
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EFI_STATUS
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PciEnumeratorLight (
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IN EFI_HANDLE Controller
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);
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/**
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Get bus range.
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@param Descriptors A pointer to the address space descriptor.
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@param MinBus The min bus.
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@param MaxBus The max bus.
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@param BusRange The bus range.
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@retval EFI_SUCCESS Success operation.
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@retval EFI_NOT_FOUND can not find the specific bus.
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**/
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EFI_STATUS
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PciGetBusRange (
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IN EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR **Descriptors,
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OUT UINT16 *MinBus,
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OUT UINT16 *MaxBus,
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OUT UINT16 *BusRange
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);
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EFI_STATUS
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StartManagingRootBridge (
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IN PCI_IO_DEVICE *RootBridgeDev
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);
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/**
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This routine can be used to check whether a PCI device should be rejected when light enumeration
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@param PciIoDevice Pci device instance
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@retval TRUE This device should be rejected
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@retval FALSE This device shouldn't be rejected
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**/
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BOOLEAN
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IsPciDeviceRejected (
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IN PCI_IO_DEVICE *PciIoDevice
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);
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#endif
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