mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-11-27 12:15:19 +01:00
267 lines
6.5 KiB
C
267 lines
6.5 KiB
C
/** @file
|
|
Supporting functions declaration for PCI devices management.
|
|
|
|
Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.<BR>
|
|
SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
|
|
**/
|
|
|
|
#ifndef _EFI_PCI_DEVICE_SUPPORT_H_
|
|
#define _EFI_PCI_DEVICE_SUPPORT_H_
|
|
|
|
/**
|
|
Initialize the PCI devices pool.
|
|
|
|
**/
|
|
VOID
|
|
InitializePciDevicePool (
|
|
VOID
|
|
);
|
|
|
|
/**
|
|
Insert a root bridge into PCI device pool.
|
|
|
|
@param RootBridge A pointer to the PCI_IO_DEVICE.
|
|
|
|
**/
|
|
VOID
|
|
InsertRootBridge (
|
|
IN PCI_IO_DEVICE *RootBridge
|
|
);
|
|
|
|
/**
|
|
This function is used to insert a PCI device node under
|
|
a bridge.
|
|
|
|
@param Bridge The PCI bridge.
|
|
@param PciDeviceNode The PCI device needs inserting.
|
|
|
|
**/
|
|
VOID
|
|
InsertPciDevice (
|
|
IN PCI_IO_DEVICE *Bridge,
|
|
IN PCI_IO_DEVICE *PciDeviceNode
|
|
);
|
|
|
|
/**
|
|
Destroy root bridge and remove it from device tree.
|
|
|
|
@param RootBridge The bridge want to be removed.
|
|
|
|
**/
|
|
VOID
|
|
DestroyRootBridge (
|
|
IN PCI_IO_DEVICE *RootBridge
|
|
);
|
|
|
|
/**
|
|
Destroy all the pci device node under the bridge.
|
|
Bridge itself is not included.
|
|
|
|
@param Bridge A pointer to the PCI_IO_DEVICE.
|
|
|
|
**/
|
|
VOID
|
|
DestroyPciDeviceTree (
|
|
IN PCI_IO_DEVICE *Bridge
|
|
);
|
|
|
|
/**
|
|
Destroy all device nodes under the root bridge
|
|
specified by Controller.
|
|
|
|
The root bridge itself is also included.
|
|
|
|
@param Controller Root bridge handle.
|
|
|
|
@retval EFI_SUCCESS Destroy all device nodes successfully.
|
|
@retval EFI_NOT_FOUND Cannot find any PCI device under specified
|
|
root bridge.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
DestroyRootBridgeByHandle (
|
|
IN EFI_HANDLE Controller
|
|
);
|
|
|
|
/**
|
|
This function registers the PCI IO device.
|
|
|
|
It creates a handle for this PCI IO device (if the handle does not exist), attaches
|
|
appropriate protocols onto the handle, does necessary initialization, and sets up
|
|
parent/child relationship with its bus controller.
|
|
|
|
@param Controller An EFI handle for the PCI bus controller.
|
|
@param PciIoDevice A PCI_IO_DEVICE pointer to the PCI IO device to be registered.
|
|
@param Handle A pointer to hold the returned EFI handle for the PCI IO device.
|
|
|
|
@retval EFI_SUCCESS The PCI device is successfully registered.
|
|
@retval other An error occurred when registering the PCI device.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
RegisterPciDevice (
|
|
IN EFI_HANDLE Controller,
|
|
IN PCI_IO_DEVICE *PciIoDevice,
|
|
OUT EFI_HANDLE *Handle OPTIONAL
|
|
);
|
|
|
|
/**
|
|
This function is used to remove the whole PCI devices on the specified bridge from
|
|
the root bridge.
|
|
|
|
@param RootBridgeHandle The root bridge device handle.
|
|
@param Bridge The bridge device to be removed.
|
|
|
|
**/
|
|
VOID
|
|
RemoveAllPciDeviceOnBridge (
|
|
EFI_HANDLE RootBridgeHandle,
|
|
PCI_IO_DEVICE *Bridge
|
|
);
|
|
|
|
/**
|
|
This function is used to de-register the PCI IO device.
|
|
|
|
That includes un-installing PciIo protocol from the specified PCI
|
|
device handle.
|
|
|
|
@param Controller An EFI handle for the PCI bus controller.
|
|
@param Handle PCI device handle.
|
|
|
|
@retval EFI_SUCCESS The PCI device is successfully de-registered.
|
|
@retval other An error occurred when de-registering the PCI device.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
DeRegisterPciDevice (
|
|
IN EFI_HANDLE Controller,
|
|
IN EFI_HANDLE Handle
|
|
);
|
|
|
|
/**
|
|
Start to manage the PCI device on the specified root bridge or PCI-PCI Bridge.
|
|
|
|
@param Controller The root bridge handle.
|
|
@param RootBridge A pointer to the PCI_IO_DEVICE.
|
|
@param RemainingDevicePath A pointer to the EFI_DEVICE_PATH_PROTOCOL.
|
|
@param NumberOfChildren Children number.
|
|
@param ChildHandleBuffer A pointer to the child handle buffer.
|
|
|
|
@retval EFI_NOT_READY Device is not allocated.
|
|
@retval EFI_UNSUPPORTED Device only support PCI-PCI bridge.
|
|
@retval EFI_NOT_FOUND Can not find the specific device.
|
|
@retval EFI_SUCCESS Success to start Pci devices on bridge.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
StartPciDevicesOnBridge (
|
|
IN EFI_HANDLE Controller,
|
|
IN PCI_IO_DEVICE *RootBridge,
|
|
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath,
|
|
IN OUT UINT8 *NumberOfChildren,
|
|
IN OUT EFI_HANDLE *ChildHandleBuffer
|
|
);
|
|
|
|
/**
|
|
Start to manage all the PCI devices it found previously under
|
|
the entire host bridge.
|
|
|
|
@param Controller The root bridge handle.
|
|
|
|
@retval EFI_NOT_READY Device is not allocated.
|
|
@retval EFI_SUCCESS Success to start Pci device on host bridge.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
StartPciDevices (
|
|
IN EFI_HANDLE Controller
|
|
);
|
|
|
|
/**
|
|
Create root bridge device.
|
|
|
|
@param RootBridgeHandle Specified root bridge handle.
|
|
|
|
@return The crated root bridge device instance, NULL means no
|
|
root bridge device instance created.
|
|
|
|
**/
|
|
PCI_IO_DEVICE *
|
|
CreateRootBridge (
|
|
IN EFI_HANDLE RootBridgeHandle
|
|
);
|
|
|
|
/**
|
|
Get root bridge device instance by specific root bridge handle.
|
|
|
|
@param RootBridgeHandle Given root bridge handle.
|
|
|
|
@return The root bridge device instance, NULL means no root bridge
|
|
device instance found.
|
|
|
|
**/
|
|
PCI_IO_DEVICE *
|
|
GetRootBridgeByHandle (
|
|
EFI_HANDLE RootBridgeHandle
|
|
);
|
|
|
|
|
|
/**
|
|
Judge whether Pci device existed.
|
|
|
|
@param Bridge Parent bridge instance.
|
|
@param PciIoDevice Device instance.
|
|
|
|
@retval TRUE Pci device existed.
|
|
@retval FALSE Pci device did not exist.
|
|
|
|
**/
|
|
BOOLEAN
|
|
PciDeviceExisted (
|
|
IN PCI_IO_DEVICE *Bridge,
|
|
IN PCI_IO_DEVICE *PciIoDevice
|
|
);
|
|
|
|
/**
|
|
Get the active VGA device on the specified Host Bridge.
|
|
|
|
@param HostBridgeHandle Host Bridge handle.
|
|
|
|
@return The active VGA device on the specified Host Bridge.
|
|
|
|
**/
|
|
PCI_IO_DEVICE *
|
|
LocateVgaDeviceOnHostBridge (
|
|
IN EFI_HANDLE HostBridgeHandle
|
|
);
|
|
|
|
/**
|
|
Locate the active VGA device under the bridge.
|
|
|
|
@param Bridge PCI IO instance for the bridge.
|
|
|
|
@return The active VGA device.
|
|
|
|
**/
|
|
PCI_IO_DEVICE *
|
|
LocateVgaDevice (
|
|
IN PCI_IO_DEVICE *Bridge
|
|
);
|
|
|
|
|
|
/**
|
|
Destroy a pci device node.
|
|
|
|
All direct or indirect allocated resource for this node will be freed.
|
|
|
|
@param PciIoDevice A pointer to the PCI_IO_DEVICE to be destroyed.
|
|
|
|
**/
|
|
VOID
|
|
FreePciDevice (
|
|
IN PCI_IO_DEVICE *PciIoDevice
|
|
);
|
|
|
|
#endif
|