mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-11-24 11:45:27 +01:00
84 lines
2.7 KiB
C
84 lines
2.7 KiB
C
/** @file
|
|
Functions declaration for Bus Specific Driver Override protocol.
|
|
|
|
Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.<BR>
|
|
SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
|
|
**/
|
|
|
|
|
|
#ifndef _EFI_PCI_DRIVER_OVERRRIDE_H_
|
|
#define _EFI_PCI_DRIVER_OVERRRIDE_H_
|
|
|
|
#define DRIVER_OVERRIDE_SIGNATURE SIGNATURE_32 ('d', 'r', 'o', 'v')
|
|
|
|
//
|
|
// PCI driver override driver image list
|
|
//
|
|
typedef struct {
|
|
UINT32 Signature;
|
|
LIST_ENTRY Link;
|
|
EFI_HANDLE DriverImageHandle;
|
|
EFI_DEVICE_PATH_PROTOCOL *DriverImagePath;
|
|
} PCI_DRIVER_OVERRIDE_LIST;
|
|
|
|
|
|
#define DRIVER_OVERRIDE_FROM_LINK(a) \
|
|
CR (a, PCI_DRIVER_OVERRIDE_LIST, Link, DRIVER_OVERRIDE_SIGNATURE)
|
|
|
|
/**
|
|
Initializes a PCI Driver Override Instance.
|
|
|
|
@param PciIoDevice PCI Device instance.
|
|
|
|
**/
|
|
VOID
|
|
InitializePciDriverOverrideInstance (
|
|
IN OUT PCI_IO_DEVICE *PciIoDevice
|
|
);
|
|
|
|
/**
|
|
Add an overriding driver image.
|
|
|
|
@param PciIoDevice Instance of PciIo device.
|
|
@param DriverImageHandle Image handle of newly added driver image.
|
|
@param DriverImagePath Device path of newly added driver image.
|
|
|
|
@retval EFI_SUCCESS Successfully added driver.
|
|
@retval EFI_OUT_OF_RESOURCES No memory resource for new driver instance.
|
|
@retval other Some error occurred when locating gEfiLoadedImageProtocolGuid.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
AddDriver (
|
|
IN PCI_IO_DEVICE *PciIoDevice,
|
|
IN EFI_HANDLE DriverImageHandle,
|
|
IN EFI_DEVICE_PATH_PROTOCOL *DriverImagePath
|
|
);
|
|
|
|
|
|
/**
|
|
Uses a bus specific algorithm to retrieve a driver image handle for a controller.
|
|
|
|
@param This A pointer to the EFI_BUS_SPECIFIC_DRIVER_OVERRIDE_PROTOCOL instance.
|
|
@param DriverImageHandle On input, a pointer to the previous driver image handle returned
|
|
by GetDriver(). On output, a pointer to the next driver
|
|
image handle. Passing in a NULL, will return the first driver
|
|
image handle.
|
|
|
|
@retval EFI_SUCCESS A bus specific override driver is returned in DriverImageHandle.
|
|
@retval EFI_NOT_FOUND The end of the list of override drivers was reached.
|
|
A bus specific override driver is not returned in DriverImageHandle.
|
|
@retval EFI_INVALID_PARAMETER DriverImageHandle is not a handle that was returned on a
|
|
previous call to GetDriver().
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
GetDriver (
|
|
IN EFI_BUS_SPECIFIC_DRIVER_OVERRIDE_PROTOCOL *This,
|
|
IN OUT EFI_HANDLE *DriverImageHandle
|
|
);
|
|
|
|
#endif
|