3 Copyright (c) 2006 - 2007, Intel Corporation
4 All rights reserved. This program and the accompanying materials
5 are licensed and made available under the terms and conditions of the BSD License
6 which accompanies this distribution. The full text of the license may be found at
7 http://opensource.org/licenses/bsd-license.php
9 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
10 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
27 InitializePciDriverOverrideInstance (
28 PCI_IO_DEVICE
*PciIoDevice
34 Initializes a PCI Driver Override Instance
43 // TODO: PciIoDevice - add argument and description to function comment
44 // TODO: EFI_SUCCESS - add return value to function comment
46 PciIoDevice
->PciDriverOverride
.GetDriver
= GetDriver
;
53 IN EFI_BUS_SPECIFIC_DRIVER_OVERRIDE_PROTOCOL
*This
,
54 IN OUT EFI_HANDLE
*DriverImageHandle
60 Get a overriding driver image
69 // TODO: This - add argument and description to function comment
70 // TODO: DriverImageHandle - add argument and description to function comment
71 // TODO: EFI_SUCCESS - add return value to function comment
72 // TODO: EFI_NOT_FOUND - add return value to function comment
73 // TODO: EFI_SUCCESS - add return value to function comment
74 // TODO: EFI_INVALID_PARAMETER - add return value to function comment
76 PCI_IO_DEVICE
*PciIoDevice
;
77 LIST_ENTRY
*CurrentLink
;
78 PCI_DRIVER_OVERRIDE_LIST
*Node
;
80 PciIoDevice
= PCI_IO_DEVICE_FROM_PCI_DRIVER_OVERRIDE_THIS (This
);
82 CurrentLink
= PciIoDevice
->OptionRomDriverList
.ForwardLink
;
84 while (CurrentLink
&& CurrentLink
!= &PciIoDevice
->OptionRomDriverList
) {
86 Node
= DRIVER_OVERRIDE_FROM_LINK (CurrentLink
);
88 if (*DriverImageHandle
== NULL
) {
90 *DriverImageHandle
= Node
->DriverImageHandle
;
94 if (*DriverImageHandle
== Node
->DriverImageHandle
) {
96 if (CurrentLink
->ForwardLink
== &PciIoDevice
->OptionRomDriverList
||
97 CurrentLink
->ForwardLink
== NULL
) {
104 Node
= DRIVER_OVERRIDE_FROM_LINK (CurrentLink
->ForwardLink
);
105 *DriverImageHandle
= Node
->DriverImageHandle
;
109 CurrentLink
= CurrentLink
->ForwardLink
;
112 return EFI_INVALID_PARAMETER
;
117 IN PCI_IO_DEVICE
*PciIoDevice
,
118 IN EFI_HANDLE DriverImageHandle
124 Add a overriding driver image
133 // TODO: PciIoDevice - add argument and description to function comment
134 // TODO: DriverImageHandle - add argument and description to function comment
135 // TODO: EFI_OUT_OF_RESOURCES - add return value to function comment
136 // TODO: EFI_SUCCESS - add return value to function comment
137 // TODO: EFI_SUCCESS - add return value to function comment
138 // TODO: EFI_SUCCESS - add return value to function comment
139 // TODO: EFI_SUCCESS - add return value to function comment
142 EFI_IMAGE_DOS_HEADER
*DosHdr
;
143 EFI_IMAGE_NT_HEADERS
*PeHdr
;
144 EFI_LOADED_IMAGE_PROTOCOL
*LoadedImage
;
145 PCI_DRIVER_OVERRIDE_LIST
*Node
;
147 Status
= gBS
->HandleProtocol (DriverImageHandle
, &gEfiLoadedImageProtocolGuid
, (VOID
**) &LoadedImage
);
148 if (EFI_ERROR (Status
)) {
152 Node
= AllocatePool (sizeof (PCI_DRIVER_OVERRIDE_LIST
));
154 return EFI_OUT_OF_RESOURCES
;
157 Node
->Signature
= DRIVER_OVERRIDE_SIGNATURE
;
158 Node
->DriverImageHandle
= DriverImageHandle
;
160 InsertTailList (&PciIoDevice
->OptionRomDriverList
, &(Node
->Link
));
162 PciIoDevice
->BusOverride
= TRUE
;
164 DosHdr
= (EFI_IMAGE_DOS_HEADER
*) LoadedImage
->ImageBase
;
165 if (DosHdr
->e_magic
!= EFI_IMAGE_DOS_SIGNATURE
) {
169 PeHdr
= (EFI_IMAGE_NT_HEADERS
*) ((UINTN
) LoadedImage
->ImageBase
+ DosHdr
->e_lfanew
);
171 if (PeHdr
->FileHeader
.Machine
!= EFI_IMAGE_MACHINE_EBC
) {