diff options
Diffstat (limited to 'MdePkg/Library/UefiDevicePathLibDevicePathProtocol/UefiDevicePathLib.c')
| -rw-r--r-- | MdePkg/Library/UefiDevicePathLibDevicePathProtocol/UefiDevicePathLib.c | 348 |
1 files changed, 0 insertions, 348 deletions
diff --git a/MdePkg/Library/UefiDevicePathLibDevicePathProtocol/UefiDevicePathLib.c b/MdePkg/Library/UefiDevicePathLibDevicePathProtocol/UefiDevicePathLib.c deleted file mode 100644 index ec9b4aa321..0000000000 --- a/MdePkg/Library/UefiDevicePathLibDevicePathProtocol/UefiDevicePathLib.c +++ /dev/null @@ -1,348 +0,0 @@ -/** @file
- UEFI Device Path Library.
-
- Copyright (c) 2006, Intel Corporation<BR>
- 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.
-
- Module Name: UefiDevicePathLib.c
-
-**/
-
-STATIC EFI_DEVICE_PATH_UTILITIES_PROTOCOL *mDevicePathUtilities = NULL;
-
-/**
- The constructor function caches the pointer to DevicePathUtilites protocol.
-
- The constructor function locates DevicePathUtilities protocol from protocol database.
- It will ASSERT() if that operation fails and it will always return EFI_SUCCESS.
-
- @param ImageHandle The firmware allocated handle for the EFI image.
- @param SystemTable A pointer to the EFI System Table.
-
- @retval EFI_SUCCESS The constructor always returns EFI_SUCCESS.
-
-**/
-EFI_STATUS
-EFIAPI
-DevicePathLibConstructor (
- IN EFI_HANDLE ImageHandle,
- IN EFI_SYSTEM_TABLE *SystemTable
- )
-{
- EFI_STATUS Status;
-
- Status = gBS->LocateProtocol (
- &gEfiDevicePathUtilitiesProtocolGuid,
- NULL,
- (VOID**) &mDevicePathUtilities
- );
- ASSERT_EFI_ERROR (Status);
- ASSERT (mDevicePathUtilities != NULL);
-
- return Status;
-}
-
-/**
- Returns the size of a device path in bytes.
-
- This function returns the size, in bytes, of the device path data structure specified by
- DevicePath including the end of device path node. If DevicePath is NULL, then 0 is returned.
-
- @param DevicePath A pointer to a device path data structure.
-
- @return The size of a device path in bytes.
-
-**/
-UINTN
-EFIAPI
-GetDevicePathSize (
- IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath
- )
-{
- return mDevicePathUtilities->GetDevicePathSize (DevicePath);
-}
-
-/**
- Creates a new device path by appending a second device path to a first device path.
-
- This function allocates space for a new copy of the device path specified by DevicePath. If
- DevicePath is NULL, then NULL is returned. If the memory is successfully allocated, then the
- contents of DevicePath are copied to the newly allocated buffer, and a pointer to that buffer
- is returned. Otherwise, NULL is returned.
-
- @param DevicePath A pointer to a device path data structure.
-
- @return A pointer to the duplicated device path.
-
-**/
-EFI_DEVICE_PATH_PROTOCOL *
-EFIAPI
-DuplicateDevicePath (
- IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath
- )
-{
- return mDevicePathUtilities->DuplicateDevicePath (DevicePath);
-}
-
-/**
- Creates a new device path by appending a second device path to a first device path.
-
- This function creates a new device path by appending a copy of SecondDevicePath to a copy of
- FirstDevicePath in a newly allocated buffer. Only the end-of-device-path device node from
- SecondDevicePath is retained. The newly created device path is returned.
- If FirstDevicePath is NULL, then it is ignored, and a duplicate of SecondDevicePath is returned.
- If SecondDevicePath is NULL, then it is ignored, and a duplicate of FirstDevicePath is returned.
- If both FirstDevicePath and SecondDevicePath are NULL, then NULL is returned.
- If there is not enough memory for the newly allocated buffer, then NULL is returned.
- The memory for the new device path is allocated from EFI boot services memory. It is the
- responsibility of the caller to free the memory allocated.
-
- @param FirstDevicePath A pointer to a device path data structure.
- @param SecondDevicePath A pointer to a device path data structure.
-
- @return A pointer to the new device path.
-
-**/
-EFI_DEVICE_PATH_PROTOCOL *
-EFIAPI
-AppendDevicePath (
- IN CONST EFI_DEVICE_PATH_PROTOCOL *FirstDevicePath, OPTIONAL
- IN CONST EFI_DEVICE_PATH_PROTOCOL *SecondDevicePath OPTIONAL
- )
-{
- return mDevicePathUtilities->AppendDevicePath (FirstDevicePath, SecondDevicePath);
-}
-
-/**
- Creates a new path by appending the device node to the device path.
-
- This function creates a new device path by appending a copy of the device node specified by
- DevicePathNode to a copy of the device path specified by DevicePath in an allocated buffer.
- The end-of-device-path device node is moved after the end of the appended device node.
- If DevicePath is NULL, then NULL is returned.
- If DevicePathNode is NULL, then NULL is returned.
- If there is not enough memory to allocate space for the new device path, then NULL is returned.
- The memory is allocated from EFI boot services memory. It is the responsibility of the caller to
- free the memory allocated.
-
- @param DevicePath A pointer to a device path data structure.
- @param DevicePathNode A pointer to a single device path node.
-
- @return A pointer to the new device path.
-
-**/
-EFI_DEVICE_PATH_PROTOCOL *
-EFIAPI
-AppendDevicePathNode (
- IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath, OPTIONAL
- IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePathNode OPTIONAL
- )
-{
- return mDevicePathUtilities->AppendDeviceNode (DevicePath, DevicePathNode);
-}
-
-/**
- Creates a new device path by appending the specified device path instance to the specified device
- path.
-
- This function creates a new device path by appending a copy of the device path instance specified
- by DevicePathInstance to a copy of the device path secified by DevicePath in a allocated buffer.
- The end-of-device-path device node is moved after the end of the appended device path instance
- and a new end-of-device-path-instance node is inserted between.
- If DevicePath is NULL, then a copy if DevicePathInstance is returned.
- If DevicePathInstance is NULL, then NULL is returned.
- If there is not enough memory to allocate space for the new device path, then NULL is returned.
- The memory is allocated from EFI boot services memory. It is the responsibility of the caller to
- free the memory allocated.
-
- @param DevicePath A pointer to a device path data structure.
- @param DevicePathInstance A pointer to a device path instance.
-
- @return A pointer to the new device path.
-
-**/
-EFI_DEVICE_PATH_PROTOCOL *
-EFIAPI
-AppendDevicePathInstance (
- IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath, OPTIONAL
- IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePathInstance OPTIONAL
- )
-{
- return mDevicePathUtilities->AppendDevicePathInstance (DevicePath, DevicePathInstance);
-}
-
-/**
- Creates a copy of the current device path instance and returns a pointer to the next device path
- instance.
-
- This function creates a copy of the current device path instance. It also updates DevicePath to
- point to the next device path instance in the device path (or NULL if no more) and updates Size
- to hold the size of the device path instance copy.
- If DevicePath is NULL, then NULL is returned.
- If there is not enough memory to allocate space for the new device path, then NULL is returned.
- The memory is allocated from EFI boot services memory. It is the responsibility of the caller to
- free the memory allocated.
- If Size is NULL, then ASSERT().
-
- @param DevicePath On input, this holds the pointer to the current device path
- instance. On output, this holds the pointer to the next device
- path instance or NULL if there are no more device path
- instances in the device path pointer to a device path data
- structure.
- @param Size On output, this holds the size of the device path instance, in
- bytes or zero, if DevicePath is NULL.
-
- @return A pointer to the current device path instance.
-
-**/
-EFI_DEVICE_PATH_PROTOCOL *
-EFIAPI
-GetNextDevicePathInstance (
- IN OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath,
- OUT UINTN *Size
- )
-{
- ASSERT (Size != NULL);
- return mDevicePathUtilities->GetNextDevicePathInstance (DevicePath, Size);
-}
-
-/**
- Creates a copy of the current device path instance and returns a pointer to the next device path
- instance.
-
- This function creates a new device node in a newly allocated buffer of size NodeLength and
- initializes the device path node header with NodeType and NodeSubType. The new device path node
- is returned.
- If NodeLength is smaller than a device path header, then NULL is returned.
- If there is not enough memory to allocate space for the new device path, then NULL is returned.
- The memory is allocated from EFI boot services memory. It is the responsibility of the caller to
- free the memory allocated.
-
- @param NodeType The device node type for the new device node.
- @param NodeSubType The device node sub-type for the new device node.
- @param NodeLength The length of the new device node.
-
- @return The new device path.
-
-**/
-EFI_DEVICE_PATH_PROTOCOL *
-EFIAPI
-CreateDeviceNode (
- IN UINT8 NodeType,
- IN UINT8 NodeSubType,
- IN UINT16 NodeLength
- )
-{
- return mDevicePathUtilities->CreateDeviceNode (NodeType, NodeSubType, NodeLength);
-}
-
-/**
- Determines if a device path is single or multi-instance.
-
- This function returns TRUE if the device path specified by DevicePath is multi-instance.
- Otherwise, FALSE is returned. If DevicePath is NULL, then FALSE is returned.
-
- @param DevicePath A pointer to a device path data structure.
-
- @retval TRUE DevicePath is multi-instance.
- @retval FALSE DevicePath is not multi-instance or DevicePath is NULL.
-
-**/
-BOOLEAN
-EFIAPI
-IsDevicePathMultiInstance (
- IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath
- )
-{
- return mDevicePathUtilities->IsDevicePathMultiInstance (DevicePath);
-}
-
-/**
- Retrieves the device path protocol from a handle.
-
- This function returns the device path protocol from the handle specified by Handle. If Handle is
- NULL or Handle does not contain a device path protocol, then NULL is returned.
-
- @param Handle The handle from which to retrieve the device path protocol.
-
- @return The device path protocol from the handle specified by Handle.
-
-**/
-EFI_DEVICE_PATH_PROTOCOL *
-EFIAPI
-DevicePathFromHandle (
- IN EFI_HANDLE Handle
- )
-{
- EFI_DEVICE_PATH_PROTOCOL *DevicePath;
- EFI_STATUS Status;
-
- Status = gBS->HandleProtocol (
- Handle,
- &gEfiDevicePathProtocolGuid,
- (VOID *) &DevicePath
- );
- if (EFI_ERROR (Status)) {
- DevicePath = NULL;
- }
- return DevicePath;
-}
-
-/**
- Allocates a device path for a file and appends it to an existing device path.
-
- If Device is a valid device handle that contains a device path protocol, then a device path for
- the file specified by FileName is allocated and appended to the device path associated with the
- handle Device. The allocated device path is returned. If Device is NULL or Device is a handle
- that does not support the device path protocol, then a device path containing a single device
- path node for the file specified by FileName is allocated and returned.
- If FileName is NULL, then ASSERT().
-
- @param Device A pointer to a device handle. This parameter is optional and
- may be NULL.
- @param FileName A pointer to a Null-terminated Unicode string.
-
- @return The allocated device path.
-
-**/
-EFI_DEVICE_PATH_PROTOCOL *
-EFIAPI
-FileDevicePath (
- IN EFI_HANDLE Device, OPTIONAL
- IN CONST CHAR16 *FileName
- )
-{
- UINTN Size;
- FILEPATH_DEVICE_PATH *FilePath;
- EFI_DEVICE_PATH_PROTOCOL *DevicePath;
- EFI_DEVICE_PATH_PROTOCOL *FileDevicePath;
-
- DevicePath = NULL;
-
- Size = StrSize (FileName);
- FileDevicePath = AllocatePool (Size + SIZE_OF_FILEPATH_DEVICE_PATH + EFI_END_DEVICE_PATH_LENGTH);
- if (FileDevicePath != NULL) {
- FilePath = (FILEPATH_DEVICE_PATH *) FileDevicePath;
- FilePath->Header.Type = MEDIA_DEVICE_PATH;
- FilePath->Header.SubType = MEDIA_FILEPATH_DP;
- CopyMem (&FilePath->PathName, FileName, Size);
- SetDevicePathNodeLength (&FilePath->Header, Size + SIZE_OF_FILEPATH_DEVICE_PATH);
- SetDevicePathEndNode (NextDevicePathNode (&FilePath->Header));
-
- if (Device != NULL) {
- DevicePath = DevicePathFromHandle (Device);
- }
-
- DevicePath = AppendDevicePath (DevicePath, FileDevicePath);
- FreePool (FileDevicePath);
- }
-
- return DevicePath;
-}
-
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