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Diffstat (limited to 'EdkCompatibilityPkg/Foundation/Efi/Protocol/DevicePathUtilities/DevicePathUtilities.h')
-rw-r--r-- | EdkCompatibilityPkg/Foundation/Efi/Protocol/DevicePathUtilities/DevicePathUtilities.h | 225 |
1 files changed, 225 insertions, 0 deletions
diff --git a/EdkCompatibilityPkg/Foundation/Efi/Protocol/DevicePathUtilities/DevicePathUtilities.h b/EdkCompatibilityPkg/Foundation/Efi/Protocol/DevicePathUtilities/DevicePathUtilities.h new file mode 100644 index 0000000000..6cf2c69533 --- /dev/null +++ b/EdkCompatibilityPkg/Foundation/Efi/Protocol/DevicePathUtilities/DevicePathUtilities.h @@ -0,0 +1,225 @@ +/*++
+
+Copyright (c) 2006 - 2007, Intel Corporation
+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:
+
+ DevicePathUtilities.h
+
+Abstract:
+
+--*/
+
+#ifndef _DEVICE_PATH_UTILITIES_PROTOCOL_H_
+#define _DEVICE_PATH_UTILITIES_PROTOCOL_H_
+
+//
+// Device Path Utilities protocol
+//
+#define EFI_DEVICE_PATH_UTILITIES_PROTOCOL_GUID \
+ { \
+ 0x379be4e, 0xd706, 0x437d, 0xb0, 0x37, 0xed, 0xb8, 0x2f, 0xb7, 0x72, 0xa4 \
+ }
+
+typedef
+UINTN
+(EFIAPI *EFI_DEVICE_PATH_UTILS_GET_DEVICE_PATH_SIZE) (
+ IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath
+ )
+/*++
+
+ Routine Description:
+ Returns the size of the device path, in bytes.
+
+ Arguments:
+ DevicePath - Points to the start of the EFI device path.
+
+ Returns:
+ Size - Size of the specified device path, in bytes, including the end-of-path tag.
+
+--*/
+;
+
+typedef
+EFI_DEVICE_PATH_PROTOCOL*
+(EFIAPI *EFI_DEVICE_PATH_UTILS_DUP_DEVICE_PATH) (
+ IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath
+ )
+/*++
+
+ Routine Description:
+ Create a duplicate of the specified path.
+
+ Arguments:
+ DevicePath - Points to the source EFI device path.
+
+ Returns:
+ Pointer - A pointer to the duplicate device path.
+ NULL - Insufficient memory.
+
+--*/
+;
+
+typedef
+EFI_DEVICE_PATH_PROTOCOL*
+(EFIAPI *EFI_DEVICE_PATH_UTILS_APPEND_PATH) (
+ IN CONST EFI_DEVICE_PATH_PROTOCOL *Src1,
+ IN CONST EFI_DEVICE_PATH_PROTOCOL *Src2
+ )
+/*++
+
+ Routine Description:
+ Create a new path by appending the second device path to the first.
+
+ Arguments:
+ Src1 - Points to the first device path. If NULL, then it is ignored.
+ Src2 - Points to the second device path. If NULL, then it is ignored.
+
+ Returns:
+ Pointer - A pointer to the newly created device path.
+ NULL - Memory could not be allocated
+ or either DevicePath or DeviceNode is NULL.
+
+--*/
+;
+
+typedef
+EFI_DEVICE_PATH_PROTOCOL*
+(EFIAPI *EFI_DEVICE_PATH_UTILS_APPEND_NODE) (
+ IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath,
+ IN CONST EFI_DEVICE_PATH_PROTOCOL *DeviceNode
+ )
+/*++
+
+ Routine Description:
+ Creates a new path by appending the device node to the device path.
+
+ Arguments:
+ DevicePath - Points to the device path.
+ DeviceNode - Points to the device node.
+
+ Returns:
+ Pointer - A pointer to the allocated device node.
+ NULL - Memory could not be allocated
+ or either DevicePath or DeviceNode is NULL.
+
+--*/
+;
+
+typedef
+EFI_DEVICE_PATH_PROTOCOL*
+(EFIAPI *EFI_DEVICE_PATH_UTILS_APPEND_INSTANCE) (
+ IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath,
+ IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePathInstance
+ )
+/*++
+
+ Routine Description:
+ Creates a new path by appending the specified device path instance to the specified device path.
+
+ Arguments:
+ DevicePath - Points to the device path. If NULL, then ignored.
+ DevicePathInstance - Points to the device path instance.
+
+ Returns:
+ Pointer - A pointer to the newly created device path
+ NULL - Memory could not be allocated or DevicePathInstance is NULL.
+
+--*/
+;
+
+typedef
+EFI_DEVICE_PATH_PROTOCOL*
+(EFIAPI *EFI_DEVICE_PATH_UTILS_GET_NEXT_INSTANCE) (
+ IN OUT EFI_DEVICE_PATH_PROTOCOL **DevicePathInstance,
+ OUT UINTN *DevicePathInstanceSize
+ )
+/*++
+
+ Routine Description:
+ Creates a copy of the current device path instance and returns a pointer to the next device path instance.
+
+ Arguments:
+ DevicePathInstance - 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.
+ DevicePathInstanceSize - On output, this holds the size of the device path instance,
+ in bytes or zero, if DevicePathInstance is zero.
+
+ Returns:
+ Pointer - A pointer to the copy of the current device path instance.
+ NULL - DevicePathInstace was NULL on entry or there was insufficient memory.
+
+--*/
+;
+
+typedef
+BOOLEAN
+(EFIAPI *EFI_DEVICE_PATH_UTILS_IS_MULTI_INSTANCE) (
+ IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath
+ )
+/*++
+
+ Routine Description:
+ Returns whether a device path is multi-instance.
+
+ Arguments:
+ DevicePath - Points to the device path. If NULL, then ignored.
+
+ Returns:
+ TRUE - The device path has more than one instance
+ FALSE - The device path is empty or contains only a single instance.
+
+--*/
+;
+
+typedef
+EFI_DEVICE_PATH_PROTOCOL*
+(EFIAPI *EFI_DEVICE_PATH_UTILS_CREATE_NODE) (
+ IN UINT8 NodeType,
+ IN UINT8 NodeSubType,
+ IN UINT16 NodeLength
+ )
+/*++
+
+ Routine Description:
+ Creates a device node
+
+ Arguments:
+ NodeType - NodeType is the device node type (EFI_DEVICE_PATH.Type) for
+ the new device node.
+ NodeSubType - NodeSubType is the device node sub-type
+ EFI_DEVICE_PATH.SubType) for the new device node.
+ NodeLength - NodeLength is the length of the device node
+ (EFI_DEVICE_PATH.Length) for the new device node.
+
+ Returns:
+ Pointer - A pointer to the newly created device node.
+ NULL - NodeLength is less than
+ the size of the header or there was insufficient memory.
+
+--*/
+;
+
+typedef struct {
+ EFI_DEVICE_PATH_UTILS_GET_DEVICE_PATH_SIZE GetDevicePathSize;
+ EFI_DEVICE_PATH_UTILS_DUP_DEVICE_PATH DuplicateDevicePath;
+ EFI_DEVICE_PATH_UTILS_APPEND_PATH AppendDevicePath;
+ EFI_DEVICE_PATH_UTILS_APPEND_NODE AppendDeviceNode;
+ EFI_DEVICE_PATH_UTILS_APPEND_INSTANCE AppendDevicePathInstance;
+ EFI_DEVICE_PATH_UTILS_GET_NEXT_INSTANCE GetNextDevicePathInstance;
+ EFI_DEVICE_PATH_UTILS_IS_MULTI_INSTANCE IsDevicePathMultiInstance;
+ EFI_DEVICE_PATH_UTILS_CREATE_NODE CreateDeviceNode;
+} EFI_DEVICE_PATH_UTILITIES_PROTOCOL;
+
+extern EFI_GUID gEfiDevicePathUtilitiesProtocolGuid;
+
+#endif
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