diff options
Diffstat (limited to 'BaseTools/Source/C/DevicePath/UefiDevicePathLib.h')
| -rw-r--r-- | BaseTools/Source/C/DevicePath/UefiDevicePathLib.h | 878 |
1 files changed, 439 insertions, 439 deletions
diff --git a/BaseTools/Source/C/DevicePath/UefiDevicePathLib.h b/BaseTools/Source/C/DevicePath/UefiDevicePathLib.h index 1c171c8085..4e855accf6 100644 --- a/BaseTools/Source/C/DevicePath/UefiDevicePathLib.h +++ b/BaseTools/Source/C/DevicePath/UefiDevicePathLib.h @@ -1,439 +1,439 @@ -/** @file
- Definition for Device Path library.
-
-Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>
-SPDX-License-Identifier: BSD-2-Clause-Patent
-
-**/
-#ifndef _UEFI_DEVICE_PATH_LIB_H_
-#define _UEFI_DEVICE_PATH_LIB_H_
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <ctype.h>
-#include <assert.h>
-#ifdef __GNUC__
-#include <unistd.h>
-#else
-#include <direct.h>
-#endif
-#include <Common/UefiBaseTypes.h>
-#include <Protocol/DevicePath.h>
-#include <Protocol/DevicePathUtilities.h>
-#include "CommonLib.h"
-#include "EfiUtilityMsgs.h"
-
-#define END_DEVICE_PATH_LENGTH (sizeof (EFI_DEVICE_PATH_PROTOCOL))
-#define MAX_DEVICE_PATH_NODE_COUNT 1024
-#define SIZE_64KB 0x00010000
-
-//
-// Private Data structure
-//
-typedef
-EFI_DEVICE_PATH_PROTOCOL *
-(*DEVICE_PATH_FROM_TEXT) (
- IN CHAR16 *Str
- );
-
-typedef struct {
- CHAR16 *Str;
- UINTN Count;
- UINTN Capacity;
-} POOL_PRINT;
-
-
-typedef struct {
- CHAR16 *DevicePathNodeText;
- DEVICE_PATH_FROM_TEXT Function;
-} DEVICE_PATH_FROM_TEXT_TABLE;
-
-typedef struct {
- BOOLEAN ClassExist;
- UINT8 Class;
- BOOLEAN SubClassExist;
- UINT8 SubClass;
-} USB_CLASS_TEXT;
-
-#define USB_CLASS_AUDIO 1
-#define USB_CLASS_CDCCONTROL 2
-#define USB_CLASS_HID 3
-#define USB_CLASS_IMAGE 6
-#define USB_CLASS_PRINTER 7
-#define USB_CLASS_MASS_STORAGE 8
-#define USB_CLASS_HUB 9
-#define USB_CLASS_CDCDATA 10
-#define USB_CLASS_SMART_CARD 11
-#define USB_CLASS_VIDEO 14
-#define USB_CLASS_DIAGNOSTIC 220
-#define USB_CLASS_WIRELESS 224
-
-#define USB_CLASS_RESERVE 254
-#define USB_SUBCLASS_FW_UPDATE 1
-#define USB_SUBCLASS_IRDA_BRIDGE 2
-#define USB_SUBCLASS_TEST 3
-
-#define RFC_1700_UDP_PROTOCOL 17
-#define RFC_1700_TCP_PROTOCOL 6
-
-#pragma pack(1)
-
-typedef struct {
- EFI_DEVICE_PATH_PROTOCOL Header;
- EFI_GUID Guid;
- UINT8 VendorDefinedData[1];
-} VENDOR_DEFINED_HARDWARE_DEVICE_PATH;
-
-typedef struct {
- EFI_DEVICE_PATH_PROTOCOL Header;
- EFI_GUID Guid;
- UINT8 VendorDefinedData[1];
-} VENDOR_DEFINED_MESSAGING_DEVICE_PATH;
-
-typedef struct {
- EFI_DEVICE_PATH_PROTOCOL Header;
- EFI_GUID Guid;
- UINT8 VendorDefinedData[1];
-} VENDOR_DEFINED_MEDIA_DEVICE_PATH;
-
-typedef struct {
- EFI_DEVICE_PATH_PROTOCOL Header;
- UINT32 Hid;
- UINT32 Uid;
- UINT32 Cid;
- CHAR8 HidUidCidStr[3];
-} ACPI_EXTENDED_HID_DEVICE_PATH_WITH_STR;
-
-typedef struct {
- EFI_DEVICE_PATH_PROTOCOL Header;
- UINT16 NetworkProtocol;
- UINT16 LoginOption;
- UINT64 Lun;
- UINT16 TargetPortalGroupTag;
- CHAR8 TargetName[1];
-} ISCSI_DEVICE_PATH_WITH_NAME;
-
-typedef struct {
- EFI_DEVICE_PATH_PROTOCOL Header;
- EFI_GUID Guid;
- UINT8 VendorDefinedData[1];
-} VENDOR_DEVICE_PATH_WITH_DATA;
-
-#pragma pack()
-
-/**
- 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 or invalid, then 0 is returned.
-
- @param DevicePath A pointer to a device path data structure.
-
- @retval 0 If DevicePath is NULL or invalid.
- @retval Others The size of a device path in bytes.
-
-**/
-UINTN
-UefiDevicePathLibGetDevicePathSize (
- CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath
- );
-
-/**
- Creates a new copy of an existing 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.
- 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 DevicePath A pointer to a device path data structure.
-
- @retval NULL DevicePath is NULL or invalid.
- @retval Others A pointer to the duplicated device path.
-
-**/
-EFI_DEVICE_PATH_PROTOCOL *
-UefiDevicePathLibDuplicateDevicePath (
- CONST EFI_DEVICE_PATH_PROTOCOL *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 a copy of an end-of-device-path 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.
-
- @retval NULL If there is not enough memory for the newly allocated buffer.
- @retval NULL If FirstDevicePath or SecondDevicePath is invalid.
- @retval Others A pointer to the new device path if success.
- Or a copy an end-of-device-path if both FirstDevicePath and SecondDevicePath are NULL.
-
-**/
-EFI_DEVICE_PATH_PROTOCOL *
-UefiDevicePathLibAppendDevicePath (
- CONST EFI_DEVICE_PATH_PROTOCOL *FirstDevicePath, OPTIONAL
- CONST EFI_DEVICE_PATH_PROTOCOL *SecondDevicePath OPTIONAL
- );
-
-/**
- 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 DevicePathNode is NULL then a copy of DevicePath is returned.
- If DevicePath is NULL then a copy of DevicePathNode, followed by an end-of-device
- path device node is returned.
- If both DevicePathNode and DevicePath are NULL then a copy of an end-of-device-path
- device node 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.
-
- @retval NULL If there is not enough memory for the new device path.
- @retval Others A pointer to the new device path if success.
- A copy of DevicePathNode followed by an end-of-device-path node
- if both FirstDevicePath and SecondDevicePath are NULL.
- A copy of an end-of-device-path node if both FirstDevicePath
- and SecondDevicePath are NULL.
-
-**/
-EFI_DEVICE_PATH_PROTOCOL *
-UefiDevicePathLibAppendDevicePathNode (
- CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath, OPTIONAL
- CONST EFI_DEVICE_PATH_PROTOCOL *DevicePathNode OPTIONAL
- );
-
-/**
- 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 specified
- 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 DevicePath or DevicePathInstance is invalid, 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 *
-UefiDevicePathLibAppendDevicePathInstance (
- CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath, OPTIONAL
- CONST EFI_DEVICE_PATH_PROTOCOL *DevicePathInstance OPTIONAL
- );
-
-/**
- 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 DevicePath points to a invalid device path, 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 *
-UefiDevicePathLibGetNextDevicePathInstance (
- EFI_DEVICE_PATH_PROTOCOL **DevicePath,
- UINTN *Size
- );
-
-/**
- Creates a device node.
-
- 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 *
-UefiDevicePathLibCreateDeviceNode (
- UINT8 NodeType,
- UINT8 NodeSubType,
- UINT16 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 or invalid, 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 or invalid.
-
-**/
-BOOLEAN
-UefiDevicePathLibIsDevicePathMultiInstance (
- CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath
- );
-
-/**
- Convert text to the binary representation of a device node.
-
- @param TextDeviceNode TextDeviceNode points to the text representation of a device
- node. Conversion starts with the first character and continues
- until the first non-device node character.
-
- @return A pointer to the EFI device node or NULL if TextDeviceNode is NULL or there was
- insufficient memory or text unsupported.
-
-**/
-EFI_DEVICE_PATH_PROTOCOL *
-UefiDevicePathLibConvertTextToDeviceNode (
- CONST CHAR16 *TextDeviceNode
- );
-
-/**
- Convert text to the binary representation of a device path.
-
-
- @param TextDevicePath TextDevicePath points to the text representation of a device
- path. Conversion starts with the first character and continues
- until the first non-device node character.
-
- @return A pointer to the allocated device path or NULL if TextDeviceNode is NULL or
- there was insufficient memory.
-
-**/
-EFI_DEVICE_PATH_PROTOCOL *
-UefiDevicePathLibConvertTextToDevicePath (
- CONST CHAR16 *TextDevicePath
- );
-
-EFI_DEVICE_PATH_PROTOCOL *
-CreateDeviceNode (
- UINT8 NodeType,
- UINT8 NodeSubType,
- UINT16 NodeLength
- );
-
-BOOLEAN
-IsDevicePathMultiInstance (
- CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath
- );
-
-EFI_DEVICE_PATH_PROTOCOL *
-GetNextDevicePathInstance (
- EFI_DEVICE_PATH_PROTOCOL **DevicePath,
- UINTN *Size
- );
-
-EFI_DEVICE_PATH_PROTOCOL *
-AppendDevicePathInstance (
- CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath, OPTIONAL
- CONST EFI_DEVICE_PATH_PROTOCOL *DevicePathInstance OPTIONAL
- );
-
-EFI_DEVICE_PATH_PROTOCOL *
-AppendDevicePathNode (
- CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath, OPTIONAL
- CONST EFI_DEVICE_PATH_PROTOCOL *DevicePathNode OPTIONAL
- );
-EFI_DEVICE_PATH_PROTOCOL *
-AppendDevicePath (
- CONST EFI_DEVICE_PATH_PROTOCOL *FirstDevicePath, OPTIONAL
- CONST EFI_DEVICE_PATH_PROTOCOL *SecondDevicePath OPTIONAL
- );
-
-EFI_DEVICE_PATH_PROTOCOL *
-DuplicateDevicePath (
- CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath
- );
-
-UINTN
-GetDevicePathSize (
- CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath
- );
-
-CHAR16 *
-ConvertDeviceNodeToText (
- CONST EFI_DEVICE_PATH_PROTOCOL *DeviceNode,
- BOOLEAN DisplayOnly,
- BOOLEAN AllowShortcuts
- );
-
-CHAR16 *
-ConvertDevicePathToText (
- CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath,
- BOOLEAN DisplayOnly,
- BOOLEAN AllowShortcuts
- );
-
-EFI_DEVICE_PATH_PROTOCOL *
-ConvertTextToDeviceNode (
- CONST CHAR16 *TextDeviceNode
- );
-
-EFI_DEVICE_PATH_PROTOCOL *
-ConvertTextToDevicePath (
- CONST CHAR16 *TextDevicePath
- );
-
-#endif
+/** @file + Definition for Device Path library. + +Copyright (c) 2017, Intel Corporation. All rights reserved.<BR> +SPDX-License-Identifier: BSD-2-Clause-Patent + +**/ +#ifndef _UEFI_DEVICE_PATH_LIB_H_ +#define _UEFI_DEVICE_PATH_LIB_H_ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <ctype.h> +#include <assert.h> +#ifdef __GNUC__ +#include <unistd.h> +#else +#include <direct.h> +#endif +#include <Common/UefiBaseTypes.h> +#include <Protocol/DevicePath.h> +#include <Protocol/DevicePathUtilities.h> +#include "CommonLib.h" +#include "EfiUtilityMsgs.h" + +#define END_DEVICE_PATH_LENGTH (sizeof (EFI_DEVICE_PATH_PROTOCOL)) +#define MAX_DEVICE_PATH_NODE_COUNT 1024 +#define SIZE_64KB 0x00010000 + +// +// Private Data structure +// +typedef +EFI_DEVICE_PATH_PROTOCOL * +(*DEVICE_PATH_FROM_TEXT) ( + IN CHAR16 *Str + ); + +typedef struct { + CHAR16 *Str; + UINTN Count; + UINTN Capacity; +} POOL_PRINT; + + +typedef struct { + CHAR16 *DevicePathNodeText; + DEVICE_PATH_FROM_TEXT Function; +} DEVICE_PATH_FROM_TEXT_TABLE; + +typedef struct { + BOOLEAN ClassExist; + UINT8 Class; + BOOLEAN SubClassExist; + UINT8 SubClass; +} USB_CLASS_TEXT; + +#define USB_CLASS_AUDIO 1 +#define USB_CLASS_CDCCONTROL 2 +#define USB_CLASS_HID 3 +#define USB_CLASS_IMAGE 6 +#define USB_CLASS_PRINTER 7 +#define USB_CLASS_MASS_STORAGE 8 +#define USB_CLASS_HUB 9 +#define USB_CLASS_CDCDATA 10 +#define USB_CLASS_SMART_CARD 11 +#define USB_CLASS_VIDEO 14 +#define USB_CLASS_DIAGNOSTIC 220 +#define USB_CLASS_WIRELESS 224 + +#define USB_CLASS_RESERVE 254 +#define USB_SUBCLASS_FW_UPDATE 1 +#define USB_SUBCLASS_IRDA_BRIDGE 2 +#define USB_SUBCLASS_TEST 3 + +#define RFC_1700_UDP_PROTOCOL 17 +#define RFC_1700_TCP_PROTOCOL 6 + +#pragma pack(1) + +typedef struct { + EFI_DEVICE_PATH_PROTOCOL Header; + EFI_GUID Guid; + UINT8 VendorDefinedData[1]; +} VENDOR_DEFINED_HARDWARE_DEVICE_PATH; + +typedef struct { + EFI_DEVICE_PATH_PROTOCOL Header; + EFI_GUID Guid; + UINT8 VendorDefinedData[1]; +} VENDOR_DEFINED_MESSAGING_DEVICE_PATH; + +typedef struct { + EFI_DEVICE_PATH_PROTOCOL Header; + EFI_GUID Guid; + UINT8 VendorDefinedData[1]; +} VENDOR_DEFINED_MEDIA_DEVICE_PATH; + +typedef struct { + EFI_DEVICE_PATH_PROTOCOL Header; + UINT32 Hid; + UINT32 Uid; + UINT32 Cid; + CHAR8 HidUidCidStr[3]; +} ACPI_EXTENDED_HID_DEVICE_PATH_WITH_STR; + +typedef struct { + EFI_DEVICE_PATH_PROTOCOL Header; + UINT16 NetworkProtocol; + UINT16 LoginOption; + UINT64 Lun; + UINT16 TargetPortalGroupTag; + CHAR8 TargetName[1]; +} ISCSI_DEVICE_PATH_WITH_NAME; + +typedef struct { + EFI_DEVICE_PATH_PROTOCOL Header; + EFI_GUID Guid; + UINT8 VendorDefinedData[1]; +} VENDOR_DEVICE_PATH_WITH_DATA; + +#pragma pack() + +/** + 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 or invalid, then 0 is returned. + + @param DevicePath A pointer to a device path data structure. + + @retval 0 If DevicePath is NULL or invalid. + @retval Others The size of a device path in bytes. + +**/ +UINTN +UefiDevicePathLibGetDevicePathSize ( + CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath + ); + +/** + Creates a new copy of an existing 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. + 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 DevicePath A pointer to a device path data structure. + + @retval NULL DevicePath is NULL or invalid. + @retval Others A pointer to the duplicated device path. + +**/ +EFI_DEVICE_PATH_PROTOCOL * +UefiDevicePathLibDuplicateDevicePath ( + CONST EFI_DEVICE_PATH_PROTOCOL *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 a copy of an end-of-device-path 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. + + @retval NULL If there is not enough memory for the newly allocated buffer. + @retval NULL If FirstDevicePath or SecondDevicePath is invalid. + @retval Others A pointer to the new device path if success. + Or a copy an end-of-device-path if both FirstDevicePath and SecondDevicePath are NULL. + +**/ +EFI_DEVICE_PATH_PROTOCOL * +UefiDevicePathLibAppendDevicePath ( + CONST EFI_DEVICE_PATH_PROTOCOL *FirstDevicePath, OPTIONAL + CONST EFI_DEVICE_PATH_PROTOCOL *SecondDevicePath OPTIONAL + ); + +/** + 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 DevicePathNode is NULL then a copy of DevicePath is returned. + If DevicePath is NULL then a copy of DevicePathNode, followed by an end-of-device + path device node is returned. + If both DevicePathNode and DevicePath are NULL then a copy of an end-of-device-path + device node 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. + + @retval NULL If there is not enough memory for the new device path. + @retval Others A pointer to the new device path if success. + A copy of DevicePathNode followed by an end-of-device-path node + if both FirstDevicePath and SecondDevicePath are NULL. + A copy of an end-of-device-path node if both FirstDevicePath + and SecondDevicePath are NULL. + +**/ +EFI_DEVICE_PATH_PROTOCOL * +UefiDevicePathLibAppendDevicePathNode ( + CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath, OPTIONAL + CONST EFI_DEVICE_PATH_PROTOCOL *DevicePathNode OPTIONAL + ); + +/** + 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 specified + 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 DevicePath or DevicePathInstance is invalid, 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 * +UefiDevicePathLibAppendDevicePathInstance ( + CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath, OPTIONAL + CONST EFI_DEVICE_PATH_PROTOCOL *DevicePathInstance OPTIONAL + ); + +/** + 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 DevicePath points to a invalid device path, 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 * +UefiDevicePathLibGetNextDevicePathInstance ( + EFI_DEVICE_PATH_PROTOCOL **DevicePath, + UINTN *Size + ); + +/** + Creates a device node. + + 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 * +UefiDevicePathLibCreateDeviceNode ( + UINT8 NodeType, + UINT8 NodeSubType, + UINT16 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 or invalid, 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 or invalid. + +**/ +BOOLEAN +UefiDevicePathLibIsDevicePathMultiInstance ( + CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath + ); + +/** + Convert text to the binary representation of a device node. + + @param TextDeviceNode TextDeviceNode points to the text representation of a device + node. Conversion starts with the first character and continues + until the first non-device node character. + + @return A pointer to the EFI device node or NULL if TextDeviceNode is NULL or there was + insufficient memory or text unsupported. + +**/ +EFI_DEVICE_PATH_PROTOCOL * +UefiDevicePathLibConvertTextToDeviceNode ( + CONST CHAR16 *TextDeviceNode + ); + +/** + Convert text to the binary representation of a device path. + + + @param TextDevicePath TextDevicePath points to the text representation of a device + path. Conversion starts with the first character and continues + until the first non-device node character. + + @return A pointer to the allocated device path or NULL if TextDeviceNode is NULL or + there was insufficient memory. + +**/ +EFI_DEVICE_PATH_PROTOCOL * +UefiDevicePathLibConvertTextToDevicePath ( + CONST CHAR16 *TextDevicePath + ); + +EFI_DEVICE_PATH_PROTOCOL * +CreateDeviceNode ( + UINT8 NodeType, + UINT8 NodeSubType, + UINT16 NodeLength + ); + +BOOLEAN +IsDevicePathMultiInstance ( + CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath + ); + +EFI_DEVICE_PATH_PROTOCOL * +GetNextDevicePathInstance ( + EFI_DEVICE_PATH_PROTOCOL **DevicePath, + UINTN *Size + ); + +EFI_DEVICE_PATH_PROTOCOL * +AppendDevicePathInstance ( + CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath, OPTIONAL + CONST EFI_DEVICE_PATH_PROTOCOL *DevicePathInstance OPTIONAL + ); + +EFI_DEVICE_PATH_PROTOCOL * +AppendDevicePathNode ( + CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath, OPTIONAL + CONST EFI_DEVICE_PATH_PROTOCOL *DevicePathNode OPTIONAL + ); +EFI_DEVICE_PATH_PROTOCOL * +AppendDevicePath ( + CONST EFI_DEVICE_PATH_PROTOCOL *FirstDevicePath, OPTIONAL + CONST EFI_DEVICE_PATH_PROTOCOL *SecondDevicePath OPTIONAL + ); + +EFI_DEVICE_PATH_PROTOCOL * +DuplicateDevicePath ( + CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath + ); + +UINTN +GetDevicePathSize ( + CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath + ); + +CHAR16 * +ConvertDeviceNodeToText ( + CONST EFI_DEVICE_PATH_PROTOCOL *DeviceNode, + BOOLEAN DisplayOnly, + BOOLEAN AllowShortcuts + ); + +CHAR16 * +ConvertDevicePathToText ( + CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath, + BOOLEAN DisplayOnly, + BOOLEAN AllowShortcuts + ); + +EFI_DEVICE_PATH_PROTOCOL * +ConvertTextToDeviceNode ( + CONST CHAR16 *TextDeviceNode + ); + +EFI_DEVICE_PATH_PROTOCOL * +ConvertTextToDevicePath ( + CONST CHAR16 *TextDevicePath + ); + +#endif |