7795c8f942
Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Qiu Shumin <shumin.qiu@intel.com> Reviewed-by: Yao Jiewen <jiewen.yao@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17312 6f19259b-4bc3-4df7-8a09-765794883524
458 lines
17 KiB
C
458 lines
17 KiB
C
/** @file
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Definition for Device Path library.
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Copyright (c) 2013 - 2015, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#ifndef _UEFI_DEVICE_PATH_LIB_H_
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#define _UEFI_DEVICE_PATH_LIB_H_
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#include <Uefi.h>
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#include <Protocol/DevicePathUtilities.h>
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#include <Protocol/DebugPort.h>
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#include <Protocol/DevicePathToText.h>
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#include <Protocol/DevicePathFromText.h>
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#include <Guid/PcAnsi.h>
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#include <Library/DebugLib.h>
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#include <Library/PrintLib.h>
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#include <Library/BaseLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/MemoryAllocationLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/DevicePathLib.h>
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#include <Library/PcdLib.h>
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#include <IndustryStandard/Bluetooth.h>
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#define IS_COMMA(a) ((a) == L',')
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#define IS_HYPHEN(a) ((a) == L'-')
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#define IS_DOT(a) ((a) == L'.')
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#define IS_LEFT_PARENTH(a) ((a) == L'(')
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#define IS_RIGHT_PARENTH(a) ((a) == L')')
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#define IS_SLASH(a) ((a) == L'/')
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#define IS_NULL(a) ((a) == L'\0')
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//
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// Private Data structure
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//
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typedef struct {
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CHAR16 *Str;
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UINTN Count;
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UINTN Capacity;
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} POOL_PRINT;
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typedef
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EFI_DEVICE_PATH_PROTOCOL *
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(*DEVICE_PATH_FROM_TEXT) (
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IN CHAR16 *Str
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);
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typedef
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VOID
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(*DEVICE_PATH_TO_TEXT) (
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IN OUT POOL_PRINT *Str,
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IN VOID *DevicePath,
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IN BOOLEAN DisplayOnly,
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IN BOOLEAN AllowShortcuts
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);
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typedef struct {
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UINT8 Type;
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UINT8 SubType;
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DEVICE_PATH_TO_TEXT Function;
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} DEVICE_PATH_TO_TEXT_TABLE;
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typedef struct {
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UINT8 Type;
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CHAR16 *Text;
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} DEVICE_PATH_TO_TEXT_GENERIC_TABLE;
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typedef struct {
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CHAR16 *DevicePathNodeText;
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DEVICE_PATH_FROM_TEXT Function;
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} DEVICE_PATH_FROM_TEXT_TABLE;
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typedef struct {
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BOOLEAN ClassExist;
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UINT8 Class;
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BOOLEAN SubClassExist;
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UINT8 SubClass;
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} USB_CLASS_TEXT;
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#define USB_CLASS_AUDIO 1
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#define USB_CLASS_CDCCONTROL 2
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#define USB_CLASS_HID 3
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#define USB_CLASS_IMAGE 6
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#define USB_CLASS_PRINTER 7
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#define USB_CLASS_MASS_STORAGE 8
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#define USB_CLASS_HUB 9
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#define USB_CLASS_CDCDATA 10
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#define USB_CLASS_SMART_CARD 11
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#define USB_CLASS_VIDEO 14
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#define USB_CLASS_DIAGNOSTIC 220
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#define USB_CLASS_WIRELESS 224
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#define USB_CLASS_RESERVE 254
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#define USB_SUBCLASS_FW_UPDATE 1
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#define USB_SUBCLASS_IRDA_BRIDGE 2
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#define USB_SUBCLASS_TEST 3
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#define RFC_1700_UDP_PROTOCOL 17
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#define RFC_1700_TCP_PROTOCOL 6
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#pragma pack(1)
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typedef struct {
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EFI_DEVICE_PATH_PROTOCOL Header;
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EFI_GUID Guid;
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UINT8 VendorDefinedData[1];
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} VENDOR_DEFINED_HARDWARE_DEVICE_PATH;
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typedef struct {
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EFI_DEVICE_PATH_PROTOCOL Header;
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EFI_GUID Guid;
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UINT8 VendorDefinedData[1];
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} VENDOR_DEFINED_MESSAGING_DEVICE_PATH;
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typedef struct {
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EFI_DEVICE_PATH_PROTOCOL Header;
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EFI_GUID Guid;
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UINT8 VendorDefinedData[1];
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} VENDOR_DEFINED_MEDIA_DEVICE_PATH;
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typedef struct {
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EFI_DEVICE_PATH_PROTOCOL Header;
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UINT32 Hid;
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UINT32 Uid;
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UINT32 Cid;
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CHAR8 HidUidCidStr[3];
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} ACPI_EXTENDED_HID_DEVICE_PATH_WITH_STR;
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typedef struct {
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EFI_DEVICE_PATH_PROTOCOL Header;
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UINT16 NetworkProtocol;
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UINT16 LoginOption;
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UINT64 Lun;
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UINT16 TargetPortalGroupTag;
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CHAR8 TargetName[1];
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} ISCSI_DEVICE_PATH_WITH_NAME;
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typedef struct {
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EFI_DEVICE_PATH_PROTOCOL Header;
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EFI_GUID Guid;
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UINT8 VendorDefinedData[1];
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} VENDOR_DEVICE_PATH_WITH_DATA;
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#pragma pack()
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/**
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Returns the size of a device path in bytes.
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This function returns the size, in bytes, of the device path data structure
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specified by DevicePath including the end of device path node.
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If DevicePath is NULL or invalid, then 0 is returned.
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@param DevicePath A pointer to a device path data structure.
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@retval 0 If DevicePath is NULL or invalid.
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@retval Others The size of a device path in bytes.
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**/
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UINTN
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EFIAPI
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UefiDevicePathLibGetDevicePathSize (
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IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath
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);
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/**
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Creates a new copy of an existing device path.
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This function allocates space for a new copy of the device path specified by DevicePath.
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If DevicePath is NULL, then NULL is returned. If the memory is successfully
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allocated, then the contents of DevicePath are copied to the newly allocated
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buffer, and a pointer to that buffer is returned. Otherwise, NULL is returned.
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The memory for the new device path is allocated from EFI boot services memory.
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It is the responsibility of the caller to free the memory allocated.
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@param DevicePath A pointer to a device path data structure.
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@retval NULL DevicePath is NULL or invalid.
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@retval Others A pointer to the duplicated device path.
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**/
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EFI_DEVICE_PATH_PROTOCOL *
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EFIAPI
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UefiDevicePathLibDuplicateDevicePath (
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IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath
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);
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/**
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Creates a new device path by appending a second device path to a first device path.
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This function creates a new device path by appending a copy of SecondDevicePath
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to a copy of FirstDevicePath in a newly allocated buffer. Only the end-of-device-path
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device node from SecondDevicePath is retained. The newly created device path is
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returned. If FirstDevicePath is NULL, then it is ignored, and a duplicate of
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SecondDevicePath is returned. If SecondDevicePath is NULL, then it is ignored,
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and a duplicate of FirstDevicePath is returned. If both FirstDevicePath and
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SecondDevicePath are NULL, then a copy of an end-of-device-path is returned.
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If there is not enough memory for the newly allocated buffer, then NULL is returned.
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The memory for the new device path is allocated from EFI boot services memory.
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It is the responsibility of the caller to free the memory allocated.
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@param FirstDevicePath A pointer to a device path data structure.
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@param SecondDevicePath A pointer to a device path data structure.
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@retval NULL If there is not enough memory for the newly allocated buffer.
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@retval NULL If FirstDevicePath or SecondDevicePath is invalid.
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@retval Others A pointer to the new device path if success.
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Or a copy an end-of-device-path if both FirstDevicePath and SecondDevicePath are NULL.
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**/
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EFI_DEVICE_PATH_PROTOCOL *
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EFIAPI
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UefiDevicePathLibAppendDevicePath (
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IN CONST EFI_DEVICE_PATH_PROTOCOL *FirstDevicePath, OPTIONAL
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IN CONST EFI_DEVICE_PATH_PROTOCOL *SecondDevicePath OPTIONAL
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);
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/**
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Creates a new path by appending the device node to the device path.
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This function creates a new device path by appending a copy of the device node
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specified by DevicePathNode to a copy of the device path specified by DevicePath
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in an allocated buffer. The end-of-device-path device node is moved after the
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end of the appended device node.
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If DevicePathNode is NULL then a copy of DevicePath is returned.
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If DevicePath is NULL then a copy of DevicePathNode, followed by an end-of-device
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path device node is returned.
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If both DevicePathNode and DevicePath are NULL then a copy of an end-of-device-path
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device node is returned.
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If there is not enough memory to allocate space for the new device path, then
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NULL is returned.
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The memory is allocated from EFI boot services memory. It is the responsibility
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of the caller to free the memory allocated.
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@param DevicePath A pointer to a device path data structure.
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@param DevicePathNode A pointer to a single device path node.
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@retval NULL If there is not enough memory for the new device path.
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@retval Others A pointer to the new device path if success.
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A copy of DevicePathNode followed by an end-of-device-path node
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if both FirstDevicePath and SecondDevicePath are NULL.
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A copy of an end-of-device-path node if both FirstDevicePath
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and SecondDevicePath are NULL.
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**/
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EFI_DEVICE_PATH_PROTOCOL *
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EFIAPI
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UefiDevicePathLibAppendDevicePathNode (
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IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath, OPTIONAL
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IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePathNode OPTIONAL
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);
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/**
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Creates a new device path by appending the specified device path instance to the specified device
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path.
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This function creates a new device path by appending a copy of the device path
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instance specified by DevicePathInstance to a copy of the device path specified
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by DevicePath in a allocated buffer.
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The end-of-device-path device node is moved after the end of the appended device
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path instance and a new end-of-device-path-instance node is inserted between.
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If DevicePath is NULL, then a copy if DevicePathInstance is returned.
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If DevicePathInstance is NULL, then NULL is returned.
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If DevicePath or DevicePathInstance is invalid, then NULL is returned.
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If there is not enough memory to allocate space for the new device path, then
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NULL is returned.
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The memory is allocated from EFI boot services memory. It is the responsibility
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of the caller to free the memory allocated.
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@param DevicePath A pointer to a device path data structure.
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@param DevicePathInstance A pointer to a device path instance.
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@return A pointer to the new device path.
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**/
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EFI_DEVICE_PATH_PROTOCOL *
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EFIAPI
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UefiDevicePathLibAppendDevicePathInstance (
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IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath, OPTIONAL
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IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePathInstance OPTIONAL
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);
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/**
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Creates a copy of the current device path instance and returns a pointer to the next device path
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instance.
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This function creates a copy of the current device path instance. It also updates
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DevicePath to point to the next device path instance in the device path (or NULL
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if no more) and updates Size to hold the size of the device path instance copy.
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If DevicePath is NULL, then NULL is returned.
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If DevicePath points to a invalid device path, then NULL is returned.
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If there is not enough memory to allocate space for the new device path, then
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NULL is returned.
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The memory is allocated from EFI boot services memory. It is the responsibility
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of the caller to free the memory allocated.
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If Size is NULL, then ASSERT().
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@param DevicePath On input, this holds the pointer to the current
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device path instance. On output, this holds
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the pointer to the next device path instance
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or NULL if there are no more device path
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instances in the device path pointer to a
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device path data structure.
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@param Size On output, this holds the size of the device
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path instance, in bytes or zero, if DevicePath
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is NULL.
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@return A pointer to the current device path instance.
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**/
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EFI_DEVICE_PATH_PROTOCOL *
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EFIAPI
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UefiDevicePathLibGetNextDevicePathInstance (
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IN OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath,
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OUT UINTN *Size
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);
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/**
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Creates a device node.
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This function creates a new device node in a newly allocated buffer of size
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NodeLength and initializes the device path node header with NodeType and NodeSubType.
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The new device path node is returned.
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If NodeLength is smaller than a device path header, then NULL is returned.
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If there is not enough memory to allocate space for the new device path, then
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NULL is returned.
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The memory is allocated from EFI boot services memory. It is the responsibility
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of the caller to free the memory allocated.
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@param NodeType The device node type for the new device node.
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@param NodeSubType The device node sub-type for the new device node.
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@param NodeLength The length of the new device node.
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@return The new device path.
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**/
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EFI_DEVICE_PATH_PROTOCOL *
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EFIAPI
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UefiDevicePathLibCreateDeviceNode (
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IN UINT8 NodeType,
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IN UINT8 NodeSubType,
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IN UINT16 NodeLength
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);
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/**
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Determines if a device path is single or multi-instance.
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This function returns TRUE if the device path specified by DevicePath is
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multi-instance.
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Otherwise, FALSE is returned.
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If DevicePath is NULL or invalid, then FALSE is returned.
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@param DevicePath A pointer to a device path data structure.
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@retval TRUE DevicePath is multi-instance.
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@retval FALSE DevicePath is not multi-instance, or DevicePath
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is NULL or invalid.
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**/
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BOOLEAN
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EFIAPI
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UefiDevicePathLibIsDevicePathMultiInstance (
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IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath
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);
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/**
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Converts a device path to its text representation.
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@param DevicePath A Pointer to the device to be converted.
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@param DisplayOnly If DisplayOnly is TRUE, then the shorter text representation
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of the display node is used, where applicable. If DisplayOnly
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is FALSE, then the longer text representation of the display node
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is used.
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@param AllowShortcuts If AllowShortcuts is TRUE, then the shortcut forms of text
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representation for a device node can be used, where applicable.
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@return A pointer to the allocated text representation of the device path or
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NULL if DeviceNode is NULL or there was insufficient memory.
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**/
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CHAR16 *
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EFIAPI
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UefiDevicePathLibConvertDevicePathToText (
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IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath,
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IN BOOLEAN DisplayOnly,
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IN BOOLEAN AllowShortcuts
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);
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/**
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Converts a device node to its string representation.
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@param DeviceNode A Pointer to the device node to be converted.
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@param DisplayOnly If DisplayOnly is TRUE, then the shorter text representation
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of the display node is used, where applicable. If DisplayOnly
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is FALSE, then the longer text representation of the display node
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is used.
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@param AllowShortcuts If AllowShortcuts is TRUE, then the shortcut forms of text
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representation for a device node can be used, where applicable.
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@return A pointer to the allocated text representation of the device node or NULL if DeviceNode
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is NULL or there was insufficient memory.
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**/
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CHAR16 *
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EFIAPI
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UefiDevicePathLibConvertDeviceNodeToText (
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IN CONST EFI_DEVICE_PATH_PROTOCOL *DeviceNode,
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IN BOOLEAN DisplayOnly,
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IN BOOLEAN AllowShortcuts
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);
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/**
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Convert text to the binary representation of a device node.
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@param TextDeviceNode TextDeviceNode points to the text representation of a device
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node. Conversion starts with the first character and continues
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until the first non-device node character.
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@return A pointer to the EFI device node or NULL if TextDeviceNode is NULL or there was
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insufficient memory or text unsupported.
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**/
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EFI_DEVICE_PATH_PROTOCOL *
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EFIAPI
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UefiDevicePathLibConvertTextToDeviceNode (
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IN CONST CHAR16 *TextDeviceNode
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);
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/**
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Convert text to the binary representation of a device path.
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@param TextDevicePath TextDevicePath points to the text representation of a device
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path. Conversion starts with the first character and continues
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until the first non-device node character.
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@return A pointer to the allocated device path or NULL if TextDeviceNode is NULL or
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there was insufficient memory.
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**/
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EFI_DEVICE_PATH_PROTOCOL *
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EFIAPI
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UefiDevicePathLibConvertTextToDevicePath (
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IN CONST CHAR16 *TextDevicePath
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);
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#endif
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