diff options
Diffstat (limited to 'MdeModulePkg/Library/UefiHiiLib/HiiLib.c')
| -rw-r--r-- | MdeModulePkg/Library/UefiHiiLib/HiiLib.c | 735 |
1 files changed, 214 insertions, 521 deletions
diff --git a/MdeModulePkg/Library/UefiHiiLib/HiiLib.c b/MdeModulePkg/Library/UefiHiiLib/HiiLib.c index 384bab4ed6..e337b23475 100644 --- a/MdeModulePkg/Library/UefiHiiLib/HiiLib.c +++ b/MdeModulePkg/Library/UefiHiiLib/HiiLib.c @@ -19,16 +19,26 @@ //
GLOBAL_REMOVE_IF_UNREFERENCED CONST CHAR16 mConfigHdrTemplate[] = L"GUID=00000000000000000000000000000000&NAME=0000&PATH=00";
+EFI_FORM_BROWSER2_PROTOCOL *mUefiFormBrowser2 = NULL;
+
//
-// Form Browser2 Protocol
+// Template used to mark the end of a list of packages
//
-EFI_FORM_BROWSER2_PROTOCOL *mUefiFormBrowser2 = NULL;
+GLOBAL_REMOVE_IF_UNREFERENCED CONST EFI_HII_PACKAGE_HEADER mEndOfPakageList = {
+ sizeof (EFI_HII_PACKAGE_HEADER),
+ EFI_HII_PACKAGE_END
+};
/**
- This funciton build the package list based on the package number,
- the GUID of the package list and the list of pointer which point to
- package header that defined by UEFI VFR compiler and StringGather
- tool.
+ Registers a list of packages in the HII Database and returns the HII Handle
+ associated with that registration. If an HII Handle has already been registered
+ with the same PackageListGuid, then NULL is returned. If there are not enough
+ resources to perform the registration, then NULL is returned. If an empty list
+ of packages is passed in, then NULL is returned. If the size of the list of
+ package is 0, then NULL is returned.
+
+ The variable arguments are pointers which point to package header that defined
+ by UEFI VFR compiler and StringGather tool.
#pragma pack (push, 1)
typedef struct {
@@ -36,267 +46,269 @@ EFI_FORM_BROWSER2_PROTOCOL *mUefiFormBrowser2 = NULL; EFI_HII_PACKAGE_HEADER PackageHeader;
} EDKII_AUTOGEN_PACKAGES_HEADER;
#pragma pack (pop)
-
- If there is not enough resource for the new package list,
- the function will ASSERT.
-
- @param NumberOfPackages The number of packages be
- @param GuidId The GUID for the package list to be generated.
- @param Marker The variable argument list. Each entry represent a specific package header that is
- generated by VFR compiler and StrGather tool. The first 4 bytes is a UINT32 value
- that indicate the overall length of the package.
-
- @return The pointer to the package list header.
+
+ @param[in] PackageListGuid The GUID of the package list.
+ @param[in] DeviceHandle If not NULL, the Device Handle on which
+ an instance of DEVICE_PATH_PROTOCOL is installed.
+ This Device Handle uniquely defines the device that
+ the added packages are associated with.
+ @param[in] ... The variable argument list that contains pointers
+ to packages terminated by a NULL.
+
+ @retval NULL A HII Handle has already been registered in the HII Database with
+ the same PackageListGuid.
+ @retval NULL The HII Handle could not be created.
+ @retval NULL An empty list of packages was passed in.
+ @retval NULL All packages are empty.
+ @retval Other The HII Handle associated with the newly registered package list.
**/
-EFI_HII_PACKAGE_LIST_HEADER *
-InternalHiiLibPreparePackages (
- IN UINTN NumberOfPackages,
- IN CONST EFI_GUID *GuidId,
- IN VA_LIST Marker
+EFI_HII_HANDLE
+EFIAPI
+HiiAddPackages (
+ IN CONST EFI_GUID *PackageListGuid,
+ IN EFI_HANDLE DeviceHandle OPTIONAL,
+ ...
)
{
- EFI_HII_PACKAGE_LIST_HEADER *PackageListHeader;
- UINT8 *PackageListData;
- UINT32 PackageListLength;
- UINT32 PackageLength;
- EFI_HII_PACKAGE_HEADER PackageHeader;
- UINT8 *PackageArray;
- UINTN Index;
- VA_LIST MarkerBackup;
-
- PackageListLength = sizeof (EFI_HII_PACKAGE_LIST_HEADER);
+ EFI_STATUS Status;
+ EFI_HII_HANDLE *HiiHandleBuffer;
+ VA_LIST Args;
+ UINT32 *Package;
+ EFI_HII_PACKAGE_LIST_HEADER *PackageListHeader;
+ EFI_HII_HANDLE HiiHandle;
+ UINT32 Length;
+ UINT8 *Data;
- MarkerBackup = Marker;
+ ASSERT (PackageListGuid != NULL);
//
- // Count the length of the final package list.
+ // Check to see if an HII Handle has already been registered with the same
+ // PackageListGuid
//
- for (Index = 0; Index < NumberOfPackages; Index++) {
- CopyMem (&PackageLength, VA_ARG (Marker, VOID *), sizeof (UINT32));
- //
- // Do not count the BinaryLength field.
- //
- PackageListLength += (PackageLength - sizeof (UINT32));
+ HiiHandleBuffer = HiiGetHiiHandles (PackageListGuid);
+ if (HiiHandleBuffer != NULL) {
+ FreePool (HiiHandleBuffer);
+ return NULL;
}
//
- // Include the length of EFI_HII_PACKAGE_END
+ // Calculate the length of all the packages in the variable argument list
//
- PackageListLength += sizeof (EFI_HII_PACKAGE_HEADER);
- PackageListHeader = AllocateZeroPool (PackageListLength);
- ASSERT (PackageListHeader != NULL);
-
- CopyGuid (&PackageListHeader->PackageListGuid, GuidId);
- PackageListHeader->PackageLength = PackageListLength;
-
- PackageListData = ((UINT8 *) PackageListHeader) + sizeof (EFI_HII_PACKAGE_LIST_HEADER);
+ for (Length = 0, VA_START (Args, DeviceHandle); (Package = VA_ARG (Args, UINT32 *)) != NULL; ) {
+ Length += (ReadUnaligned32 (Package) - sizeof (UINT32));
+ }
+ VA_END (Args);
- Marker = MarkerBackup;
//
- // Prepare the final package list.
+ // If there are no packages in the variable argument list or all the packages
+ // are empty, then return a NULL HII Handle
//
- for (Index = 0; Index < NumberOfPackages; Index++) {
- PackageArray = (UINT8 *) VA_ARG (Marker, VOID *);
- //
- // CopyMem is used for UINT32 to cover the unaligned address access.
- //
- CopyMem (&PackageLength, PackageArray, sizeof (UINT32));
- PackageLength -= sizeof (UINT32);
- PackageArray += sizeof (UINT32);
- CopyMem (PackageListData, PackageArray, PackageLength);
- PackageListData += PackageLength;
+ if (Length == 0) {
+ return NULL;
}
//
- // Append EFI_HII_PACKAGE_END
+ // Add the length of the Package List Header and the terminating Package Header
//
- PackageHeader.Type = EFI_HII_PACKAGE_END;
- PackageHeader.Length = sizeof (EFI_HII_PACKAGE_HEADER);
- CopyMem (PackageListData, &PackageHeader, PackageHeader.Length);
-
- return PackageListHeader;
-}
-
-/**
- Assemble EFI_HII_PACKAGE_LIST according to the passed in packages.
-
- If GuidId is NULL, then ASSERT.
- If not enough resource to complete the operation, then ASSERT.
-
- @param NumberOfPackages Number of packages.
- @param GuidId Package GUID.
- @param ... Variable argument list for packages to be assembled.
+ Length += sizeof (EFI_HII_PACKAGE_LIST_HEADER) + sizeof (EFI_HII_PACKAGE_HEADER);
- @return Pointer of EFI_HII_PACKAGE_LIST_HEADER.
-
-**/
-EFI_HII_PACKAGE_LIST_HEADER *
-EFIAPI
-HiiLibPreparePackageList (
- IN UINTN NumberOfPackages,
- IN CONST EFI_GUID *GuidId,
- ...
- )
-{
- EFI_HII_PACKAGE_LIST_HEADER *PackageListHeader;
- VA_LIST Marker;
-
- ASSERT (GuidId != NULL);
-
- VA_START (Marker, GuidId);
- PackageListHeader = InternalHiiLibPreparePackages (NumberOfPackages, GuidId, Marker);
- VA_END (Marker);
-
- return PackageListHeader;
-}
-
-
-/**
- This function allocates pool for an EFI_HII_PACKAGE_LIST structure
- with additional space that is big enough to host all packages described by the variable
- argument list of package pointers. The allocated structure is initialized using NumberOfPackages,
- GuidId, and the variable length argument list of package pointers.
-
- Then, EFI_HII_PACKAGE_LIST will be register to the default System HII Database. The
- Handle to the newly registered Package List is returned through HiiHandle.
-
- If HiiHandle is NULL, then ASSERT.
+ //
+ // Allocate the storage for the entire Package List
+ //
+ PackageListHeader = AllocateZeroPool (Length);
- @param NumberOfPackages The number of HII packages to register.
- @param GuidId Package List GUID ID.
- @param DriverHandle Optional. If not NULL, the DriverHandle on which an instance of DEVICE_PATH_PROTOCOL is installed.
- This DriverHandle uniquely defines the device that the added packages are associated with.
- @param HiiHandle On output, the HiiHandle is update with the handle which can be used to retrieve the Package
- List later. If the functions failed to add the package to the default HII database, this value will
- be set to NULL.
- @param ... The variable argument list describing all HII Package.
+ //
+ // If the Packahge List can not be allocated, then return a NULL HII Handle
+ //
+ if (PackageListHeader == NULL) {
+ return NULL;
+ }
- @return EFI_SUCCESS If the packages are successfully added to the default HII database.
- @return EFI_OUT_OF_RESOURCE Not enough resource to complete the operation.
+ //
+ // Fill in the GUID and Length of the Package List Header
+ //
+ CopyGuid (&PackageListHeader->PackageListGuid, PackageListGuid);
+ PackageListHeader->PackageLength = Length;
-**/
-EFI_STATUS
-EFIAPI
-HiiLibAddPackages (
- IN UINTN NumberOfPackages,
- IN CONST EFI_GUID *GuidId,
- IN EFI_HANDLE DriverHandle, OPTIONAL
- OUT EFI_HII_HANDLE *HiiHandle,
- ...
- )
-{
- VA_LIST Args;
- EFI_HII_PACKAGE_LIST_HEADER *PackageListHeader;
- EFI_STATUS Status;
+ //
+ // Initialize a pointer to the beginning if the Package List data
+ //
+ Data = (UINT8 *)(PackageListHeader + 1);
- ASSERT (HiiHandle != NULL);
+ //
+ // Copy the data from each package in the variable argument list
+ //
+ for (VA_START (Args, DeviceHandle); (Package = VA_ARG (Args, UINT32 *)) != NULL; ) {
+ Length = ReadUnaligned32 (Package) - sizeof (UINT32);
+ CopyMem (Data, Package + 1, Length);
+ Data += Length;
+ }
+ VA_END (Args);
- VA_START (Args, HiiHandle);
- PackageListHeader = InternalHiiLibPreparePackages (NumberOfPackages, GuidId, Args);
+ //
+ // Append a package of type EFI_HII_PACKAGE_END to mark the end of the package list
+ //
+ CopyMem (Data, &mEndOfPakageList, sizeof (mEndOfPakageList));
- Status = gHiiDatabase->NewPackageList (gHiiDatabase, PackageListHeader, DriverHandle, HiiHandle);
- if (HiiHandle != NULL) {
- if (EFI_ERROR (Status)) {
- *HiiHandle = NULL;
- }
+ //
+ // Register the package list with the HII Database
+ //
+ Status = gHiiDatabase->NewPackageList (
+ gHiiDatabase,
+ PackageListHeader,
+ DeviceHandle,
+ &HiiHandle
+ );
+ if (EFI_ERROR (Status)) {
+ HiiHandle = NULL;
}
+ //
+ // Free the allocated package list
+ //
FreePool (PackageListHeader);
- VA_END (Args);
-
- return Status;
+
+ //
+ // Return the new HII Handle
+ //
+ return HiiHandle;
}
/**
- Removes a package list from the default HII database.
+ Removes a package list from the HII database.
If HiiHandle is NULL, then ASSERT.
- If HiiHandle is not a valid EFI_HII_HANDLE in the default HII database, then ASSERT.
+ If HiiHandle is not a valid EFI_HII_HANDLE in the HII database, then ASSERT.
- @param HiiHandle The handle that was previously registered to the data base that is requested for removal.
- List later.
+ @param[in] HiiHandle The handle that was previously registered in the HII database
**/
VOID
EFIAPI
-HiiLibRemovePackages (
+HiiRemovePackages (
IN EFI_HII_HANDLE HiiHandle
)
{
EFI_STATUS Status;
- ASSERT (IsHiiHandleRegistered (HiiHandle));
+ ASSERT (HiiHandle != NULL);
Status = gHiiDatabase->RemovePackageList (gHiiDatabase, HiiHandle);
ASSERT_EFI_ERROR (Status);
}
/**
- Determines the handles that are currently active in the database.
- It's the caller's responsibility to free handle buffer.
-
- If HandleBufferLength is NULL, then ASSERT.
- If HiiHandleBuffer is NULL, then ASSERT.
-
- @param HandleBufferLength On input, a pointer to the length of the handle
- buffer. On output, the length of the handle buffer
- that is required for the handles found.
- @param HiiHandleBuffer Pointer to an array of Hii Handles returned.
-
- @retval EFI_SUCCESS Get an array of Hii Handles successfully.
+ Retrieves the array of all the HII Handles or the HII handle of a specific
+ package list in the HII Database.
+ This array is terminated with a NULL HII Handle.
+ This function allocates the returned array using AllocatePool().
+ The caller is responsible for freeing the array with FreePool().
+
+ @param[in] PackageListGuid An optional parameter that is used to request
+ an HII Handle that is associatd with a specific
+ Package List GUID. If this parameter is NULL
+ then all the HII Handles in the HII Database
+ are returned. If this parameter is not NULL
+ then at most 1 HII Handle is returned.
+
+ @retval NULL No HII handles were found in the HII database
+ @retval NULL The array of HII Handles could not be retrieved
+ @retval Other A pointer to the NULL terminated array of HII Handles
**/
-EFI_STATUS
+EFI_HII_HANDLE *
EFIAPI
-HiiLibGetHiiHandles (
- IN OUT UINTN *HandleBufferLength,
- OUT EFI_HII_HANDLE **HiiHandleBuffer
+HiiGetHiiHandles (
+ IN CONST EFI_GUID *PackageListGuid OPTIONAL
)
{
- EFI_STATUS Status;
+ EFI_STATUS Status;
+ UINTN HandleBufferLength;
+ EFI_HII_HANDLE TempHiiHandleBuffer;
+ EFI_HII_HANDLE *HiiHandleBuffer;
+ EFI_GUID Guid;
+ UINTN Index;
+
+ //
+ // Retrieve the size required for the buffer of all HII handles.
+ //
+ HandleBufferLength = 0;
+ Status = gHiiDatabase->ListPackageLists (
+ gHiiDatabase,
+ EFI_HII_PACKAGE_TYPE_ALL,
+ NULL,
+ &HandleBufferLength,
+ &TempHiiHandleBuffer
+ );
- ASSERT (HandleBufferLength != NULL);
- ASSERT (HiiHandleBuffer != NULL);
+ //
+ // If ListPackageLists() returns EFI_SUCCESS for a zero size,
+ // then there are no HII handles in the HII database. If ListPackageLists()
+ // returns an error other than EFI_BUFFER_TOO_SMALL, then there are no HII
+ // handles in the HII database.
+ //
+ if (Status != EFI_BUFFER_TOO_SMALL) {
+ //
+ // Return NULL if the size can not be retrieved, or if there are no HII
+ // handles in the HII Database
+ //
+ return NULL;
+ }
- *HandleBufferLength = 0;
- *HiiHandleBuffer = NULL;
+ //
+ // Allocate the array of HII handles to hold all the HII Handles and a NULL terminator
+ //
+ HiiHandleBuffer = AllocateZeroPool (HandleBufferLength + sizeof (EFI_HII_HANDLE));
+ if (HiiHandleBuffer == NULL) {
+ //
+ // Return NULL if allocation fails.
+ //
+ return NULL;
+ }
//
- // Try to find the actual buffer size for HiiHandle Buffer.
+ // Retrieve the array of HII Handles in the HII Database
//
Status = gHiiDatabase->ListPackageLists (
- gHiiDatabase,
- EFI_HII_PACKAGE_TYPE_ALL,
- NULL,
- HandleBufferLength,
- *HiiHandleBuffer
- );
-
- if (Status == EFI_BUFFER_TOO_SMALL) {
- *HiiHandleBuffer = AllocateZeroPool (*HandleBufferLength);
- ASSERT (*HiiHandleBuffer != NULL);
- Status = gHiiDatabase->ListPackageLists (
- gHiiDatabase,
- EFI_HII_PACKAGE_TYPE_ALL,
- NULL,
- HandleBufferLength,
- *HiiHandleBuffer
- );
-
- if (EFI_ERROR (Status)) {
- FreePool (*HiiHandleBuffer);
- *HiiHandleBuffer = NULL;
- }
+ gHiiDatabase,
+ EFI_HII_PACKAGE_TYPE_ALL,
+ NULL,
+ &HandleBufferLength,
+ HiiHandleBuffer
+ );
+ if (EFI_ERROR (Status)) {
+ //
+ // Free the buffer and return NULL if the HII handles can not be retrieved.
+ //
+ FreePool (HiiHandleBuffer);
+ return NULL;
}
- return Status;
+ if (PackageListGuid == NULL) {
+ //
+ // Return the NULL terminated array of HII handles in the HII Database
+ //
+ return HiiHandleBuffer;
+ } else {
+ for (Index = 0; HiiHandleBuffer[Index] != NULL; Index++) {
+ Status = InternalHiiExtractGuidFromHiiHandle (HiiHandleBuffer[Index], &Guid);
+ ASSERT_EFI_ERROR (Status);
+ if (CompareGuid (&Guid, PackageListGuid)) {
+ HiiHandleBuffer[0] = HiiHandleBuffer[Index];
+ HiiHandleBuffer[1] = NULL;
+ return HiiHandleBuffer;
+ }
+ }
+ FreePool (HiiHandleBuffer);
+ return NULL;
+ }
}
/**
Extract Hii package list GUID for given HII handle.
- If HiiHandle could not be found in the default HII database, then ASSERT.
+ If HiiHandle could not be found in the HII database, then ASSERT.
If Guid is NULL, then ASSERT.
@param Handle Hii handle
@@ -307,7 +319,7 @@ HiiLibGetHiiHandles ( **/
EFI_STATUS
EFIAPI
-HiiLibExtractGuidFromHiiHandle (
+InternalHiiExtractGuidFromHiiHandle (
IN EFI_HII_HANDLE Handle,
OUT EFI_GUID *Guid
)
@@ -317,7 +329,7 @@ HiiLibExtractGuidFromHiiHandle ( EFI_HII_PACKAGE_LIST_HEADER *HiiPackageList;
ASSERT (Guid != NULL);
- ASSERT (IsHiiHandleRegistered (Handle));
+ ASSERT (Handle != NULL);
//
// Get HII PackageList
@@ -350,326 +362,6 @@ HiiLibExtractGuidFromHiiHandle ( }
/**
- Find HII Handle in the default HII database associated with given Device Path.
-
- If DevicePath is NULL, then ASSERT.
-
- @param DevicePath Device Path associated with the HII package list
- handle.
-
- @retval Handle HII package list Handle associated with the Device
- Path.
- @retval NULL Hii Package list handle is not found.
-
-**/
-EFI_HII_HANDLE
-EFIAPI
-HiiLibDevicePathToHiiHandle (
- IN EFI_DEVICE_PATH_PROTOCOL *DevicePath
- )
-{
- EFI_STATUS Status;
- EFI_DEVICE_PATH_PROTOCOL *TmpDevicePath;
- UINTN BufferSize;
- UINTN HandleCount;
- UINTN Index;
- EFI_HANDLE *Handles;
- EFI_HANDLE Handle;
- UINTN Size;
- EFI_HANDLE DriverHandle;
- EFI_HII_HANDLE *HiiHandles;
- EFI_HII_HANDLE HiiHandle;
-
- ASSERT (DevicePath != NULL);
-
- //
- // Locate Device Path Protocol handle buffer
- //
- Status = gBS->LocateHandleBuffer (
- ByProtocol,
- &gEfiDevicePathProtocolGuid,
- NULL,
- &HandleCount,
- &Handles
- );
- if (EFI_ERROR (Status)) {
- return NULL;
- }
-
- //
- // Search Driver Handle by Device Path
- //
- DriverHandle = NULL;
- BufferSize = GetDevicePathSize (DevicePath);
- for(Index = 0; Index < HandleCount; Index++) {
- Handle = Handles[Index];
- gBS->HandleProtocol (Handle, &gEfiDevicePathProtocolGuid, (VOID **) &TmpDevicePath);
-
- //
- // Check whether DevicePath match
- //
- Size = GetDevicePathSize (TmpDevicePath);
- if ((Size == BufferSize) && CompareMem (DevicePath, TmpDevicePath, Size) == 0) {
- DriverHandle = Handle;
- break;
- }
- }
- FreePool (Handles);
-
- if (DriverHandle == NULL) {
- return NULL;
- }
-
- //
- // Retrieve all Hii Handles from HII database
- //
- BufferSize = 0x1000;
- HiiHandles = AllocatePool (BufferSize);
- ASSERT (HiiHandles != NULL);
- Status = gHiiDatabase->ListPackageLists (
- gHiiDatabase,
- EFI_HII_PACKAGE_TYPE_ALL,
- NULL,
- &BufferSize,
- HiiHandles
- );
- if (Status == EFI_BUFFER_TOO_SMALL) {
- FreePool (HiiHandles);
- HiiHandles = AllocatePool (BufferSize);
- ASSERT (HiiHandles != NULL);
-
- Status = gHiiDatabase->ListPackageLists (
- gHiiDatabase,
- EFI_HII_PACKAGE_TYPE_ALL,
- NULL,
- &BufferSize,
- HiiHandles
- );
- }
-
- if (EFI_ERROR (Status)) {
- FreePool (HiiHandles);
- return NULL;
- }
-
- //
- // Search Hii Handle by Driver Handle
- //
- HiiHandle = NULL;
- HandleCount = BufferSize / sizeof (EFI_HII_HANDLE);
- for (Index = 0; Index < HandleCount; Index++) {
- Status = gHiiDatabase->GetPackageListHandle (
- gHiiDatabase,
- HiiHandles[Index],
- &Handle
- );
- if (!EFI_ERROR (Status) && (Handle == DriverHandle)) {
- HiiHandle = HiiHandles[Index];
- break;
- }
- }
-
- FreePool (HiiHandles);
- return HiiHandle;
-}
-
-/**
- Exports the contents of one or all package lists in the HII database into a buffer.
-
- If Handle is not NULL and not a valid EFI_HII_HANDLE registered in the database,
- then ASSERT.
- If PackageListHeader is NULL, then ASSERT.
- If PackageListSize is NULL, then ASSERT.
-
- @param Handle The HII Handle.
- @param PackageListHeader A pointer to a buffer that will contain the results of
- the export function.
- @param PackageListSize On output, the length of the buffer that is required for the exported data.
-
- @retval EFI_SUCCESS Package exported.
-
- @retval EFI_OUT_OF_RESOURCES Not enought memory to complete the operations.
-
-**/
-EFI_STATUS
-EFIAPI
-HiiLibExportPackageLists (
- IN EFI_HII_HANDLE Handle,
- OUT EFI_HII_PACKAGE_LIST_HEADER **PackageListHeader,
- OUT UINTN *PackageListSize
- )
-{
- EFI_STATUS Status;
- UINTN Size;
- EFI_HII_PACKAGE_LIST_HEADER *PackageListHdr;
-
- ASSERT (PackageListSize != NULL);
- ASSERT (PackageListHeader != NULL);
-
- if (Handle != NULL) {
- ASSERT (IsHiiHandleRegistered (Handle));
- }
-
- Size = 0;
- PackageListHdr = NULL;
- Status = gHiiDatabase->ExportPackageLists (
- gHiiDatabase,
- Handle,
- &Size,
- PackageListHdr
- );
- ASSERT_EFI_ERROR (Status != EFI_BUFFER_TOO_SMALL);
-
- if (Status == EFI_BUFFER_TOO_SMALL) {
- PackageListHdr = AllocateZeroPool (Size);
-
- if (PackageListHeader == NULL) {
- return EFI_OUT_OF_RESOURCES;
- } else {
- Status = gHiiDatabase->ExportPackageLists (
- gHiiDatabase,
- Handle,
- &Size,
- PackageListHdr
- );
- }
- }
-
- if (!EFI_ERROR (Status)) {
- *PackageListHeader = PackageListHdr;
- *PackageListSize = Size;
- } else {
- FreePool (PackageListHdr);
- }
-
- return Status;
-}
-
-/**
-
- This function returns a list of the package handles of the
- specified type that are currently active in the HII database. The
- pseudo-type EFI_HII_PACKAGE_TYPE_ALL will cause all package
- handles to be listed.
-
- If HandleBufferLength is NULL, then ASSERT.
- If HandleBuffer is NULL, the ASSERT.
- If PackageType is EFI_HII_PACKAGE_TYPE_GUID and PackageGuid is
- NULL, then ASSERT.
- If PackageType is not EFI_HII_PACKAGE_TYPE_GUID and PackageGuid is not
- NULL, then ASSERT.
-
-
- @param PackageType Specifies the package type of the packages
- to list or EFI_HII_PACKAGE_TYPE_ALL for
- all packages to be listed.
-
- @param PackageGuid If PackageType is
- EFI_HII_PACKAGE_TYPE_GUID, then this is
- the pointer to the GUID which must match
- the Guid field of
- EFI_HII_PACKAGE_GUID_HEADER. Otherwise, it
- must be NULL.
-
- @param HandleBufferLength On output, the length of the handle buffer
- that is required for the handles found.
-
- @param HandleBuffer On output, an array of EFI_HII_HANDLE instances returned.
- The caller is responcible to free this pointer allocated.
-
- @retval EFI_SUCCESS The matching handles are outputed successfully.
- HandleBufferLength is updated with the actual length.
- @retval EFI_OUT_OF_RESOURCES Not enough resource to complete the operation.
- @retval EFI_NOT_FOUND No matching handle could not be found in database.
-**/
-EFI_STATUS
-EFIAPI
-HiiLibListPackageLists (
- IN UINT8 PackageType,
- IN CONST EFI_GUID *PackageGuid,
- IN OUT UINTN *HandleBufferLength,
- OUT EFI_HII_HANDLE **HandleBuffer
- )
-{
- EFI_STATUS Status;
-
- ASSERT (HandleBufferLength != NULL);
- ASSERT (HandleBuffer != NULL);
-
- *HandleBufferLength = 0;
- *HandleBuffer = NULL;
-
- if (PackageType == EFI_HII_PACKAGE_TYPE_GUID) {
- ASSERT (PackageGuid != NULL);
- } else {
- ASSERT (PackageGuid == NULL);
- }
-
- Status = gHiiDatabase->ListPackageLists (
- gHiiDatabase,
- PackageType,
- PackageGuid,
- HandleBufferLength,
- *HandleBuffer
- );
- if (EFI_ERROR (Status) && (Status != EFI_BUFFER_TOO_SMALL)) {
- //
- // No packages is registered to UEFI HII Database, just return.
- //
- //
- return Status;
- }
-
- *HandleBuffer = AllocateZeroPool (*HandleBufferLength);
-
- if (*HandleBuffer == NULL) {
- return EFI_OUT_OF_RESOURCES;
- }
-
- return gHiiDatabase->ListPackageLists (
- gHiiDatabase,
- PackageType,
- PackageGuid,
- HandleBufferLength,
- *HandleBuffer
- );
-
-}
-/**
- This function check if the Hii Handle is a valid handle registered
- in the HII database.
-
- @param HiiHandle The HII Handle.
-
- @retval TRUE If it is a valid HII handle.
- @retval FALSE If it is a invalid HII handle.
-**/
-BOOLEAN
-IsHiiHandleRegistered (
- EFI_HII_HANDLE HiiHandle
- )
-{
- EFI_STATUS Status;
- UINTN BufferSize;
- EFI_HII_PACKAGE_LIST_HEADER *HiiPackageList;
-
- ASSERT (HiiHandle != NULL);
-
- HiiPackageList = NULL;
- BufferSize = 0;
-
- Status = gHiiDatabase->ExportPackageLists (
- gHiiDatabase,
- HiiHandle,
- &BufferSize,
- HiiPackageList
- );
-
- return (BOOLEAN) (Status == EFI_BUFFER_TOO_SMALL);
-}
-
-
-/**
Converts all hex dtring characters in range ['A'..'F'] to ['a'..'f'] for
hex digits that appear between a '=' and a '&' in a config string.
@@ -2916,3 +2608,4 @@ HiiIfrLibExtractDefault( return EFI_SUCCESS;
}
+
|