diff options
Diffstat (limited to 'EdkNt32Pkg/Library/EdkGenericBdsLib/BdsMisc.c')
| -rw-r--r-- | EdkNt32Pkg/Library/EdkGenericBdsLib/BdsMisc.c | 1094 |
1 files changed, 0 insertions, 1094 deletions
diff --git a/EdkNt32Pkg/Library/EdkGenericBdsLib/BdsMisc.c b/EdkNt32Pkg/Library/EdkGenericBdsLib/BdsMisc.c deleted file mode 100644 index b8be94e74d..0000000000 --- a/EdkNt32Pkg/Library/EdkGenericBdsLib/BdsMisc.c +++ /dev/null @@ -1,1094 +0,0 @@ -/*++
-
-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:
-
- BdsMisc.c
-
-Abstract:
-
- Misc BDS library function
-
---*/
-
-#define MAX_STRING_LEN 200
-static BOOLEAN mFeaturerSwitch = TRUE;
-static BOOLEAN mResetRequired = FALSE;
-extern UINT16 gPlatformBootTimeOutDefault;
-
-UINT16
-BdsLibGetTimeout (
- VOID
- )
-/*++
-
-Routine Description:
-
- Return the default value for system Timeout variable.
-
-Arguments:
-
- None
-
-Returns:
-
- Timeout value.
-
---*/
-{
- UINT16 Timeout;
- UINTN Size;
- EFI_STATUS Status;
-
- //
- // Return Timeout variable or 0xffff if no valid
- // Timeout variable exists.
- //
- Size = sizeof (UINT16);
- Status = gRT->GetVariable (L"Timeout", &gEfiGlobalVariableGuid, NULL, &Size, &Timeout);
- if (!EFI_ERROR (Status)) {
- return Timeout;
- }
- //
- // To make the current EFI Automatic-Test activity possible, just add
- // following code to make AutoBoot enabled when this variable is not
- // present.
- // This code should be removed later.
- //
- Timeout = gPlatformBootTimeOutDefault;
-
- //
- // Notes: Platform should set default variable if non exists on all error cases!!!
- //
- Status = gRT->SetVariable (
- L"Timeout",
- &gEfiGlobalVariableGuid,
- EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE,
- sizeof (UINT16),
- &Timeout
- );
- return Timeout;
-}
-
-VOID
-BdsLibLoadDrivers (
- IN LIST_ENTRY *BdsDriverLists
- )
-/*++
-
-Routine Description:
-
- The function will go through the driver optoin link list, load and start
- every driver the driver optoin device path point to.
-
-Arguments:
-
- BdsDriverLists - The header of the current driver option link list
-
-Returns:
-
- None
-
---*/
-{
- EFI_STATUS Status;
- LIST_ENTRY *Link;
- BDS_COMMON_OPTION *Option;
- EFI_HANDLE ImageHandle;
- EFI_LOADED_IMAGE_PROTOCOL *ImageInfo;
- UINTN ExitDataSize;
- CHAR16 *ExitData;
- BOOLEAN ReconnectAll;
-
- ReconnectAll = FALSE;
-
- //
- // Process the driver option
- //
- for (Link = BdsDriverLists->ForwardLink; Link != BdsDriverLists; Link = Link->ForwardLink) {
- Option = CR (Link, BDS_COMMON_OPTION, Link, BDS_LOAD_OPTION_SIGNATURE);
- //
- // If a load option is not marked as LOAD_OPTION_ACTIVE,
- // the boot manager will not automatically load the option.
- //
- if (!IS_LOAD_OPTION_TYPE (Option->Attribute, LOAD_OPTION_ACTIVE)) {
- continue;
- }
- //
- // If a driver load option is marked as LOAD_OPTION_FORCE_RECONNECT,
- // then all of the EFI drivers in the system will be disconnected and
- // reconnected after the last driver load option is processed.
- //
- if (IS_LOAD_OPTION_TYPE (Option->Attribute, LOAD_OPTION_FORCE_RECONNECT)) {
- ReconnectAll = TRUE;
- }
- //
- // Make sure the driver path is connected.
- //
- BdsLibConnectDevicePath (Option->DevicePath);
-
- //
- // Load and start the image that Driver#### describes
- //
- Status = gBS->LoadImage (
- FALSE,
- mBdsImageHandle,
- Option->DevicePath,
- NULL,
- 0,
- &ImageHandle
- );
-
- if (!EFI_ERROR (Status)) {
- gBS->HandleProtocol (ImageHandle, &gEfiLoadedImageProtocolGuid, &ImageInfo);
-
- //
- // Verify whether this image is a driver, if not,
- // exit it and continue to parse next load option
- //
- if (ImageInfo->ImageCodeType != EfiBootServicesCode && ImageInfo->ImageCodeType != EfiRuntimeServicesCode) {
- gBS->Exit (ImageHandle, EFI_INVALID_PARAMETER, 0, NULL);
- continue;
- }
-
- if (Option->LoadOptionsSize != 0) {
- ImageInfo->LoadOptionsSize = Option->LoadOptionsSize;
- ImageInfo->LoadOptions = Option->LoadOptions;
- }
- //
- // Before calling the image, enable the Watchdog Timer for
- // the 5 Minute period
- //
- gBS->SetWatchdogTimer (5 * 60, 0x0000, 0x00, NULL);
-
- Status = gBS->StartImage (ImageHandle, &ExitDataSize, &ExitData);
- DEBUG ((EFI_D_INFO | EFI_D_LOAD, "Driver Return Status = %r\n", Status));
-
- //
- // Clear the Watchdog Timer after the image returns
- //
- gBS->SetWatchdogTimer (0x0000, 0x0000, 0x0000, NULL);
- }
- }
- //
- // Process the LOAD_OPTION_FORCE_RECONNECT driver option
- //
- if (ReconnectAll) {
- BdsLibDisconnectAllEfi ();
- BdsLibConnectAll ();
- }
-
-}
-
-EFI_STATUS
-BdsLibRegisterNewOption (
- IN LIST_ENTRY *BdsOptionList,
- IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,
- IN CHAR16 *String,
- IN CHAR16 *VariableName
- )
-/*++
-
-Routine Description:
-
- This function will register the new boot#### or driver#### option base on
- the VariableName. The new registered boot#### or driver#### will be linked
- to BdsOptionList and also update to the VariableName. After the boot#### or
- driver#### updated, the BootOrder or DriverOrder will also be updated.
-
-Arguments:
-
- BdsOptionList - The header of the boot#### or driver#### link list
-
- DevicePath - The device path which the boot####
- or driver#### option present
-
- String - The description of the boot#### or driver####
-
- VariableName - Indicate if the boot#### or driver#### option
-
-Returns:
-
- EFI_SUCCESS - The boot#### or driver#### have been success registered
-
- EFI_STATUS - Return the status of gRT->SetVariable ().
-
---*/
-{
- EFI_STATUS Status;
- UINTN Index;
- UINT16 MaxOptionNumber;
- UINT16 RegisterOptionNumber;
- UINT16 *TempOptionPtr;
- UINTN TempOptionSize;
- UINT16 *OptionOrderPtr;
- VOID *OptionPtr;
- UINTN OptionSize;
- UINT8 *TempPtr;
- EFI_DEVICE_PATH_PROTOCOL *OptionDevicePath;
- CHAR16 *Description;
- CHAR16 OptionName[10];
- BOOLEAN UpdateBootDevicePath;
-
- OptionPtr = NULL;
- OptionSize = 0;
- TempPtr = NULL;
- OptionDevicePath = NULL;
- Description = NULL;
- MaxOptionNumber = 0;
- OptionOrderPtr = NULL;
- UpdateBootDevicePath = FALSE;
- ZeroMem (OptionName, sizeof (OptionName));
-
- TempOptionSize = 0;
-
- TempOptionPtr = BdsLibGetVariableAndSize (
- VariableName,
- &gEfiGlobalVariableGuid,
- &TempOptionSize
- );
-
- //
- // Compare with current option variable
- //
- for (Index = 0; Index < TempOptionSize / sizeof (UINT16); Index++) {
- //
- // Got the max option#### number
- //
- if (MaxOptionNumber < TempOptionPtr[Index]) {
- MaxOptionNumber = TempOptionPtr[Index];
- }
-
- if (*VariableName == 'B') {
- UnicodeSPrint (OptionName, sizeof (OptionName), L"Boot%04x", TempOptionPtr[Index]);
- } else {
- UnicodeSPrint (OptionName, sizeof (OptionName), L"Driver%04x", TempOptionPtr[Index]);
- }
-
- OptionPtr = BdsLibGetVariableAndSize (
- OptionName,
- &gEfiGlobalVariableGuid,
- &OptionSize
- );
- TempPtr = OptionPtr;
- TempPtr += sizeof (UINT32) + sizeof (UINT16);
- Description = (CHAR16 *) TempPtr;
- TempPtr += StrSize ((CHAR16 *) TempPtr);
- OptionDevicePath = (EFI_DEVICE_PATH_PROTOCOL *) TempPtr;
-
- //
- // Notes: the description may will change base on the GetStringToken
- //
- if (CompareMem (Description, String, StrSize (Description)) == 0) {
- if (CompareMem (OptionDevicePath, DevicePath, GetDevicePathSize (OptionDevicePath)) == 0) {
- //
- // Got the option, so just return
- //
- FreePool (OptionPtr);
- FreePool (TempOptionPtr);
- return EFI_SUCCESS;
- } else {
- //
- // Boot device path changed, need update.
- //
- UpdateBootDevicePath = TRUE;
- break;
- }
- }
-
- FreePool (OptionPtr);
- }
-
- OptionSize = sizeof (UINT32) + sizeof (UINT16) + StrSize (String) + GetDevicePathSize (DevicePath);
- OptionPtr = AllocateZeroPool (OptionSize);
- TempPtr = OptionPtr;
- *(UINT32 *) TempPtr = LOAD_OPTION_ACTIVE;
- TempPtr += sizeof (UINT32);
- *(UINT16 *) TempPtr = (UINT16) GetDevicePathSize (DevicePath);
- TempPtr += sizeof (UINT16);
- CopyMem (TempPtr, String, StrSize (String));
- TempPtr += StrSize (String);
- CopyMem (TempPtr, DevicePath, GetDevicePathSize (DevicePath));
-
- if (UpdateBootDevicePath) {
- //
- // The number in option#### to be updated
- //
- RegisterOptionNumber = TempOptionPtr[Index];
- } else {
- //
- // The new option#### number
- //
- RegisterOptionNumber = MaxOptionNumber + 1;
- }
-
- if (*VariableName == 'B') {
- UnicodeSPrint (OptionName, sizeof (OptionName), L"Boot%04x", RegisterOptionNumber);
- } else {
- UnicodeSPrint (OptionName, sizeof (OptionName), L"Driver%04x", RegisterOptionNumber);
- }
-
- Status = gRT->SetVariable (
- OptionName,
- &gEfiGlobalVariableGuid,
- EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE,
- OptionSize,
- OptionPtr
- );
- if (EFI_ERROR (Status) || UpdateBootDevicePath) {
- FreePool (OptionPtr);
- FreePool (TempOptionPtr);
- return Status;
- }
-
- FreePool (OptionPtr);
-
- //
- // Update the option order variable
- //
- OptionOrderPtr = AllocateZeroPool ((Index + 1) * sizeof (UINT16));
- CopyMem (OptionOrderPtr, TempOptionPtr, Index * sizeof (UINT16));
- OptionOrderPtr[Index] = RegisterOptionNumber;
- Status = gRT->SetVariable (
- VariableName,
- &gEfiGlobalVariableGuid,
- EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE,
- (Index + 1) * sizeof (UINT16),
- OptionOrderPtr
- );
- if (EFI_ERROR (Status)) {
- FreePool (TempOptionPtr);
- FreePool (OptionOrderPtr);
- return Status;
- }
-
- if (TempOptionPtr != NULL) {
- FreePool (TempOptionPtr);
- }
- FreePool (OptionOrderPtr);
-
- return EFI_SUCCESS;
-}
-
-BDS_COMMON_OPTION *
-BdsLibVariableToOption (
- IN OUT LIST_ENTRY *BdsCommonOptionList,
- IN CHAR16 *VariableName
- )
-/*++
-
-Routine Description:
-
- Build the boot#### or driver#### option from the VariableName, the
- build boot#### or driver#### will also be linked to BdsCommonOptionList
-
-Arguments:
-
- BdsCommonOptionList - The header of the boot#### or driver#### option link list
-
- VariableName - EFI Variable name indicate if it is boot#### or driver####
-
-Returns:
-
- BDS_COMMON_OPTION - Get the option just been created
-
- NULL - Failed to get the new option
-
---*/
-{
- UINT32 Attribute;
- UINT16 FilePathSize;
- UINT8 *Variable;
- UINT8 *TempPtr;
- UINTN VariableSize;
- EFI_DEVICE_PATH_PROTOCOL *DevicePath;
- BDS_COMMON_OPTION *Option;
- VOID *LoadOptions;
- UINT32 LoadOptionsSize;
- CHAR16 *Description;
-
- //
- // Read the variable. We will never free this data.
- //
- Variable = BdsLibGetVariableAndSize (
- VariableName,
- &gEfiGlobalVariableGuid,
- &VariableSize
- );
- if (Variable == NULL) {
- return NULL;
- }
- //
- // Notes: careful defined the variable of Boot#### or
- // Driver####, consider use some macro to abstract the code
- //
- //
- // Get the option attribute
- //
- TempPtr = Variable;
- Attribute = *(UINT32 *) Variable;
- TempPtr += sizeof (UINT32);
-
- //
- // Get the option's device path size
- //
- FilePathSize = *(UINT16 *) TempPtr;
- TempPtr += sizeof (UINT16);
-
- //
- // Get the option's description string
- //
- Description = (CHAR16 *) TempPtr;
-
- //
- // Get the option's description string size
- //
- TempPtr += StrSize ((CHAR16 *) TempPtr);
-
- //
- // Get the option's device path
- //
- DevicePath = (EFI_DEVICE_PATH_PROTOCOL *) TempPtr;
- TempPtr += FilePathSize;
-
- LoadOptions = TempPtr;
- LoadOptionsSize = (UINT32) (VariableSize - (UINTN) (TempPtr - Variable));
-
- //
- // The Console variables may have multiple device paths, so make
- // an Entry for each one.
- //
- Option = AllocateZeroPool (sizeof (BDS_COMMON_OPTION));
- if (Option == NULL) {
- return NULL;
- }
-
- Option->Signature = BDS_LOAD_OPTION_SIGNATURE;
- Option->DevicePath = AllocateZeroPool (GetDevicePathSize (DevicePath));
- CopyMem (Option->DevicePath, DevicePath, GetDevicePathSize (DevicePath));
- Option->Attribute = Attribute;
- Option->Description = AllocateZeroPool (StrSize (Description));
- CopyMem (Option->Description, Description, StrSize (Description));
- Option->LoadOptions = AllocateZeroPool (LoadOptionsSize);
- CopyMem (Option->LoadOptions, LoadOptions, LoadOptionsSize);
- Option->LoadOptionsSize = LoadOptionsSize;
-
- //
- // Insert active entry to BdsDeviceList
- //
- if ((Option->Attribute & LOAD_OPTION_ACTIVE) == LOAD_OPTION_ACTIVE) {
- InsertTailList (BdsCommonOptionList, &Option->Link);
- FreePool (Variable);
- return Option;
- }
-
- FreePool (Variable);
- FreePool (Option);
- return NULL;
-
-}
-
-EFI_STATUS
-BdsLibBuildOptionFromVar (
- IN LIST_ENTRY *BdsCommonOptionList,
- IN CHAR16 *VariableName
- )
-/*++
-
-Routine Description:
-
- Process BootOrder, or DriverOrder variables, by calling
- BdsLibVariableToOption () for each UINT16 in the variables.
-
-Arguments:
-
- BdsCommonOptionList - The header of the option list base on variable
- VariableName
-
- VariableName - EFI Variable name indicate the BootOrder or DriverOrder
-
-Returns:
-
- EFI_SUCCESS - Success create the boot option or driver option list
-
- EFI_OUT_OF_RESOURCES - Failed to get the boot option or driver option list
-
---*/
-{
- UINT16 *OptionOrder;
- UINTN OptionOrderSize;
- UINTN Index;
- BDS_COMMON_OPTION *Option;
- CHAR16 OptionName[20];
-
- //
- // Zero Buffer in order to get all BOOT#### variables
- //
- ZeroMem (OptionName, sizeof (OptionName));
-
- //
- // Read the BootOrder, or DriverOrder variable.
- //
- OptionOrder = BdsLibGetVariableAndSize (
- VariableName,
- &gEfiGlobalVariableGuid,
- &OptionOrderSize
- );
- if (OptionOrder == NULL) {
- return EFI_OUT_OF_RESOURCES;
- }
-
- for (Index = 0; Index < OptionOrderSize / sizeof (UINT16); Index++) {
- if (*VariableName == 'B') {
- UnicodeSPrint (OptionName, sizeof (OptionName), L"Boot%04x", OptionOrder[Index]);
- } else {
- UnicodeSPrint (OptionName, sizeof (OptionName), L"Driver%04x", OptionOrder[Index]);
- }
- Option = BdsLibVariableToOption (BdsCommonOptionList, OptionName);
- Option->BootCurrent = OptionOrder[Index];
-
- }
-
- FreePool (OptionOrder);
-
- return EFI_SUCCESS;
-}
-
-VOID *
-BdsLibGetVariableAndSize (
- IN CHAR16 *Name,
- IN EFI_GUID *VendorGuid,
- OUT UINTN *VariableSize
- )
-/*++
-
-Routine Description:
-
- Read the EFI variable (VendorGuid/Name) and return a dynamically allocated
- buffer, and the size of the buffer. If failure return NULL.
-
-Arguments:
-
- Name - String part of EFI variable name
-
- VendorGuid - GUID part of EFI variable name
-
- VariableSize - Returns the size of the EFI variable that was read
-
-Returns:
-
- Dynamically allocated memory that contains a copy of the EFI variable.
- Caller is responsible freeing the buffer.
-
- NULL - Variable was not read
-
---*/
-{
- EFI_STATUS Status;
- UINTN BufferSize;
- VOID *Buffer;
-
- Buffer = NULL;
-
- //
- // Pass in a zero size buffer to find the required buffer size.
- //
- BufferSize = 0;
- Status = gRT->GetVariable (Name, VendorGuid, NULL, &BufferSize, Buffer);
- if (Status == EFI_BUFFER_TOO_SMALL) {
- //
- // Allocate the buffer to return
- //
- Buffer = AllocateZeroPool (BufferSize);
- if (Buffer == NULL) {
- return NULL;
- }
- //
- // Read variable into the allocated buffer.
- //
- Status = gRT->GetVariable (Name, VendorGuid, NULL, &BufferSize, Buffer);
- if (EFI_ERROR (Status)) {
- BufferSize = 0;
- }
- }
-
- *VariableSize = BufferSize;
- return Buffer;
-}
-
-VOID
-BdsLibSafeFreePool (
- IN VOID *Buffer
- )
-/*++
-
-Routine Description:
-
- Free pool safely.
-
-Arguments:
-
- Buffer - The allocated pool entry to free
-
-Returns:
-
- Pointer of the buffer allocated.
-
---*/
-{
- if (Buffer != NULL) {
- FreePool (Buffer);
- Buffer = NULL;
- }
-}
-
-EFI_DEVICE_PATH_PROTOCOL *
-BdsLibDelPartMatchInstance (
- IN EFI_DEVICE_PATH_PROTOCOL *Multi,
- IN EFI_DEVICE_PATH_PROTOCOL *Single
- )
-/*++
-
-Routine Description:
-
- Delete the instance in Multi which matches partly with Single instance
-
-Arguments:
-
- Multi - A pointer to a multi-instance device path data structure.
-
- Single - A pointer to a single-instance device path data structure.
-
-Returns:
-
- This function will remove the device path instances in Multi which partly
- match with the Single, and return the result device path. If there is no
- remaining device path as a result, this function will return NULL.
-
---*/
-{
- EFI_DEVICE_PATH_PROTOCOL *Instance;
- EFI_DEVICE_PATH_PROTOCOL *NewDevicePath;
- EFI_DEVICE_PATH_PROTOCOL *TempNewDevicePath;
- UINTN InstanceSize;
- UINTN SingleDpSize;
- UINTN Size;
-
- NewDevicePath = NULL;
- TempNewDevicePath = NULL;
-
- if (Multi == NULL || Single == NULL) {
- return Multi;
- }
-
- Instance = GetNextDevicePathInstance (&Multi, &InstanceSize);
- SingleDpSize = GetDevicePathSize (Single) - END_DEVICE_PATH_LENGTH;
- InstanceSize -= END_DEVICE_PATH_LENGTH;
-
- while (Instance != NULL) {
-
- Size = (SingleDpSize < InstanceSize) ? SingleDpSize : InstanceSize;
-
- if ((CompareMem (Instance, Single, Size) != 0)) {
- //
- // Append the device path instance which does not match with Single
- //
- TempNewDevicePath = NewDevicePath;
- NewDevicePath = AppendDevicePathInstance (NewDevicePath, Instance);
- BdsLibSafeFreePool(TempNewDevicePath);
- }
- BdsLibSafeFreePool(Instance);
- Instance = GetNextDevicePathInstance (&Multi, &InstanceSize);
- InstanceSize -= END_DEVICE_PATH_LENGTH;
- }
-
- return NewDevicePath;
-}
-
-BOOLEAN
-BdsLibMatchDevicePaths (
- IN EFI_DEVICE_PATH_PROTOCOL *Multi,
- IN EFI_DEVICE_PATH_PROTOCOL *Single
- )
-/*++
-
-Routine Description:
-
- Function compares a device path data structure to that of all the nodes of a
- second device path instance.
-
-Arguments:
-
- Multi - A pointer to a multi-instance device path data structure.
-
- Single - A pointer to a single-instance device path data structure.
-
-Returns:
-
- TRUE - If the Single is contained within Multi
-
- FALSE - The Single is not match within Multi
-
-
---*/
-{
- EFI_DEVICE_PATH_PROTOCOL *DevicePath;
- EFI_DEVICE_PATH_PROTOCOL *DevicePathInst;
- UINTN Size;
-
- if (!Multi || !Single) {
- return FALSE;
- }
-
- DevicePath = Multi;
- DevicePathInst = GetNextDevicePathInstance (&DevicePath, &Size);
-
- //
- // Search for the match of 'Single' in 'Multi'
- //
- while (DevicePathInst != NULL) {
- //
- // If the single device path is found in multiple device paths,
- // return success
- //
- if (CompareMem (Single, DevicePathInst, Size) == 0) {
- FreePool (DevicePathInst);
- return TRUE;
- }
-
- FreePool (DevicePathInst);
- DevicePathInst = GetNextDevicePathInstance (&DevicePath, &Size);
- }
-
- return FALSE;
-}
-
-EFI_STATUS
-BdsLibOutputStrings (
- IN EFI_SIMPLE_TEXT_OUT_PROTOCOL *ConOut,
- ...
- )
-/*++
-
-Routine Description:
-
- This function prints a series of strings.
-
-Arguments:
-
- ConOut - Pointer to EFI_SIMPLE_TEXT_OUT_PROTOCOL
-
- ... - A variable argument list containing series of strings,
- the last string must be NULL.
-
-Returns:
-
- EFI_SUCCESS - Success print out the string using ConOut.
-
- EFI_STATUS - Return the status of the ConOut->OutputString ().
-
---*/
-{
- VA_LIST args;
- EFI_STATUS Status;
- CHAR16 *String;
-
- Status = EFI_SUCCESS;
- VA_START (args, ConOut);
-
- while (!EFI_ERROR (Status)) {
- //
- // If String is NULL, then it's the end of the list
- //
- String = VA_ARG (args, CHAR16 *);
- if (!String) {
- break;
- }
-
- Status = ConOut->OutputString (ConOut, String);
-
- if (EFI_ERROR (Status)) {
- break;
- }
- }
-
- return Status;
-}
-
-//
-// Following are BDS Lib functions which contain all the code about setup browser reset reminder feature.
-// Setup Browser reset reminder feature is that an reset reminder will be given before user leaves the setup browser if
-// user change any option setting which needs a reset to be effective, and the reset will be applied according to the user selection.
-//
-
-VOID
-EnableResetReminderFeature (
- VOID
- )
-/*++
-
-Routine Description:
-
- Enable the setup browser reset reminder feature.
- This routine is used in platform tip. If the platform policy need the feature, use the routine to enable it.
-
-Arguments:
-
- VOID
-
-Returns:
-
- VOID
-
---*/
-{
- mFeaturerSwitch = TRUE;
-}
-
-VOID
-DisableResetReminderFeature (
- VOID
- )
-/*++
-
-Routine Description:
-
- Disable the setup browser reset reminder feature.
- This routine is used in platform tip. If the platform policy do not want the feature, use the routine to disable it.
-
-Arguments:
-
- VOID
-
-Returns:
-
- VOID
-
---*/
-{
- mFeaturerSwitch = FALSE;
-}
-
-VOID
-EnableResetRequired (
- VOID
- )
-/*++
-
-Routine Description:
-
- Record the info that a reset is required.
- A module boolean variable is used to record whether a reset is required.
-
-Arguments:
-
- VOID
-
-Returns:
-
- VOID
-
---*/
-{
- mResetRequired = TRUE;
-}
-
-VOID
-DisableResetRequired (
- VOID
- )
-/*++
-
-Routine Description:
-
- Record the info that no reset is required.
- A module boolean variable is used to record whether a reset is required.
-
-Arguments:
-
- VOID
-
-Returns:
-
- VOID
-
---*/
-{
- mResetRequired = FALSE;
-}
-
-BOOLEAN
-IsResetReminderFeatureEnable (
- VOID
- )
-/*++
-
-Routine Description:
-
- Check whether platform policy enable the reset reminder feature. The default is enabled.
-
-Arguments:
-
- VOID
-
-Returns:
-
- VOID
-
---*/
-{
- return mFeaturerSwitch;
-}
-
-BOOLEAN
-IsResetRequired (
- VOID
- )
-/*++
-
-Routine Description:
-
- Check if user changed any option setting which needs a system reset to be effective.
-
-Arguments:
-
- VOID
-
-Returns:
-
- VOID
-
---*/
-{
- return mResetRequired;
-}
-
-VOID
-SetupResetReminder (
- VOID
- )
-/*++
-
-Routine Description:
-
- Check whether a reset is needed, and finish the reset reminder feature.
- If a reset is needed, Popup a menu to notice user, and finish the feature
- according to the user selection.
-
-Arguments:
-
- VOID
-
-Returns:
-
- VOID
-
---*/
-{
- EFI_STATUS Status;
- EFI_FORM_BROWSER_PROTOCOL *Browser;
- EFI_INPUT_KEY Key;
- CHAR16 *StringBuffer1;
- CHAR16 *StringBuffer2;
-
-
- //
- //check any reset required change is applied? if yes, reset system
- //
- if (IsResetReminderFeatureEnable ()) {
- if (IsResetRequired ()) {
-
- Status = gBS->LocateProtocol (
- &gEfiFormBrowserProtocolGuid,
- NULL,
- &Browser
- );
-
- ASSERT (Status != EFI_SUCCESS);
-
- StringBuffer1 = AllocateZeroPool (MAX_STRING_LEN * sizeof (CHAR16));
- ASSERT (StringBuffer1 != NULL);
- StringBuffer2 = AllocateZeroPool (MAX_STRING_LEN * sizeof (CHAR16));
- ASSERT (StringBuffer2 != NULL);
- StrCpy (StringBuffer1, L"Configuration changed. Reset to apply it Now ? ");
- StrCpy (StringBuffer2, L"Enter (YES) / Esc (NO)");
- //
- // Popup a menu to notice user
- //
- do {
- Browser->CreatePopUp (2, TRUE, 0, NULL, &Key, StringBuffer1, StringBuffer2);
- } while ((Key.ScanCode != SCAN_ESC) && (Key.UnicodeChar != CHAR_CARRIAGE_RETURN));
-
- FreePool (StringBuffer1);
- FreePool (StringBuffer2);
- //
- // If the user hits the YES Response key, reset
- //
- if ((Key.UnicodeChar == CHAR_CARRIAGE_RETURN)) {
- gRT->ResetSystem (EfiResetCold, EFI_SUCCESS, 0, NULL);
- }
- gST->ConOut->ClearScreen (gST->ConOut);
- }
- }
-}
-
-EFI_STATUS
-BdsLibGetHiiHandles (
- IN EFI_HII_PROTOCOL *Hii,
- IN OUT UINT16 *HandleBufferLength,
- OUT EFI_HII_HANDLE **HiiHandleBuffer
- )
-/*++
-
-Routine Description:
-
- Determines the handles that are currently active in the database.
- It's the caller's responsibility to free handle buffer.
-
-Arguments:
-
- This - A pointer to the EFI_HII_PROTOCOL instance.
- 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.
- HiiHandleBuffer - Pointer to an array of EFI_HII_PROTOCOL instances returned.
-
-Returns:
-
- EFI_SUCCESS - Get an array of EFI_HII_PROTOCOL instances successfully.
- EFI_INVALID_PARAMETER - Hii is NULL.
- EFI_NOT_FOUND - Database not found.
-
---*/
-{
- UINT16 TempBufferLength;
- EFI_STATUS Status;
-
- TempBufferLength = 0;
-
- //
- // Try to find the actual buffer size for HiiHandle Buffer.
- //
- Status = Hii->FindHandles (Hii, &TempBufferLength, *HiiHandleBuffer);
-
- if (Status == EFI_BUFFER_TOO_SMALL) {
- *HiiHandleBuffer = AllocateZeroPool (TempBufferLength);
- Status = Hii->FindHandles (Hii, &TempBufferLength, *HiiHandleBuffer);
- //
- // we should not fail here.
- //
- ASSERT_EFI_ERROR (Status);
- }
-
- *HandleBufferLength = TempBufferLength;
-
- return Status;
-
-}
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