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		1436aea4d5
		
	
	
	
	
		
			
			REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3737 Apply uncrustify changes to .c/.h files in the MdeModulePkg package Cc: Andrew Fish <afish@apple.com> Cc: Leif Lindholm <leif@nuviainc.com> Cc: Michael D Kinney <michael.d.kinney@intel.com> Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com> Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
		
			
				
	
	
		
			2292 lines
		
	
	
		
			72 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			2292 lines
		
	
	
		
			72 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /** @file
 | |
| This is an example of how a driver might export data to the HII protocol to be
 | |
| later utilized by the Setup Protocol
 | |
| 
 | |
| Copyright (c) 2004 - 2018, Intel Corporation. All rights reserved.<BR>
 | |
| SPDX-License-Identifier: BSD-2-Clause-Patent
 | |
| 
 | |
| **/
 | |
| 
 | |
| #include "DriverSample.h"
 | |
| 
 | |
| #define DISPLAY_ONLY_MY_ITEM  0x0002
 | |
| 
 | |
| CHAR16  VariableName[]  = L"MyIfrNVData";
 | |
| CHAR16  MyEfiVar[]      = L"MyEfiVar";
 | |
| CHAR16  MyEfiBitVar[]   = L"MyEfiBitVar";
 | |
| CHAR16  MyEfiUnionVar[] = L"MyEfiUnionVar";
 | |
| 
 | |
| EFI_HANDLE                  DriverHandle[2] = { NULL, NULL };
 | |
| DRIVER_SAMPLE_PRIVATE_DATA  *mPrivateData   = NULL;
 | |
| EFI_EVENT                   mEvent;
 | |
| 
 | |
| HII_VENDOR_DEVICE_PATH  mHiiVendorDevicePath0 = {
 | |
|   {
 | |
|     {
 | |
|       HARDWARE_DEVICE_PATH,
 | |
|       HW_VENDOR_DP,
 | |
|       {
 | |
|         (UINT8)(sizeof (VENDOR_DEVICE_PATH)),
 | |
|         (UINT8)((sizeof (VENDOR_DEVICE_PATH)) >> 8)
 | |
|       }
 | |
|     },
 | |
|     DRIVER_SAMPLE_FORMSET_GUID
 | |
|   },
 | |
|   {
 | |
|     END_DEVICE_PATH_TYPE,
 | |
|     END_ENTIRE_DEVICE_PATH_SUBTYPE,
 | |
|     {
 | |
|       (UINT8)(END_DEVICE_PATH_LENGTH),
 | |
|       (UINT8)((END_DEVICE_PATH_LENGTH) >> 8)
 | |
|     }
 | |
|   }
 | |
| };
 | |
| 
 | |
| HII_VENDOR_DEVICE_PATH  mHiiVendorDevicePath1 = {
 | |
|   {
 | |
|     {
 | |
|       HARDWARE_DEVICE_PATH,
 | |
|       HW_VENDOR_DP,
 | |
|       {
 | |
|         (UINT8)(sizeof (VENDOR_DEVICE_PATH)),
 | |
|         (UINT8)((sizeof (VENDOR_DEVICE_PATH)) >> 8)
 | |
|       }
 | |
|     },
 | |
|     DRIVER_SAMPLE_INVENTORY_GUID
 | |
|   },
 | |
|   {
 | |
|     END_DEVICE_PATH_TYPE,
 | |
|     END_ENTIRE_DEVICE_PATH_SUBTYPE,
 | |
|     {
 | |
|       (UINT8)(END_DEVICE_PATH_LENGTH),
 | |
|       (UINT8)((END_DEVICE_PATH_LENGTH) >> 8)
 | |
|     }
 | |
|   }
 | |
| };
 | |
| 
 | |
| /**
 | |
|   Set value of a data element in an Array by its Index.
 | |
| 
 | |
|   @param  Array                  The data array.
 | |
|   @param  Type                   Type of the data in this array.
 | |
|   @param  Index                  Zero based index for data in this array.
 | |
|   @param  Value                  The value to be set.
 | |
| 
 | |
| **/
 | |
| VOID
 | |
| SetArrayData (
 | |
|   IN VOID    *Array,
 | |
|   IN UINT8   Type,
 | |
|   IN UINTN   Index,
 | |
|   IN UINT64  Value
 | |
|   )
 | |
| {
 | |
|   ASSERT (Array != NULL);
 | |
| 
 | |
|   switch (Type) {
 | |
|     case EFI_IFR_TYPE_NUM_SIZE_8:
 | |
|       *(((UINT8 *)Array) + Index) = (UINT8)Value;
 | |
|       break;
 | |
| 
 | |
|     case EFI_IFR_TYPE_NUM_SIZE_16:
 | |
|       *(((UINT16 *)Array) + Index) = (UINT16)Value;
 | |
|       break;
 | |
| 
 | |
|     case EFI_IFR_TYPE_NUM_SIZE_32:
 | |
|       *(((UINT32 *)Array) + Index) = (UINT32)Value;
 | |
|       break;
 | |
| 
 | |
|     case EFI_IFR_TYPE_NUM_SIZE_64:
 | |
|       *(((UINT64 *)Array) + Index) = (UINT64)Value;
 | |
|       break;
 | |
| 
 | |
|     default:
 | |
|       break;
 | |
|   }
 | |
| }
 | |
| 
 | |
| /**
 | |
|   Notification function for keystrokes.
 | |
| 
 | |
|   @param[in] KeyData    The key that was pressed.
 | |
| 
 | |
|   @retval EFI_SUCCESS   The operation was successful.
 | |
| **/
 | |
| EFI_STATUS
 | |
| EFIAPI
 | |
| NotificationFunction (
 | |
|   IN EFI_KEY_DATA  *KeyData
 | |
|   )
 | |
| {
 | |
|   gBS->SignalEvent (mEvent);
 | |
| 
 | |
|   return EFI_SUCCESS;
 | |
| }
 | |
| 
 | |
| /**
 | |
|   Function to start monitoring for CTRL-C using SimpleTextInputEx.
 | |
| 
 | |
|   @retval EFI_SUCCESS           The feature is enabled.
 | |
|   @retval EFI_OUT_OF_RESOURCES  There is not enough mnemory available.
 | |
| **/
 | |
| EFI_STATUS
 | |
| EFIAPI
 | |
| InternalStartMonitor (
 | |
|   VOID
 | |
|   )
 | |
| {
 | |
|   EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL  *SimpleEx;
 | |
|   EFI_KEY_DATA                       KeyData;
 | |
|   EFI_STATUS                         Status;
 | |
|   EFI_HANDLE                         *Handles;
 | |
|   UINTN                              HandleCount;
 | |
|   UINTN                              HandleIndex;
 | |
|   VOID                               *NotifyHandle;
 | |
| 
 | |
|   Status = gBS->LocateHandleBuffer (
 | |
|                   ByProtocol,
 | |
|                   &gEfiSimpleTextInputExProtocolGuid,
 | |
|                   NULL,
 | |
|                   &HandleCount,
 | |
|                   &Handles
 | |
|                   );
 | |
|   for (HandleIndex = 0; HandleIndex < HandleCount; HandleIndex++) {
 | |
|     Status = gBS->HandleProtocol (Handles[HandleIndex], &gEfiSimpleTextInputExProtocolGuid, (VOID **)&SimpleEx);
 | |
|     ASSERT_EFI_ERROR (Status);
 | |
| 
 | |
|     KeyData.KeyState.KeyToggleState = 0;
 | |
|     KeyData.Key.ScanCode            = 0;
 | |
|     KeyData.KeyState.KeyShiftState  = EFI_SHIFT_STATE_VALID|EFI_LEFT_CONTROL_PRESSED;
 | |
|     KeyData.Key.UnicodeChar         = L'c';
 | |
| 
 | |
|     Status = SimpleEx->RegisterKeyNotify (
 | |
|                          SimpleEx,
 | |
|                          &KeyData,
 | |
|                          NotificationFunction,
 | |
|                          &NotifyHandle
 | |
|                          );
 | |
|     if (EFI_ERROR (Status)) {
 | |
|       break;
 | |
|     }
 | |
| 
 | |
|     KeyData.KeyState.KeyShiftState = EFI_SHIFT_STATE_VALID|EFI_RIGHT_CONTROL_PRESSED;
 | |
|     Status                         = SimpleEx->RegisterKeyNotify (
 | |
|                                                  SimpleEx,
 | |
|                                                  &KeyData,
 | |
|                                                  NotificationFunction,
 | |
|                                                  &NotifyHandle
 | |
|                                                  );
 | |
|     if (EFI_ERROR (Status)) {
 | |
|       break;
 | |
|     }
 | |
|   }
 | |
| 
 | |
|   return EFI_SUCCESS;
 | |
| }
 | |
| 
 | |
| /**
 | |
|   Function to stop monitoring for CTRL-C using SimpleTextInputEx.
 | |
| 
 | |
|   @retval EFI_SUCCESS           The feature is enabled.
 | |
|   @retval EFI_OUT_OF_RESOURCES  There is not enough mnemory available.
 | |
| **/
 | |
| EFI_STATUS
 | |
| EFIAPI
 | |
| InternalStopMonitor (
 | |
|   VOID
 | |
|   )
 | |
| {
 | |
|   EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL  *SimpleEx;
 | |
|   EFI_STATUS                         Status;
 | |
|   EFI_HANDLE                         *Handles;
 | |
|   EFI_KEY_DATA                       KeyData;
 | |
|   UINTN                              HandleCount;
 | |
|   UINTN                              HandleIndex;
 | |
|   VOID                               *NotifyHandle;
 | |
| 
 | |
|   Status = gBS->LocateHandleBuffer (
 | |
|                   ByProtocol,
 | |
|                   &gEfiSimpleTextInputExProtocolGuid,
 | |
|                   NULL,
 | |
|                   &HandleCount,
 | |
|                   &Handles
 | |
|                   );
 | |
|   for (HandleIndex = 0; HandleIndex < HandleCount; HandleIndex++) {
 | |
|     Status = gBS->HandleProtocol (Handles[HandleIndex], &gEfiSimpleTextInputExProtocolGuid, (VOID **)&SimpleEx);
 | |
|     ASSERT_EFI_ERROR (Status);
 | |
| 
 | |
|     KeyData.KeyState.KeyToggleState = 0;
 | |
|     KeyData.Key.ScanCode            = 0;
 | |
|     KeyData.KeyState.KeyShiftState  = EFI_SHIFT_STATE_VALID|EFI_LEFT_CONTROL_PRESSED;
 | |
|     KeyData.Key.UnicodeChar         = L'c';
 | |
| 
 | |
|     Status = SimpleEx->RegisterKeyNotify (
 | |
|                          SimpleEx,
 | |
|                          &KeyData,
 | |
|                          NotificationFunction,
 | |
|                          &NotifyHandle
 | |
|                          );
 | |
|     if (!EFI_ERROR (Status)) {
 | |
|       Status = SimpleEx->UnregisterKeyNotify (SimpleEx, NotifyHandle);
 | |
|     }
 | |
| 
 | |
|     KeyData.KeyState.KeyShiftState = EFI_SHIFT_STATE_VALID|EFI_RIGHT_CONTROL_PRESSED;
 | |
|     Status                         = SimpleEx->RegisterKeyNotify (
 | |
|                                                  SimpleEx,
 | |
|                                                  &KeyData,
 | |
|                                                  NotificationFunction,
 | |
|                                                  &NotifyHandle
 | |
|                                                  );
 | |
|     if (!EFI_ERROR (Status)) {
 | |
|       Status = SimpleEx->UnregisterKeyNotify (SimpleEx, NotifyHandle);
 | |
|     }
 | |
|   }
 | |
| 
 | |
|   return EFI_SUCCESS;
 | |
| }
 | |
| 
 | |
| /**
 | |
|  Update names of Name/Value storage to current language.
 | |
| 
 | |
|  @param PrivateData   Points to the driver private data.
 | |
| 
 | |
|  @retval EFI_SUCCESS   All names are successfully updated.
 | |
|  @retval EFI_NOT_FOUND Failed to get Name from HII database.
 | |
| 
 | |
| **/
 | |
| EFI_STATUS
 | |
| LoadNameValueNames (
 | |
|   IN DRIVER_SAMPLE_PRIVATE_DATA  *PrivateData
 | |
|   )
 | |
| {
 | |
|   UINTN  Index;
 | |
| 
 | |
|   //
 | |
|   // Get Name/Value name string of current language
 | |
|   //
 | |
|   for (Index = 0; Index < NAME_VALUE_NAME_NUMBER; Index++) {
 | |
|     PrivateData->NameValueName[Index] = HiiGetString (
 | |
|                                           PrivateData->HiiHandle[0],
 | |
|                                           PrivateData->NameStringId[Index],
 | |
|                                           NULL
 | |
|                                           );
 | |
|     if (PrivateData->NameValueName[Index] == NULL) {
 | |
|       return EFI_NOT_FOUND;
 | |
|     }
 | |
|   }
 | |
| 
 | |
|   return EFI_SUCCESS;
 | |
| }
 | |
| 
 | |
| /**
 | |
|   Get the value of <Number> in <BlockConfig> format, i.e. the value of OFFSET
 | |
|   or WIDTH or VALUE.
 | |
|   <BlockConfig> ::= 'OFFSET='<Number>&'WIDTH='<Number>&'VALUE'=<Number>
 | |
| 
 | |
|   This is a internal function.
 | |
| 
 | |
|   @param  StringPtr              String in <BlockConfig> format and points to the
 | |
|                                  first character of <Number>.
 | |
|   @param  Number                 The output value. Caller takes the responsibility
 | |
|                                  to free memory.
 | |
|   @param  Len                    Length of the <Number>, in characters.
 | |
| 
 | |
|   @retval EFI_OUT_OF_RESOURCES   Insufficient resources to store neccessary
 | |
|                                  structures.
 | |
|   @retval EFI_SUCCESS            Value of <Number> is outputted in Number
 | |
|                                  successfully.
 | |
| 
 | |
| **/
 | |
| EFI_STATUS
 | |
| GetValueOfNumber (
 | |
|   IN EFI_STRING  StringPtr,
 | |
|   OUT UINT8      **Number,
 | |
|   OUT UINTN      *Len
 | |
|   )
 | |
| {
 | |
|   EFI_STRING  TmpPtr;
 | |
|   UINTN       Length;
 | |
|   EFI_STRING  Str;
 | |
|   UINT8       *Buf;
 | |
|   EFI_STATUS  Status;
 | |
|   UINT8       DigitUint8;
 | |
|   UINTN       Index;
 | |
|   CHAR16      TemStr[2];
 | |
| 
 | |
|   if ((StringPtr == NULL) || (*StringPtr == L'\0') || (Number == NULL) || (Len == NULL)) {
 | |
|     return EFI_INVALID_PARAMETER;
 | |
|   }
 | |
| 
 | |
|   Buf = NULL;
 | |
| 
 | |
|   TmpPtr = StringPtr;
 | |
|   while (*StringPtr != L'\0' && *StringPtr != L'&') {
 | |
|     StringPtr++;
 | |
|   }
 | |
| 
 | |
|   *Len   = StringPtr - TmpPtr;
 | |
|   Length = *Len + 1;
 | |
| 
 | |
|   Str = (EFI_STRING)AllocateZeroPool (Length * sizeof (CHAR16));
 | |
|   if (Str == NULL) {
 | |
|     Status = EFI_OUT_OF_RESOURCES;
 | |
|     goto Exit;
 | |
|   }
 | |
| 
 | |
|   CopyMem (Str, TmpPtr, *Len * sizeof (CHAR16));
 | |
|   *(Str + *Len) = L'\0';
 | |
| 
 | |
|   Length = (Length + 1) / 2;
 | |
|   Buf    = (UINT8 *)AllocateZeroPool (Length);
 | |
|   if (Buf == NULL) {
 | |
|     Status = EFI_OUT_OF_RESOURCES;
 | |
|     goto Exit;
 | |
|   }
 | |
| 
 | |
|   Length = *Len;
 | |
|   ZeroMem (TemStr, sizeof (TemStr));
 | |
|   for (Index = 0; Index < Length; Index++) {
 | |
|     TemStr[0]  = Str[Length - Index - 1];
 | |
|     DigitUint8 = (UINT8)StrHexToUint64 (TemStr);
 | |
|     if ((Index & 1) == 0) {
 | |
|       Buf[Index/2] = DigitUint8;
 | |
|     } else {
 | |
|       Buf[Index/2] = (UINT8)((DigitUint8 << 4) + Buf[Index/2]);
 | |
|     }
 | |
|   }
 | |
| 
 | |
|   *Number = Buf;
 | |
|   Status  = EFI_SUCCESS;
 | |
| 
 | |
| Exit:
 | |
|   if (Str != NULL) {
 | |
|     FreePool (Str);
 | |
|   }
 | |
| 
 | |
|   return Status;
 | |
| }
 | |
| 
 | |
| /**
 | |
|   Create altcfg string.
 | |
| 
 | |
|   @param  Result               The request result string.
 | |
|   @param  ConfigHdr            The request head info. <ConfigHdr> format.
 | |
|   @param  Offset               The offset of the parameter int he structure.
 | |
|   @param  Width                The width of the parameter.
 | |
| 
 | |
| 
 | |
|   @retval  The string with altcfg info append at the end.
 | |
| **/
 | |
| EFI_STRING
 | |
| CreateAltCfgString (
 | |
|   IN     EFI_STRING  Result,
 | |
|   IN     EFI_STRING  ConfigHdr,
 | |
|   IN     UINTN       Offset,
 | |
|   IN     UINTN       Width
 | |
|   )
 | |
| {
 | |
|   EFI_STRING  StringPtr;
 | |
|   EFI_STRING  TmpStr;
 | |
|   UINTN       NewLen;
 | |
| 
 | |
|   NewLen = StrLen (Result);
 | |
|   //
 | |
|   // String Len = ConfigResp + AltConfig + AltConfig + 1("\0")
 | |
|   //
 | |
|   NewLen    = (NewLen + ((1 + StrLen (ConfigHdr) + 8 + 4) + (8 + 4 + 7 + 4 + 7 + 4)) * 2 + 1) * sizeof (CHAR16);
 | |
|   StringPtr = AllocateZeroPool (NewLen);
 | |
|   if (StringPtr == NULL) {
 | |
|     return NULL;
 | |
|   }
 | |
| 
 | |
|   TmpStr = StringPtr;
 | |
|   if (Result != NULL) {
 | |
|     StrCpyS (StringPtr, NewLen / sizeof (CHAR16), Result);
 | |
|     StringPtr += StrLen (Result);
 | |
|     FreePool (Result);
 | |
|   }
 | |
| 
 | |
|   UnicodeSPrint (
 | |
|     StringPtr,
 | |
|     (1 + StrLen (ConfigHdr) + 8 + 4 + 1) * sizeof (CHAR16),
 | |
|     L"&%s&ALTCFG=%04x",
 | |
|     ConfigHdr,
 | |
|     EFI_HII_DEFAULT_CLASS_STANDARD
 | |
|     );
 | |
|   StringPtr += StrLen (StringPtr);
 | |
| 
 | |
|   UnicodeSPrint (
 | |
|     StringPtr,
 | |
|     (8 + 4 + 7 + 4 + 7 + 4 + 1) * sizeof (CHAR16),
 | |
|     L"&OFFSET=%04x&WIDTH=%04x&VALUE=%04x",
 | |
|     Offset,
 | |
|     Width,
 | |
|     DEFAULT_CLASS_STANDARD_VALUE
 | |
|     );
 | |
|   StringPtr += StrLen (StringPtr);
 | |
| 
 | |
|   UnicodeSPrint (
 | |
|     StringPtr,
 | |
|     (1 + StrLen (ConfigHdr) + 8 + 4 + 1) * sizeof (CHAR16),
 | |
|     L"&%s&ALTCFG=%04x",
 | |
|     ConfigHdr,
 | |
|     EFI_HII_DEFAULT_CLASS_MANUFACTURING
 | |
|     );
 | |
|   StringPtr += StrLen (StringPtr);
 | |
| 
 | |
|   UnicodeSPrint (
 | |
|     StringPtr,
 | |
|     (8 + 4 + 7 + 4 + 7 + 4 + 1) * sizeof (CHAR16),
 | |
|     L"&OFFSET=%04x&WIDTH=%04x&VALUE=%04x",
 | |
|     Offset,
 | |
|     Width,
 | |
|     DEFAULT_CLASS_MANUFACTURING_VALUE
 | |
|     );
 | |
|   StringPtr += StrLen (StringPtr);
 | |
| 
 | |
|   return TmpStr;
 | |
| }
 | |
| 
 | |
| /**
 | |
|   Check whether need to add the altcfg string. if need to add, add the altcfg
 | |
|   string.
 | |
| 
 | |
|   @param  RequestResult              The request result string.
 | |
|   @param  ConfigRequestHdr           The request head info. <ConfigHdr> format.
 | |
| 
 | |
| **/
 | |
| VOID
 | |
| AppendAltCfgString (
 | |
|   IN OUT EFI_STRING  *RequestResult,
 | |
|   IN     EFI_STRING  ConfigRequestHdr
 | |
|   )
 | |
| {
 | |
|   EFI_STRING  StringPtr;
 | |
|   UINTN       Length;
 | |
|   UINT8       *TmpBuffer;
 | |
|   UINTN       Offset;
 | |
|   UINTN       Width;
 | |
|   UINTN       BlockSize;
 | |
|   UINTN       ValueOffset;
 | |
|   UINTN       ValueWidth;
 | |
|   EFI_STATUS  Status;
 | |
| 
 | |
|   TmpBuffer   = NULL;
 | |
|   StringPtr   = *RequestResult;
 | |
|   StringPtr   = StrStr (StringPtr, L"OFFSET");
 | |
|   BlockSize   = sizeof (DRIVER_SAMPLE_CONFIGURATION);
 | |
|   ValueOffset = OFFSET_OF (DRIVER_SAMPLE_CONFIGURATION, GetDefaultValueFromAccess);
 | |
|   ValueWidth  = sizeof (((DRIVER_SAMPLE_CONFIGURATION *)0)->GetDefaultValueFromAccess);
 | |
| 
 | |
|   if (StringPtr == NULL) {
 | |
|     return;
 | |
|   }
 | |
| 
 | |
|   while (*StringPtr != 0 && StrnCmp (StringPtr, L"OFFSET=", StrLen (L"OFFSET=")) == 0) {
 | |
|     StringPtr += StrLen (L"OFFSET=");
 | |
|     //
 | |
|     // Get Offset
 | |
|     //
 | |
|     Status = GetValueOfNumber (StringPtr, &TmpBuffer, &Length);
 | |
|     if (EFI_ERROR (Status)) {
 | |
|       return;
 | |
|     }
 | |
| 
 | |
|     Offset = 0;
 | |
|     CopyMem (
 | |
|       &Offset,
 | |
|       TmpBuffer,
 | |
|       (((Length + 1) / 2) < sizeof (UINTN)) ? ((Length + 1) / 2) : sizeof (UINTN)
 | |
|       );
 | |
|     FreePool (TmpBuffer);
 | |
| 
 | |
|     StringPtr += Length;
 | |
|     if (StrnCmp (StringPtr, L"&WIDTH=", StrLen (L"&WIDTH=")) != 0) {
 | |
|       return;
 | |
|     }
 | |
| 
 | |
|     StringPtr += StrLen (L"&WIDTH=");
 | |
| 
 | |
|     //
 | |
|     // Get Width
 | |
|     //
 | |
|     Status = GetValueOfNumber (StringPtr, &TmpBuffer, &Length);
 | |
|     if (EFI_ERROR (Status)) {
 | |
|       return;
 | |
|     }
 | |
| 
 | |
|     Width = 0;
 | |
|     CopyMem (
 | |
|       &Width,
 | |
|       TmpBuffer,
 | |
|       (((Length + 1) / 2) < sizeof (UINTN)) ? ((Length + 1) / 2) : sizeof (UINTN)
 | |
|       );
 | |
|     FreePool (TmpBuffer);
 | |
| 
 | |
|     StringPtr += Length;
 | |
|     if (StrnCmp (StringPtr, L"&VALUE=", StrLen (L"&VALUE=")) != 0) {
 | |
|       return;
 | |
|     }
 | |
| 
 | |
|     StringPtr += StrLen (L"&VALUE=");
 | |
| 
 | |
|     //
 | |
|     // Get Value
 | |
|     //
 | |
|     Status = GetValueOfNumber (StringPtr, &TmpBuffer, &Length);
 | |
|     if (EFI_ERROR (Status)) {
 | |
|       return;
 | |
|     }
 | |
| 
 | |
|     StringPtr += Length;
 | |
| 
 | |
|     //
 | |
|     // Skip the character "&" before "OFFSET".
 | |
|     //
 | |
|     StringPtr++;
 | |
| 
 | |
|     //
 | |
|     // Calculate Value and convert it to hex string.
 | |
|     //
 | |
|     if (Offset + Width > BlockSize) {
 | |
|       return;
 | |
|     }
 | |
| 
 | |
|     if ((Offset <= ValueOffset) && (Offset + Width >= ValueOffset + ValueWidth)) {
 | |
|       *RequestResult = CreateAltCfgString (*RequestResult, ConfigRequestHdr, ValueOffset, ValueWidth);
 | |
|       return;
 | |
|     }
 | |
|   }
 | |
| }
 | |
| 
 | |
| /**
 | |
|   This function allows a caller to extract the current configuration for one
 | |
|   or more named elements from the target driver.
 | |
| 
 | |
|   @param  This                   Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.
 | |
|   @param  Request                A null-terminated Unicode string in
 | |
|                                  <ConfigRequest> format.
 | |
|   @param  Progress               On return, points to a character in the Request
 | |
|                                  string. Points to the string's null terminator if
 | |
|                                  request was successful. Points to the most recent
 | |
|                                  '&' before the first failing name/value pair (or
 | |
|                                  the beginning of the string if the failure is in
 | |
|                                  the first name/value pair) if the request was not
 | |
|                                  successful.
 | |
|   @param  Results                A null-terminated Unicode string in
 | |
|                                  <ConfigAltResp> format which has all values filled
 | |
|                                  in for the names in the Request string. String to
 | |
|                                  be allocated by the called function.
 | |
| 
 | |
|   @retval EFI_SUCCESS            The Results is filled with the requested values.
 | |
|   @retval EFI_OUT_OF_RESOURCES   Not enough memory to store the results.
 | |
|   @retval EFI_INVALID_PARAMETER  Request is illegal syntax, or unknown name.
 | |
|   @retval EFI_NOT_FOUND          Routing data doesn't match any storage in this
 | |
|                                  driver.
 | |
| 
 | |
| **/
 | |
| EFI_STATUS
 | |
| EFIAPI
 | |
| ExtractConfig (
 | |
|   IN  CONST EFI_HII_CONFIG_ACCESS_PROTOCOL  *This,
 | |
|   IN  CONST EFI_STRING                      Request,
 | |
|   OUT EFI_STRING                            *Progress,
 | |
|   OUT EFI_STRING                            *Results
 | |
|   )
 | |
| {
 | |
|   EFI_STATUS                       Status;
 | |
|   UINTN                            BufferSize;
 | |
|   DRIVER_SAMPLE_PRIVATE_DATA       *PrivateData;
 | |
|   EFI_HII_CONFIG_ROUTING_PROTOCOL  *HiiConfigRouting;
 | |
|   EFI_STRING                       ConfigRequest;
 | |
|   EFI_STRING                       ConfigRequestHdr;
 | |
|   UINTN                            Size;
 | |
|   EFI_STRING                       Value;
 | |
|   UINTN                            ValueStrLen;
 | |
|   CHAR16                           BackupChar;
 | |
|   CHAR16                           *StrPointer;
 | |
|   BOOLEAN                          AllocatedRequest;
 | |
| 
 | |
|   if ((Progress == NULL) || (Results == NULL)) {
 | |
|     return EFI_INVALID_PARAMETER;
 | |
|   }
 | |
| 
 | |
|   //
 | |
|   // Initialize the local variables.
 | |
|   //
 | |
|   ConfigRequestHdr = NULL;
 | |
|   ConfigRequest    = NULL;
 | |
|   Size             = 0;
 | |
|   *Progress        = Request;
 | |
|   AllocatedRequest = FALSE;
 | |
| 
 | |
|   PrivateData      = DRIVER_SAMPLE_PRIVATE_FROM_THIS (This);
 | |
|   HiiConfigRouting = PrivateData->HiiConfigRouting;
 | |
| 
 | |
|   //
 | |
|   // Get Buffer Storage data from EFI variable.
 | |
|   // Try to get the current setting from variable.
 | |
|   //
 | |
|   BufferSize = sizeof (DRIVER_SAMPLE_CONFIGURATION);
 | |
|   Status     = gRT->GetVariable (
 | |
|                       VariableName,
 | |
|                       &gDriverSampleFormSetGuid,
 | |
|                       NULL,
 | |
|                       &BufferSize,
 | |
|                       &PrivateData->Configuration
 | |
|                       );
 | |
|   if (EFI_ERROR (Status)) {
 | |
|     return EFI_NOT_FOUND;
 | |
|   }
 | |
| 
 | |
|   if (Request == NULL) {
 | |
|     //
 | |
|     // Request is set to NULL, construct full request string.
 | |
|     //
 | |
| 
 | |
|     //
 | |
|     // Allocate and fill a buffer large enough to hold the <ConfigHdr> template
 | |
|     // followed by "&OFFSET=0&WIDTH=WWWWWWWWWWWWWWWW" followed by a Null-terminator
 | |
|     //
 | |
|     ConfigRequestHdr = HiiConstructConfigHdr (&gDriverSampleFormSetGuid, VariableName, PrivateData->DriverHandle[0]);
 | |
|     Size             = (StrLen (ConfigRequestHdr) + 32 + 1) * sizeof (CHAR16);
 | |
|     ConfigRequest    = AllocateZeroPool (Size);
 | |
|     ASSERT (ConfigRequest != NULL);
 | |
|     AllocatedRequest = TRUE;
 | |
|     UnicodeSPrint (ConfigRequest, Size, L"%s&OFFSET=0&WIDTH=%016LX", ConfigRequestHdr, (UINT64)BufferSize);
 | |
|     FreePool (ConfigRequestHdr);
 | |
|     ConfigRequestHdr = NULL;
 | |
|   } else {
 | |
|     //
 | |
|     // Check routing data in <ConfigHdr>.
 | |
|     // Note: if only one Storage is used, then this checking could be skipped.
 | |
|     //
 | |
|     if (!HiiIsConfigHdrMatch (Request, &gDriverSampleFormSetGuid, NULL)) {
 | |
|       return EFI_NOT_FOUND;
 | |
|     }
 | |
| 
 | |
|     //
 | |
|     // Check whether request for EFI Varstore. EFI varstore get data
 | |
|     // through hii database, not support in this path.
 | |
|     //
 | |
|     if (HiiIsConfigHdrMatch (Request, &gDriverSampleFormSetGuid, MyEfiVar)) {
 | |
|       return EFI_UNSUPPORTED;
 | |
|     }
 | |
| 
 | |
|     if (HiiIsConfigHdrMatch (Request, &gDriverSampleFormSetGuid, MyEfiBitVar)) {
 | |
|       return EFI_UNSUPPORTED;
 | |
|     }
 | |
| 
 | |
|     if (HiiIsConfigHdrMatch (Request, &gDriverSampleFormSetGuid, MyEfiUnionVar)) {
 | |
|       return EFI_UNSUPPORTED;
 | |
|     }
 | |
| 
 | |
|     //
 | |
|     // Set Request to the unified request string.
 | |
|     //
 | |
|     ConfigRequest = Request;
 | |
|     //
 | |
|     // Check whether Request includes Request Element.
 | |
|     //
 | |
|     if (StrStr (Request, L"OFFSET") == NULL) {
 | |
|       //
 | |
|       // Check Request Element does exist in Reques String
 | |
|       //
 | |
|       StrPointer = StrStr (Request, L"PATH");
 | |
|       if (StrPointer == NULL) {
 | |
|         return EFI_INVALID_PARAMETER;
 | |
|       }
 | |
| 
 | |
|       if (StrStr (StrPointer, L"&") == NULL) {
 | |
|         Size          = (StrLen (Request) + 32 + 1) * sizeof (CHAR16);
 | |
|         ConfigRequest = AllocateZeroPool (Size);
 | |
|         ASSERT (ConfigRequest != NULL);
 | |
|         AllocatedRequest = TRUE;
 | |
|         UnicodeSPrint (ConfigRequest, Size, L"%s&OFFSET=0&WIDTH=%016LX", Request, (UINT64)BufferSize);
 | |
|       }
 | |
|     }
 | |
|   }
 | |
| 
 | |
|   //
 | |
|   // Check if requesting Name/Value storage
 | |
|   //
 | |
|   if (StrStr (ConfigRequest, L"OFFSET") == NULL) {
 | |
|     //
 | |
|     // Update Name/Value storage Names
 | |
|     //
 | |
|     Status = LoadNameValueNames (PrivateData);
 | |
|     if (EFI_ERROR (Status)) {
 | |
|       return Status;
 | |
|     }
 | |
| 
 | |
|     //
 | |
|     // Allocate memory for <ConfigResp>, e.g. Name0=0x11, Name1=0x1234, Name2="ABCD"
 | |
|     // <Request>   ::=<ConfigHdr>&Name0&Name1&Name2
 | |
|     // <ConfigResp>::=<ConfigHdr>&Name0=11&Name1=1234&Name2=0041004200430044
 | |
|     //
 | |
|     BufferSize = (StrLen (ConfigRequest) +
 | |
|                   1 + sizeof (PrivateData->Configuration.NameValueVar0) * 2 +
 | |
|                   1 + sizeof (PrivateData->Configuration.NameValueVar1) * 2 +
 | |
|                   1 + sizeof (PrivateData->Configuration.NameValueVar2) * 2 + 1) * sizeof (CHAR16);
 | |
|     *Results = AllocateZeroPool (BufferSize);
 | |
|     ASSERT (*Results != NULL);
 | |
|     StrCpyS (*Results, BufferSize / sizeof (CHAR16), ConfigRequest);
 | |
|     Value = *Results;
 | |
| 
 | |
|     //
 | |
|     // Append value of NameValueVar0, type is UINT8
 | |
|     //
 | |
|     if ((Value = StrStr (*Results, PrivateData->NameValueName[0])) != NULL) {
 | |
|       Value      += StrLen (PrivateData->NameValueName[0]);
 | |
|       ValueStrLen = ((sizeof (PrivateData->Configuration.NameValueVar0) * 2) + 1);
 | |
|       CopyMem (Value + ValueStrLen, Value, StrSize (Value));
 | |
| 
 | |
|       BackupChar = Value[ValueStrLen];
 | |
|       *Value++   = L'=';
 | |
|       UnicodeValueToStringS (
 | |
|         Value,
 | |
|         BufferSize - ((UINTN)Value - (UINTN)*Results),
 | |
|         PREFIX_ZERO | RADIX_HEX,
 | |
|         PrivateData->Configuration.NameValueVar0,
 | |
|         sizeof (PrivateData->Configuration.NameValueVar0) * 2
 | |
|         );
 | |
|       Value += StrnLenS (Value, (BufferSize - ((UINTN)Value - (UINTN)*Results)) / sizeof (CHAR16));
 | |
|       *Value = BackupChar;
 | |
|     }
 | |
| 
 | |
|     //
 | |
|     // Append value of NameValueVar1, type is UINT16
 | |
|     //
 | |
|     if ((Value = StrStr (*Results, PrivateData->NameValueName[1])) != NULL) {
 | |
|       Value      += StrLen (PrivateData->NameValueName[1]);
 | |
|       ValueStrLen = ((sizeof (PrivateData->Configuration.NameValueVar1) * 2) + 1);
 | |
|       CopyMem (Value + ValueStrLen, Value, StrSize (Value));
 | |
| 
 | |
|       BackupChar = Value[ValueStrLen];
 | |
|       *Value++   = L'=';
 | |
|       UnicodeValueToStringS (
 | |
|         Value,
 | |
|         BufferSize - ((UINTN)Value - (UINTN)*Results),
 | |
|         PREFIX_ZERO | RADIX_HEX,
 | |
|         PrivateData->Configuration.NameValueVar1,
 | |
|         sizeof (PrivateData->Configuration.NameValueVar1) * 2
 | |
|         );
 | |
|       Value += StrnLenS (Value, (BufferSize - ((UINTN)Value - (UINTN)*Results)) / sizeof (CHAR16));
 | |
|       *Value = BackupChar;
 | |
|     }
 | |
| 
 | |
|     //
 | |
|     // Append value of NameValueVar2, type is CHAR16 *
 | |
|     //
 | |
|     if ((Value = StrStr (*Results, PrivateData->NameValueName[2])) != NULL) {
 | |
|       Value      += StrLen (PrivateData->NameValueName[2]);
 | |
|       ValueStrLen = StrLen (PrivateData->Configuration.NameValueVar2) * 4 + 1;
 | |
|       CopyMem (Value + ValueStrLen, Value, StrSize (Value));
 | |
| 
 | |
|       *Value++ = L'=';
 | |
|       //
 | |
|       // Convert Unicode String to Config String, e.g. "ABCD" => "0041004200430044"
 | |
|       //
 | |
|       StrPointer = (CHAR16 *)PrivateData->Configuration.NameValueVar2;
 | |
|       for ( ; *StrPointer != L'\0'; StrPointer++) {
 | |
|         UnicodeValueToStringS (
 | |
|           Value,
 | |
|           BufferSize - ((UINTN)Value - (UINTN)*Results),
 | |
|           PREFIX_ZERO | RADIX_HEX,
 | |
|           *StrPointer,
 | |
|           4
 | |
|           );
 | |
|         Value += StrnLenS (Value, (BufferSize - ((UINTN)Value - (UINTN)*Results)) / sizeof (CHAR16));
 | |
|       }
 | |
|     }
 | |
| 
 | |
|     Status = EFI_SUCCESS;
 | |
|   } else {
 | |
|     //
 | |
|     // Convert buffer data to <ConfigResp> by helper function BlockToConfig()
 | |
|     //
 | |
|     Status = HiiConfigRouting->BlockToConfig (
 | |
|                                  HiiConfigRouting,
 | |
|                                  ConfigRequest,
 | |
|                                  (UINT8 *)&PrivateData->Configuration,
 | |
|                                  BufferSize,
 | |
|                                  Results,
 | |
|                                  Progress
 | |
|                                  );
 | |
|     if (!EFI_ERROR (Status)) {
 | |
|       ConfigRequestHdr = HiiConstructConfigHdr (&gDriverSampleFormSetGuid, VariableName, PrivateData->DriverHandle[0]);
 | |
|       AppendAltCfgString (Results, ConfigRequestHdr);
 | |
|     }
 | |
|   }
 | |
| 
 | |
|   //
 | |
|   // Free the allocated config request string.
 | |
|   //
 | |
|   if (AllocatedRequest) {
 | |
|     FreePool (ConfigRequest);
 | |
|   }
 | |
| 
 | |
|   if (ConfigRequestHdr != NULL) {
 | |
|     FreePool (ConfigRequestHdr);
 | |
|   }
 | |
| 
 | |
|   //
 | |
|   // Set Progress string to the original request string.
 | |
|   //
 | |
|   if (Request == NULL) {
 | |
|     *Progress = NULL;
 | |
|   } else if (StrStr (Request, L"OFFSET") == NULL) {
 | |
|     *Progress = Request + StrLen (Request);
 | |
|   }
 | |
| 
 | |
|   return Status;
 | |
| }
 | |
| 
 | |
| /**
 | |
|   This function processes the results of changes in configuration.
 | |
| 
 | |
|   @param  This                   Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.
 | |
|   @param  Configuration          A null-terminated Unicode string in <ConfigResp>
 | |
|                                  format.
 | |
|   @param  Progress               A pointer to a string filled in with the offset of
 | |
|                                  the most recent '&' before the first failing
 | |
|                                  name/value pair (or the beginning of the string if
 | |
|                                  the failure is in the first name/value pair) or
 | |
|                                  the terminating NULL if all was successful.
 | |
| 
 | |
|   @retval EFI_SUCCESS            The Results is processed successfully.
 | |
|   @retval EFI_INVALID_PARAMETER  Configuration is NULL.
 | |
|   @retval EFI_NOT_FOUND          Routing data doesn't match any storage in this
 | |
|                                  driver.
 | |
| 
 | |
| **/
 | |
| EFI_STATUS
 | |
| EFIAPI
 | |
| RouteConfig (
 | |
|   IN  CONST EFI_HII_CONFIG_ACCESS_PROTOCOL  *This,
 | |
|   IN  CONST EFI_STRING                      Configuration,
 | |
|   OUT EFI_STRING                            *Progress
 | |
|   )
 | |
| {
 | |
|   EFI_STATUS                       Status;
 | |
|   UINTN                            BufferSize;
 | |
|   DRIVER_SAMPLE_PRIVATE_DATA       *PrivateData;
 | |
|   EFI_HII_CONFIG_ROUTING_PROTOCOL  *HiiConfigRouting;
 | |
|   CHAR16                           *Value;
 | |
|   CHAR16                           *StrPtr;
 | |
|   CHAR16                           TemStr[5];
 | |
|   UINT8                            *DataBuffer;
 | |
|   UINT8                            DigitUint8;
 | |
|   UINTN                            Index;
 | |
|   CHAR16                           *StrBuffer;
 | |
| 
 | |
|   if ((Configuration == NULL) || (Progress == NULL)) {
 | |
|     return EFI_INVALID_PARAMETER;
 | |
|   }
 | |
| 
 | |
|   PrivateData      = DRIVER_SAMPLE_PRIVATE_FROM_THIS (This);
 | |
|   HiiConfigRouting = PrivateData->HiiConfigRouting;
 | |
|   *Progress        = Configuration;
 | |
| 
 | |
|   //
 | |
|   // Check routing data in <ConfigHdr>.
 | |
|   // Note: if only one Storage is used, then this checking could be skipped.
 | |
|   //
 | |
|   if (!HiiIsConfigHdrMatch (Configuration, &gDriverSampleFormSetGuid, NULL)) {
 | |
|     return EFI_NOT_FOUND;
 | |
|   }
 | |
| 
 | |
|   //
 | |
|   // Check whether request for EFI Varstore. EFI varstore get data
 | |
|   // through hii database, not support in this path.
 | |
|   //
 | |
|   if (HiiIsConfigHdrMatch (Configuration, &gDriverSampleFormSetGuid, MyEfiVar)) {
 | |
|     return EFI_UNSUPPORTED;
 | |
|   }
 | |
| 
 | |
|   if (HiiIsConfigHdrMatch (Configuration, &gDriverSampleFormSetGuid, MyEfiBitVar)) {
 | |
|     return EFI_UNSUPPORTED;
 | |
|   }
 | |
| 
 | |
|   if (HiiIsConfigHdrMatch (Configuration, &gDriverSampleFormSetGuid, MyEfiUnionVar)) {
 | |
|     return EFI_UNSUPPORTED;
 | |
|   }
 | |
| 
 | |
|   //
 | |
|   // Get Buffer Storage data from EFI variable
 | |
|   //
 | |
|   BufferSize = sizeof (DRIVER_SAMPLE_CONFIGURATION);
 | |
|   Status     = gRT->GetVariable (
 | |
|                       VariableName,
 | |
|                       &gDriverSampleFormSetGuid,
 | |
|                       NULL,
 | |
|                       &BufferSize,
 | |
|                       &PrivateData->Configuration
 | |
|                       );
 | |
|   if (EFI_ERROR (Status)) {
 | |
|     return Status;
 | |
|   }
 | |
| 
 | |
|   //
 | |
|   // Check if configuring Name/Value storage
 | |
|   //
 | |
|   if (StrStr (Configuration, L"OFFSET") == NULL) {
 | |
|     //
 | |
|     // Update Name/Value storage Names
 | |
|     //
 | |
|     Status = LoadNameValueNames (PrivateData);
 | |
|     if (EFI_ERROR (Status)) {
 | |
|       return Status;
 | |
|     }
 | |
| 
 | |
|     //
 | |
|     // Convert value for NameValueVar0
 | |
|     //
 | |
|     if ((Value = StrStr (Configuration, PrivateData->NameValueName[0])) != NULL) {
 | |
|       //
 | |
|       // Skip "Name="
 | |
|       //
 | |
|       Value += StrLen (PrivateData->NameValueName[0]);
 | |
|       Value++;
 | |
|       //
 | |
|       // Get Value String
 | |
|       //
 | |
|       StrPtr = StrStr (Value, L"&");
 | |
|       if (StrPtr == NULL) {
 | |
|         StrPtr = Value + StrLen (Value);
 | |
|       }
 | |
| 
 | |
|       //
 | |
|       // Convert Value to Buffer data
 | |
|       //
 | |
|       DataBuffer = (UINT8 *)&PrivateData->Configuration.NameValueVar0;
 | |
|       ZeroMem (TemStr, sizeof (TemStr));
 | |
|       for (Index = 0, StrPtr--; StrPtr >= Value; StrPtr--, Index++) {
 | |
|         TemStr[0]  = *StrPtr;
 | |
|         DigitUint8 = (UINT8)StrHexToUint64 (TemStr);
 | |
|         if ((Index & 1) == 0) {
 | |
|           DataBuffer[Index/2] = DigitUint8;
 | |
|         } else {
 | |
|           DataBuffer[Index/2] = (UINT8)((UINT8)(DigitUint8 << 4) + DataBuffer[Index/2]);
 | |
|         }
 | |
|       }
 | |
|     }
 | |
| 
 | |
|     //
 | |
|     // Convert value for NameValueVar1
 | |
|     //
 | |
|     if ((Value = StrStr (Configuration, PrivateData->NameValueName[1])) != NULL) {
 | |
|       //
 | |
|       // Skip "Name="
 | |
|       //
 | |
|       Value += StrLen (PrivateData->NameValueName[1]);
 | |
|       Value++;
 | |
|       //
 | |
|       // Get Value String
 | |
|       //
 | |
|       StrPtr = StrStr (Value, L"&");
 | |
|       if (StrPtr == NULL) {
 | |
|         StrPtr = Value + StrLen (Value);
 | |
|       }
 | |
| 
 | |
|       //
 | |
|       // Convert Value to Buffer data
 | |
|       //
 | |
|       DataBuffer = (UINT8 *)&PrivateData->Configuration.NameValueVar1;
 | |
|       ZeroMem (TemStr, sizeof (TemStr));
 | |
|       for (Index = 0, StrPtr--; StrPtr >= Value; StrPtr--, Index++) {
 | |
|         TemStr[0]  = *StrPtr;
 | |
|         DigitUint8 = (UINT8)StrHexToUint64 (TemStr);
 | |
|         if ((Index & 1) == 0) {
 | |
|           DataBuffer[Index/2] = DigitUint8;
 | |
|         } else {
 | |
|           DataBuffer[Index/2] = (UINT8)((UINT8)(DigitUint8 << 4) + DataBuffer[Index/2]);
 | |
|         }
 | |
|       }
 | |
|     }
 | |
| 
 | |
|     //
 | |
|     // Convert value for NameValueVar2
 | |
|     //
 | |
|     if ((Value = StrStr (Configuration, PrivateData->NameValueName[2])) != NULL) {
 | |
|       //
 | |
|       // Skip "Name="
 | |
|       //
 | |
|       Value += StrLen (PrivateData->NameValueName[2]);
 | |
|       Value++;
 | |
|       //
 | |
|       // Get Value String
 | |
|       //
 | |
|       StrPtr = StrStr (Value, L"&");
 | |
|       if (StrPtr == NULL) {
 | |
|         StrPtr = Value + StrLen (Value);
 | |
|       }
 | |
| 
 | |
|       //
 | |
|       // Convert Config String to Unicode String, e.g "0041004200430044" => "ABCD"
 | |
|       //
 | |
|       StrBuffer = (CHAR16 *)PrivateData->Configuration.NameValueVar2;
 | |
|       ZeroMem (TemStr, sizeof (TemStr));
 | |
|       while (Value < StrPtr) {
 | |
|         StrnCpyS (TemStr, sizeof (TemStr) / sizeof (CHAR16), Value, 4);
 | |
|         *(StrBuffer++) = (CHAR16)StrHexToUint64 (TemStr);
 | |
|         Value         += 4;
 | |
|       }
 | |
| 
 | |
|       *StrBuffer = L'\0';
 | |
|     }
 | |
| 
 | |
|     //
 | |
|     // Store Buffer Storage back to EFI variable
 | |
|     //
 | |
|     Status = gRT->SetVariable (
 | |
|                     VariableName,
 | |
|                     &gDriverSampleFormSetGuid,
 | |
|                     EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS,
 | |
|                     sizeof (DRIVER_SAMPLE_CONFIGURATION),
 | |
|                     &PrivateData->Configuration
 | |
|                     );
 | |
| 
 | |
|     return Status;
 | |
|   }
 | |
| 
 | |
|   //
 | |
|   // Convert <ConfigResp> to buffer data by helper function ConfigToBlock()
 | |
|   //
 | |
|   BufferSize = sizeof (DRIVER_SAMPLE_CONFIGURATION);
 | |
|   Status     = HiiConfigRouting->ConfigToBlock (
 | |
|                                    HiiConfigRouting,
 | |
|                                    Configuration,
 | |
|                                    (UINT8 *)&PrivateData->Configuration,
 | |
|                                    &BufferSize,
 | |
|                                    Progress
 | |
|                                    );
 | |
|   if (EFI_ERROR (Status)) {
 | |
|     return Status;
 | |
|   }
 | |
| 
 | |
|   //
 | |
|   // Store Buffer Storage back to EFI variable
 | |
|   //
 | |
|   Status = gRT->SetVariable (
 | |
|                   VariableName,
 | |
|                   &gDriverSampleFormSetGuid,
 | |
|                   EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS,
 | |
|                   sizeof (DRIVER_SAMPLE_CONFIGURATION),
 | |
|                   &PrivateData->Configuration
 | |
|                   );
 | |
| 
 | |
|   return Status;
 | |
| }
 | |
| 
 | |
| /**
 | |
|   This function processes the results of changes in configuration.
 | |
| 
 | |
|   @param  This                   Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.
 | |
|   @param  Action                 Specifies the type of action taken by the browser.
 | |
|   @param  QuestionId             A unique value which is sent to the original
 | |
|                                  exporting driver so that it can identify the type
 | |
|                                  of data to expect.
 | |
|   @param  Type                   The type of value for the question.
 | |
|   @param  Value                  A pointer to the data being sent to the original
 | |
|                                  exporting driver.
 | |
|   @param  ActionRequest          On return, points to the action requested by the
 | |
|                                  callback function.
 | |
| 
 | |
|   @retval EFI_SUCCESS            The callback successfully handled the action.
 | |
|   @retval EFI_OUT_OF_RESOURCES   Not enough storage is available to hold the
 | |
|                                  variable and its data.
 | |
|   @retval EFI_DEVICE_ERROR       The variable could not be saved.
 | |
|   @retval EFI_UNSUPPORTED        The specified Action is not supported by the
 | |
|                                  callback.
 | |
| 
 | |
| **/
 | |
| EFI_STATUS
 | |
| EFIAPI
 | |
| DriverCallback (
 | |
|   IN  CONST EFI_HII_CONFIG_ACCESS_PROTOCOL  *This,
 | |
|   IN  EFI_BROWSER_ACTION                    Action,
 | |
|   IN  EFI_QUESTION_ID                       QuestionId,
 | |
|   IN  UINT8                                 Type,
 | |
|   IN  EFI_IFR_TYPE_VALUE                    *Value,
 | |
|   OUT EFI_BROWSER_ACTION_REQUEST            *ActionRequest
 | |
|   )
 | |
| {
 | |
|   DRIVER_SAMPLE_PRIVATE_DATA   *PrivateData;
 | |
|   EFI_STATUS                   Status;
 | |
|   VOID                         *StartOpCodeHandle;
 | |
|   VOID                         *OptionsOpCodeHandle;
 | |
|   EFI_IFR_GUID_LABEL           *StartLabel;
 | |
|   VOID                         *EndOpCodeHandle;
 | |
|   EFI_IFR_GUID_LABEL           *EndLabel;
 | |
|   EFI_INPUT_KEY                Key;
 | |
|   DRIVER_SAMPLE_CONFIGURATION  *Configuration;
 | |
|   MY_EFI_VARSTORE_DATA         *EfiData;
 | |
|   EFI_FORM_ID                  FormId;
 | |
|   EFI_STRING                   Progress;
 | |
|   EFI_STRING                   Results;
 | |
|   UINT32                       ProgressErr;
 | |
|   CHAR16                       *TmpStr;
 | |
|   UINTN                        Index;
 | |
|   UINT64                       BufferValue;
 | |
|   EFI_HII_POPUP_SELECTION      UserSelection;
 | |
| 
 | |
|   UserSelection = 0xFF;
 | |
| 
 | |
|   if (((Value == NULL) && (Action != EFI_BROWSER_ACTION_FORM_OPEN) && (Action != EFI_BROWSER_ACTION_FORM_CLOSE)) ||
 | |
|       (ActionRequest == NULL))
 | |
|   {
 | |
|     return EFI_INVALID_PARAMETER;
 | |
|   }
 | |
| 
 | |
|   FormId      = 0;
 | |
|   ProgressErr = 0;
 | |
|   Status      = EFI_SUCCESS;
 | |
|   BufferValue = 3;
 | |
|   PrivateData = DRIVER_SAMPLE_PRIVATE_FROM_THIS (This);
 | |
| 
 | |
|   switch (Action) {
 | |
|     case EFI_BROWSER_ACTION_FORM_OPEN:
 | |
|     {
 | |
|       if (QuestionId == 0x1234) {
 | |
|         //
 | |
|         // Sample CallBack for UEFI FORM_OPEN action:
 | |
|         //   Add Save action into Form 3 when Form 1 is opened.
 | |
|         //   This will be done only in FORM_OPEN CallBack of question with ID 0x1234 from Form 1.
 | |
|         //
 | |
|         PrivateData = DRIVER_SAMPLE_PRIVATE_FROM_THIS (This);
 | |
| 
 | |
|         //
 | |
|         // Initialize the container for dynamic opcodes
 | |
|         //
 | |
|         StartOpCodeHandle = HiiAllocateOpCodeHandle ();
 | |
|         ASSERT (StartOpCodeHandle != NULL);
 | |
| 
 | |
|         //
 | |
|         // Create Hii Extend Label OpCode as the start opcode
 | |
|         //
 | |
|         StartLabel               = (EFI_IFR_GUID_LABEL *)HiiCreateGuidOpCode (StartOpCodeHandle, &gEfiIfrTianoGuid, NULL, sizeof (EFI_IFR_GUID_LABEL));
 | |
|         StartLabel->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL;
 | |
|         StartLabel->Number       = LABEL_UPDATE2;
 | |
| 
 | |
|         HiiCreateActionOpCode (
 | |
|           StartOpCodeHandle,                // Container for dynamic created opcodes
 | |
|           0x1238,                           // Question ID
 | |
|           STRING_TOKEN (STR_SAVE_TEXT),     // Prompt text
 | |
|           STRING_TOKEN (STR_SAVE_TEXT),     // Help text
 | |
|           EFI_IFR_FLAG_CALLBACK,            // Question flag
 | |
|           0                                 // Action String ID
 | |
|           );
 | |
| 
 | |
|         HiiUpdateForm (
 | |
|           PrivateData->HiiHandle[0],  // HII handle
 | |
|           &gDriverSampleFormSetGuid,  // Formset GUID
 | |
|           0x3,                        // Form ID
 | |
|           StartOpCodeHandle,          // Label for where to insert opcodes
 | |
|           NULL                        // Insert data
 | |
|           );
 | |
| 
 | |
|         HiiFreeOpCodeHandle (StartOpCodeHandle);
 | |
|       }
 | |
| 
 | |
|       if (QuestionId == 0x1247) {
 | |
|         Status = InternalStartMonitor ();
 | |
|         ASSERT_EFI_ERROR (Status);
 | |
|       }
 | |
| 
 | |
|       break;
 | |
|     }
 | |
| 
 | |
|     case EFI_BROWSER_ACTION_FORM_CLOSE:
 | |
|     {
 | |
|       if (QuestionId == 0x5678) {
 | |
|         //
 | |
|         // Sample CallBack for UEFI FORM_CLOSE action:
 | |
|         //   Show up a pop-up to specify Form 3 will be closed when exit Form 3.
 | |
|         //
 | |
|         do {
 | |
|           CreatePopUp (
 | |
|             EFI_LIGHTGRAY | EFI_BACKGROUND_BLUE,
 | |
|             &Key,
 | |
|             L"",
 | |
|             L"You are going to leave third Form!",
 | |
|             L"Press ESC or ENTER to continue ...",
 | |
|             L"",
 | |
|             NULL
 | |
|             );
 | |
|         } while ((Key.ScanCode != SCAN_ESC) && (Key.UnicodeChar != CHAR_CARRIAGE_RETURN));
 | |
|       }
 | |
| 
 | |
|       if (QuestionId == 0x1247) {
 | |
|         Status = InternalStopMonitor ();
 | |
|         ASSERT_EFI_ERROR (Status);
 | |
|       }
 | |
| 
 | |
|       break;
 | |
|     }
 | |
| 
 | |
|     case EFI_BROWSER_ACTION_RETRIEVE:
 | |
|     {
 | |
|       switch (QuestionId ) {
 | |
|         case 0x1248:
 | |
|           if (Type != EFI_IFR_TYPE_REF) {
 | |
|             return EFI_INVALID_PARAMETER;
 | |
|           }
 | |
| 
 | |
|           Value->ref.FormId = 0x3;
 | |
|           break;
 | |
| 
 | |
|         case 0x5678:
 | |
|         case 0x1247:
 | |
|           //
 | |
|           // We will reach here once the Question is refreshed
 | |
|           //
 | |
| 
 | |
|           //
 | |
|           // Initialize the container for dynamic opcodes
 | |
|           //
 | |
|           StartOpCodeHandle = HiiAllocateOpCodeHandle ();
 | |
|           ASSERT (StartOpCodeHandle != NULL);
 | |
| 
 | |
|           //
 | |
|           // Create Hii Extend Label OpCode as the start opcode
 | |
|           //
 | |
|           StartLabel               = (EFI_IFR_GUID_LABEL *)HiiCreateGuidOpCode (StartOpCodeHandle, &gEfiIfrTianoGuid, NULL, sizeof (EFI_IFR_GUID_LABEL));
 | |
|           StartLabel->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL;
 | |
|           if (QuestionId == 0x5678) {
 | |
|             StartLabel->Number = LABEL_UPDATE2;
 | |
|             FormId             = 0x03;
 | |
|             PrivateData->Configuration.DynamicRefresh++;
 | |
|           } else if (QuestionId == 0x1247 ) {
 | |
|             StartLabel->Number = LABEL_UPDATE3;
 | |
|             FormId             = 0x06;
 | |
|             PrivateData->Configuration.RefreshGuidCount++;
 | |
|           }
 | |
| 
 | |
|           HiiCreateActionOpCode (
 | |
|             StartOpCodeHandle,              // Container for dynamic created opcodes
 | |
|             0x1237,                         // Question ID
 | |
|             STRING_TOKEN (STR_EXIT_TEXT),   // Prompt text
 | |
|             STRING_TOKEN (STR_EXIT_TEXT),   // Help text
 | |
|             EFI_IFR_FLAG_CALLBACK,          // Question flag
 | |
|             0                               // Action String ID
 | |
|             );
 | |
| 
 | |
|           HiiUpdateForm (
 | |
|             PrivateData->HiiHandle[0],      // HII handle
 | |
|             &gDriverSampleFormSetGuid,      // Formset GUID
 | |
|             FormId,                         // Form ID
 | |
|             StartOpCodeHandle,              // Label for where to insert opcodes
 | |
|             NULL                            // Insert data
 | |
|             );
 | |
| 
 | |
|           HiiFreeOpCodeHandle (StartOpCodeHandle);
 | |
| 
 | |
|           //
 | |
|           // Refresh the Question value
 | |
|           //
 | |
|           Status = gRT->SetVariable (
 | |
|                           VariableName,
 | |
|                           &gDriverSampleFormSetGuid,
 | |
|                           EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS,
 | |
|                           sizeof (DRIVER_SAMPLE_CONFIGURATION),
 | |
|                           &PrivateData->Configuration
 | |
|                           );
 | |
| 
 | |
|           if (QuestionId == 0x5678) {
 | |
|             //
 | |
|             // Update uncommitted data of Browser
 | |
|             //
 | |
|             EfiData = AllocateZeroPool (sizeof (MY_EFI_VARSTORE_DATA));
 | |
|             ASSERT (EfiData != NULL);
 | |
|             if (HiiGetBrowserData (&gDriverSampleFormSetGuid, MyEfiVar, sizeof (MY_EFI_VARSTORE_DATA), (UINT8 *)EfiData)) {
 | |
|               EfiData->Field8 = 111;
 | |
|               HiiSetBrowserData (
 | |
|                 &gDriverSampleFormSetGuid,
 | |
|                 MyEfiVar,
 | |
|                 sizeof (MY_EFI_VARSTORE_DATA),
 | |
|                 (UINT8 *)EfiData,
 | |
|                 NULL
 | |
|                 );
 | |
|             }
 | |
| 
 | |
|             FreePool (EfiData);
 | |
|           }
 | |
| 
 | |
|           break;
 | |
|       }
 | |
| 
 | |
|       break;
 | |
|     }
 | |
| 
 | |
|     case EFI_BROWSER_ACTION_DEFAULT_STANDARD:
 | |
|     {
 | |
|       switch (QuestionId) {
 | |
|         case 0x1240:
 | |
|           Value->u8 = DEFAULT_CLASS_STANDARD_VALUE;
 | |
|           break;
 | |
| 
 | |
|         case 0x1252:
 | |
|           for (Index = 0; Index < 3; Index++) {
 | |
|             SetArrayData (Value, EFI_IFR_TYPE_NUM_SIZE_8, Index, BufferValue--);
 | |
|           }
 | |
| 
 | |
|           break;
 | |
| 
 | |
|         case 0x6666:
 | |
|           Value->u8 = 12;
 | |
|           break;
 | |
| 
 | |
|         default:
 | |
|           Status = EFI_UNSUPPORTED;
 | |
|           break;
 | |
|       }
 | |
| 
 | |
|       break;
 | |
|     }
 | |
| 
 | |
|     case EFI_BROWSER_ACTION_DEFAULT_MANUFACTURING:
 | |
|     {
 | |
|       switch (QuestionId) {
 | |
|         case 0x1240:
 | |
|           Value->u8 = DEFAULT_CLASS_MANUFACTURING_VALUE;
 | |
|           break;
 | |
| 
 | |
|         case 0x6666:
 | |
|           Value->u8 = 13;
 | |
|           break;
 | |
| 
 | |
|         default:
 | |
|           Status = EFI_UNSUPPORTED;
 | |
|           break;
 | |
|       }
 | |
| 
 | |
|       break;
 | |
|     }
 | |
| 
 | |
|     case EFI_BROWSER_ACTION_CHANGING:
 | |
|     {
 | |
|       switch (QuestionId) {
 | |
|         case 0x1249:
 | |
|         {
 | |
|           if (Type != EFI_IFR_TYPE_REF) {
 | |
|             return EFI_INVALID_PARAMETER;
 | |
|           }
 | |
| 
 | |
|           Value->ref.FormId = 0x1234;
 | |
|           break;
 | |
|         }
 | |
|         case 0x1234:
 | |
|           //
 | |
|           // Initialize the container for dynamic opcodes
 | |
|           //
 | |
|           StartOpCodeHandle = HiiAllocateOpCodeHandle ();
 | |
|           ASSERT (StartOpCodeHandle != NULL);
 | |
| 
 | |
|           EndOpCodeHandle = HiiAllocateOpCodeHandle ();
 | |
|           ASSERT (EndOpCodeHandle != NULL);
 | |
| 
 | |
|           //
 | |
|           // Create Hii Extend Label OpCode as the start opcode
 | |
|           //
 | |
|           StartLabel               = (EFI_IFR_GUID_LABEL *)HiiCreateGuidOpCode (StartOpCodeHandle, &gEfiIfrTianoGuid, NULL, sizeof (EFI_IFR_GUID_LABEL));
 | |
|           StartLabel->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL;
 | |
|           StartLabel->Number       = LABEL_UPDATE1;
 | |
| 
 | |
|           //
 | |
|           // Create Hii Extend Label OpCode as the end opcode
 | |
|           //
 | |
|           EndLabel               = (EFI_IFR_GUID_LABEL *)HiiCreateGuidOpCode (EndOpCodeHandle, &gEfiIfrTianoGuid, NULL, sizeof (EFI_IFR_GUID_LABEL));
 | |
|           EndLabel->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL;
 | |
|           EndLabel->Number       = LABEL_END;
 | |
| 
 | |
|           HiiCreateActionOpCode (
 | |
|             StartOpCodeHandle,            // Container for dynamic created opcodes
 | |
|             0x1237,                       // Question ID
 | |
|             STRING_TOKEN (STR_EXIT_TEXT), // Prompt text
 | |
|             STRING_TOKEN (STR_EXIT_TEXT), // Help text
 | |
|             EFI_IFR_FLAG_CALLBACK,        // Question flag
 | |
|             0                             // Action String ID
 | |
|             );
 | |
| 
 | |
|           //
 | |
|           // Create Option OpCode
 | |
|           //
 | |
|           OptionsOpCodeHandle = HiiAllocateOpCodeHandle ();
 | |
|           ASSERT (OptionsOpCodeHandle != NULL);
 | |
| 
 | |
|           HiiCreateOneOfOptionOpCode (
 | |
|             OptionsOpCodeHandle,
 | |
|             STRING_TOKEN (STR_BOOT_OPTION1),
 | |
|             0,
 | |
|             EFI_IFR_NUMERIC_SIZE_1,
 | |
|             1
 | |
|             );
 | |
| 
 | |
|           HiiCreateOneOfOptionOpCode (
 | |
|             OptionsOpCodeHandle,
 | |
|             STRING_TOKEN (STR_BOOT_OPTION2),
 | |
|             0,
 | |
|             EFI_IFR_NUMERIC_SIZE_1,
 | |
|             2
 | |
|             );
 | |
| 
 | |
|           //
 | |
|           // Prepare initial value for the dynamic created oneof Question
 | |
|           //
 | |
|           PrivateData->Configuration.DynamicOneof = 2;
 | |
|           Status                                  = gRT->SetVariable (
 | |
|                                                            VariableName,
 | |
|                                                            &gDriverSampleFormSetGuid,
 | |
|                                                            EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS,
 | |
|                                                            sizeof (DRIVER_SAMPLE_CONFIGURATION),
 | |
|                                                            &PrivateData->Configuration
 | |
|                                                            );
 | |
| 
 | |
|           //
 | |
|           // Set initial vlaue of dynamic created oneof Question in Form Browser
 | |
|           //
 | |
|           Configuration = AllocateZeroPool (sizeof (DRIVER_SAMPLE_CONFIGURATION));
 | |
|           ASSERT (Configuration != NULL);
 | |
|           if (HiiGetBrowserData (&gDriverSampleFormSetGuid, VariableName, sizeof (DRIVER_SAMPLE_CONFIGURATION), (UINT8 *)Configuration)) {
 | |
|             Configuration->DynamicOneof = 2;
 | |
| 
 | |
|             //
 | |
|             // Update uncommitted data of Browser
 | |
|             //
 | |
|             HiiSetBrowserData (
 | |
|               &gDriverSampleFormSetGuid,
 | |
|               VariableName,
 | |
|               sizeof (DRIVER_SAMPLE_CONFIGURATION),
 | |
|               (UINT8 *)Configuration,
 | |
|               NULL
 | |
|               );
 | |
|           }
 | |
| 
 | |
|           FreePool (Configuration);
 | |
| 
 | |
|           HiiCreateOneOfOpCode (
 | |
|             StartOpCodeHandle,                     // Container for dynamic created opcodes
 | |
|             0x8001,                                // Question ID (or call it "key")
 | |
|             CONFIGURATION_VARSTORE_ID,             // VarStore ID
 | |
|             (UINT16)DYNAMIC_ONE_OF_VAR_OFFSET,     // Offset in Buffer Storage
 | |
|             STRING_TOKEN (STR_ONE_OF_PROMPT),      // Question prompt text
 | |
|             STRING_TOKEN (STR_ONE_OF_HELP),        // Question help text
 | |
|             EFI_IFR_FLAG_CALLBACK,                 // Question flag
 | |
|             EFI_IFR_NUMERIC_SIZE_1,                // Data type of Question Value
 | |
|             OptionsOpCodeHandle,                   // Option Opcode list
 | |
|             NULL                                   // Default Opcode is NULl
 | |
|             );
 | |
| 
 | |
|           HiiCreateOrderedListOpCode (
 | |
|             StartOpCodeHandle,                       // Container for dynamic created opcodes
 | |
|             0x8002,                                  // Question ID
 | |
|             CONFIGURATION_VARSTORE_ID,               // VarStore ID
 | |
|             (UINT16)DYNAMIC_ORDERED_LIST_VAR_OFFSET, // Offset in Buffer Storage
 | |
|             STRING_TOKEN (STR_BOOT_OPTIONS),         // Question prompt text
 | |
|             STRING_TOKEN (STR_BOOT_OPTIONS),         // Question help text
 | |
|             EFI_IFR_FLAG_RESET_REQUIRED,             // Question flag
 | |
|             0,                                       // Ordered list flag, e.g. EFI_IFR_UNIQUE_SET
 | |
|             EFI_IFR_NUMERIC_SIZE_1,                  // Data type of Question value
 | |
|             5,                                       // Maximum container
 | |
|             OptionsOpCodeHandle,                     // Option Opcode list
 | |
|             NULL                                     // Default Opcode is NULl
 | |
|             );
 | |
| 
 | |
|           HiiCreateTextOpCode (
 | |
|             StartOpCodeHandle,
 | |
|             STRING_TOKEN (STR_TEXT_SAMPLE_HELP),
 | |
|             STRING_TOKEN (STR_TEXT_SAMPLE_HELP),
 | |
|             STRING_TOKEN (STR_TEXT_SAMPLE_STRING)
 | |
|             );
 | |
| 
 | |
|           HiiCreateDateOpCode (
 | |
|             StartOpCodeHandle,
 | |
|             0x8004,
 | |
|             0x0,
 | |
|             0x0,
 | |
|             STRING_TOKEN (STR_DATE_SAMPLE_HELP),
 | |
|             STRING_TOKEN (STR_DATE_SAMPLE_HELP),
 | |
|             0,
 | |
|             QF_DATE_STORAGE_TIME,
 | |
|             NULL
 | |
|             );
 | |
| 
 | |
|           HiiCreateTimeOpCode (
 | |
|             StartOpCodeHandle,
 | |
|             0x8005,
 | |
|             0x0,
 | |
|             0x0,
 | |
|             STRING_TOKEN (STR_TIME_SAMPLE_HELP),
 | |
|             STRING_TOKEN (STR_TIME_SAMPLE_HELP),
 | |
|             0,
 | |
|             QF_TIME_STORAGE_TIME,
 | |
|             NULL
 | |
|             );
 | |
| 
 | |
|           HiiCreateGotoOpCode (
 | |
|             StartOpCodeHandle,             // Container for dynamic created opcodes
 | |
|             1,                             // Target Form ID
 | |
|             STRING_TOKEN (STR_GOTO_FORM1), // Prompt text
 | |
|             STRING_TOKEN (STR_GOTO_HELP),  // Help text
 | |
|             0,                             // Question flag
 | |
|             0x8003                         // Question ID
 | |
|             );
 | |
| 
 | |
|           HiiUpdateForm (
 | |
|             PrivateData->HiiHandle[0], // HII handle
 | |
|             &gDriverSampleFormSetGuid, // Formset GUID
 | |
|             0x1234,                    // Form ID
 | |
|             StartOpCodeHandle,         // Label for where to insert opcodes
 | |
|             EndOpCodeHandle            // Replace data
 | |
|             );
 | |
| 
 | |
|           HiiFreeOpCodeHandle (StartOpCodeHandle);
 | |
|           HiiFreeOpCodeHandle (OptionsOpCodeHandle);
 | |
|           HiiFreeOpCodeHandle (EndOpCodeHandle);
 | |
|           break;
 | |
| 
 | |
|         default:
 | |
|           break;
 | |
|       }
 | |
| 
 | |
|       break;
 | |
|     }
 | |
| 
 | |
|     case EFI_BROWSER_ACTION_CHANGED:
 | |
|       switch (QuestionId) {
 | |
|         case 0x1237:
 | |
|           //
 | |
|           // User press "Exit now", request Browser to exit
 | |
|           //
 | |
|           *ActionRequest = EFI_BROWSER_ACTION_REQUEST_EXIT;
 | |
|           break;
 | |
| 
 | |
|         case 0x1238:
 | |
|           //
 | |
|           // User press "Save now", request Browser to save the uncommitted data.
 | |
|           //
 | |
|           *ActionRequest = EFI_BROWSER_ACTION_REQUEST_SUBMIT;
 | |
|           break;
 | |
| 
 | |
|         case 0x1241:
 | |
|         case 0x1246:
 | |
|           //
 | |
|           // User press "Submit current form and Exit now", request Browser to submit current form and exit
 | |
|           //
 | |
|           *ActionRequest = EFI_BROWSER_ACTION_REQUEST_FORM_SUBMIT_EXIT;
 | |
|           break;
 | |
| 
 | |
|         case 0x1242:
 | |
|           //
 | |
|           // User press "Discard current form now", request Browser to discard the uncommitted data.
 | |
|           //
 | |
|           *ActionRequest = EFI_BROWSER_ACTION_REQUEST_FORM_DISCARD;
 | |
|           break;
 | |
| 
 | |
|         case 0x1243:
 | |
|           //
 | |
|           // User press "Submit current form now", request Browser to save the uncommitted data.
 | |
|           //
 | |
|           *ActionRequest = EFI_BROWSER_ACTION_REQUEST_FORM_APPLY;
 | |
|           break;
 | |
| 
 | |
|         case 0x1244:
 | |
|         case 0x1245:
 | |
|           //
 | |
|           // User press "Discard current form and Exit now", request Browser to discard the uncommitted data and exit.
 | |
|           //
 | |
|           *ActionRequest = EFI_BROWSER_ACTION_REQUEST_FORM_DISCARD_EXIT;
 | |
|           break;
 | |
| 
 | |
|         case 0x1231:
 | |
|           //
 | |
|           // 1. Check to see whether system support keyword.
 | |
|           //
 | |
|           Status = PrivateData->HiiKeywordHandler->GetData (
 | |
|                                                      PrivateData->HiiKeywordHandler,
 | |
|                                                      L"NAMESPACE=x-UEFI-ns",
 | |
|                                                      L"KEYWORD=iSCSIBootEnable",
 | |
|                                                      &Progress,
 | |
|                                                      &ProgressErr,
 | |
|                                                      &Results
 | |
|                                                      );
 | |
|           if (EFI_ERROR (Status)) {
 | |
|             do {
 | |
|               CreatePopUp (
 | |
|                 EFI_LIGHTGRAY | EFI_BACKGROUND_BLUE,
 | |
|                 &Key,
 | |
|                 L"",
 | |
|                 L"This system not support this keyword!",
 | |
|                 L"Press ENTER to continue ...",
 | |
|                 L"",
 | |
|                 NULL
 | |
|                 );
 | |
|             } while (Key.UnicodeChar != CHAR_CARRIAGE_RETURN);
 | |
| 
 | |
|             Status = EFI_SUCCESS;
 | |
|             break;
 | |
|           }
 | |
| 
 | |
|           //
 | |
|           // 2. If system support this keyword, just try to change value.
 | |
|           //
 | |
| 
 | |
|           //
 | |
|           // Change value from '0' to '1' or from '1' to '0'
 | |
|           //
 | |
|           TmpStr = StrStr (Results, L"&VALUE=");
 | |
|           ASSERT (TmpStr != NULL);
 | |
|           TmpStr += StrLen (L"&VALUE=");
 | |
|           TmpStr++;
 | |
|           if (*TmpStr == L'0') {
 | |
|             *TmpStr = L'1';
 | |
|           } else {
 | |
|             *TmpStr = L'0';
 | |
|           }
 | |
| 
 | |
|           //
 | |
|           // 3. Call the keyword handler protocol to change the value.
 | |
|           //
 | |
|           Status = PrivateData->HiiKeywordHandler->SetData (
 | |
|                                                      PrivateData->HiiKeywordHandler,
 | |
|                                                      Results,
 | |
|                                                      &Progress,
 | |
|                                                      &ProgressErr
 | |
|                                                      );
 | |
|           if (EFI_ERROR (Status)) {
 | |
|             do {
 | |
|               CreatePopUp (
 | |
|                 EFI_LIGHTGRAY | EFI_BACKGROUND_BLUE,
 | |
|                 &Key,
 | |
|                 L"",
 | |
|                 L"Set keyword to the system failed!",
 | |
|                 L"Press ENTER to continue ...",
 | |
|                 L"",
 | |
|                 NULL
 | |
|                 );
 | |
|             } while (Key.UnicodeChar != CHAR_CARRIAGE_RETURN);
 | |
| 
 | |
|             Status = EFI_SUCCESS;
 | |
|             break;
 | |
|           }
 | |
| 
 | |
|           break;
 | |
| 
 | |
|         case 0x1330:
 | |
|           Status = mPrivateData->HiiPopup->CreatePopup (
 | |
|                                              mPrivateData->HiiPopup,
 | |
|                                              EfiHiiPopupStyleInfo,
 | |
|                                              EfiHiiPopupTypeYesNo,
 | |
|                                              mPrivateData->HiiHandle[0],
 | |
|                                              STRING_TOKEN (STR_POPUP_STRING),
 | |
|                                              &UserSelection
 | |
|                                              );
 | |
|           if (!EFI_ERROR (Status)) {
 | |
|             if (UserSelection == EfiHiiPopupSelectionYes) {
 | |
|               *ActionRequest = EFI_BROWSER_ACTION_REQUEST_EXIT;
 | |
|             }
 | |
|           }
 | |
| 
 | |
|           break;
 | |
| 
 | |
|         default:
 | |
|           break;
 | |
|       }
 | |
| 
 | |
|       break;
 | |
| 
 | |
|     case EFI_BROWSER_ACTION_SUBMITTED:
 | |
|     {
 | |
|       if (QuestionId == 0x1250) {
 | |
|         //
 | |
|         // Sample CallBack for EFI_BROWSER_ACTION_SUBMITTED action:
 | |
|         // Show up a pop-up to show SUBMITTED callback has been triggered.
 | |
|         //
 | |
|         do {
 | |
|           CreatePopUp (
 | |
|             EFI_LIGHTGRAY | EFI_BACKGROUND_BLUE,
 | |
|             &Key,
 | |
|             L"",
 | |
|             L"EfiVarstore value has been submitted!",
 | |
|             L"Press ESC or ENTER to continue ...",
 | |
|             L"",
 | |
|             NULL
 | |
|             );
 | |
|         } while ((Key.ScanCode != SCAN_ESC) && (Key.UnicodeChar != CHAR_CARRIAGE_RETURN));
 | |
|       }
 | |
| 
 | |
|       break;
 | |
|     }
 | |
| 
 | |
|     default:
 | |
|       Status = EFI_UNSUPPORTED;
 | |
|       break;
 | |
|   }
 | |
| 
 | |
|   return Status;
 | |
| }
 | |
| 
 | |
| /**
 | |
|   Main entry for this driver.
 | |
| 
 | |
|   @param ImageHandle     Image handle this driver.
 | |
|   @param SystemTable     Pointer to SystemTable.
 | |
| 
 | |
|   @retval EFI_SUCESS     This function always complete successfully.
 | |
| 
 | |
| **/
 | |
| EFI_STATUS
 | |
| EFIAPI
 | |
| DriverSampleInit (
 | |
|   IN EFI_HANDLE        ImageHandle,
 | |
|   IN EFI_SYSTEM_TABLE  *SystemTable
 | |
|   )
 | |
| {
 | |
|   EFI_STATUS                             Status;
 | |
|   EFI_HII_HANDLE                         HiiHandle[2];
 | |
|   EFI_SCREEN_DESCRIPTOR                  Screen;
 | |
|   EFI_HII_DATABASE_PROTOCOL              *HiiDatabase;
 | |
|   EFI_HII_STRING_PROTOCOL                *HiiString;
 | |
|   EFI_FORM_BROWSER2_PROTOCOL             *FormBrowser2;
 | |
|   EFI_HII_CONFIG_ROUTING_PROTOCOL        *HiiConfigRouting;
 | |
|   EFI_CONFIG_KEYWORD_HANDLER_PROTOCOL    *HiiKeywordHandler;
 | |
|   EFI_HII_POPUP_PROTOCOL                 *PopupHandler;
 | |
|   CHAR16                                 *NewString;
 | |
|   UINTN                                  BufferSize;
 | |
|   DRIVER_SAMPLE_CONFIGURATION            *Configuration;
 | |
|   BOOLEAN                                ActionFlag;
 | |
|   EFI_STRING                             ConfigRequestHdr;
 | |
|   EFI_STRING                             NameRequestHdr;
 | |
|   MY_EFI_VARSTORE_DATA                   *VarStoreConfig;
 | |
|   MY_EFI_BITS_VARSTORE_DATA              *BitsVarStoreConfig;
 | |
|   MY_EFI_UNION_DATA                      *UnionConfig;
 | |
|   EFI_INPUT_KEY                          HotKey;
 | |
|   EDKII_FORM_BROWSER_EXTENSION_PROTOCOL  *FormBrowserEx;
 | |
| 
 | |
|   //
 | |
|   // Initialize the local variables.
 | |
|   //
 | |
|   ConfigRequestHdr = NULL;
 | |
|   NewString        = NULL;
 | |
| 
 | |
|   //
 | |
|   // Initialize screen dimensions for SendForm().
 | |
|   // Remove 3 characters from top and bottom
 | |
|   //
 | |
|   ZeroMem (&Screen, sizeof (EFI_SCREEN_DESCRIPTOR));
 | |
|   gST->ConOut->QueryMode (gST->ConOut, gST->ConOut->Mode->Mode, &Screen.RightColumn, &Screen.BottomRow);
 | |
| 
 | |
|   Screen.TopRow    = 3;
 | |
|   Screen.BottomRow = Screen.BottomRow - 3;
 | |
| 
 | |
|   //
 | |
|   // Initialize driver private data
 | |
|   //
 | |
|   mPrivateData = AllocateZeroPool (sizeof (DRIVER_SAMPLE_PRIVATE_DATA));
 | |
|   if (mPrivateData == NULL) {
 | |
|     return EFI_OUT_OF_RESOURCES;
 | |
|   }
 | |
| 
 | |
|   mPrivateData->Signature = DRIVER_SAMPLE_PRIVATE_SIGNATURE;
 | |
| 
 | |
|   mPrivateData->ConfigAccess.ExtractConfig = ExtractConfig;
 | |
|   mPrivateData->ConfigAccess.RouteConfig   = RouteConfig;
 | |
|   mPrivateData->ConfigAccess.Callback      = DriverCallback;
 | |
| 
 | |
|   //
 | |
|   // Locate Hii Database protocol
 | |
|   //
 | |
|   Status = gBS->LocateProtocol (&gEfiHiiDatabaseProtocolGuid, NULL, (VOID **)&HiiDatabase);
 | |
|   if (EFI_ERROR (Status)) {
 | |
|     return Status;
 | |
|   }
 | |
| 
 | |
|   mPrivateData->HiiDatabase = HiiDatabase;
 | |
| 
 | |
|   //
 | |
|   // Locate HiiString protocol
 | |
|   //
 | |
|   Status = gBS->LocateProtocol (&gEfiHiiStringProtocolGuid, NULL, (VOID **)&HiiString);
 | |
|   if (EFI_ERROR (Status)) {
 | |
|     return Status;
 | |
|   }
 | |
| 
 | |
|   mPrivateData->HiiString = HiiString;
 | |
| 
 | |
|   //
 | |
|   // Locate Formbrowser2 protocol
 | |
|   //
 | |
|   Status = gBS->LocateProtocol (&gEfiFormBrowser2ProtocolGuid, NULL, (VOID **)&FormBrowser2);
 | |
|   if (EFI_ERROR (Status)) {
 | |
|     return Status;
 | |
|   }
 | |
| 
 | |
|   mPrivateData->FormBrowser2 = FormBrowser2;
 | |
| 
 | |
|   //
 | |
|   // Locate ConfigRouting protocol
 | |
|   //
 | |
|   Status = gBS->LocateProtocol (&gEfiHiiConfigRoutingProtocolGuid, NULL, (VOID **)&HiiConfigRouting);
 | |
|   if (EFI_ERROR (Status)) {
 | |
|     return Status;
 | |
|   }
 | |
| 
 | |
|   mPrivateData->HiiConfigRouting = HiiConfigRouting;
 | |
| 
 | |
|   //
 | |
|   // Locate keyword handler protocol
 | |
|   //
 | |
|   Status = gBS->LocateProtocol (&gEfiConfigKeywordHandlerProtocolGuid, NULL, (VOID **)&HiiKeywordHandler);
 | |
|   if (EFI_ERROR (Status)) {
 | |
|     return Status;
 | |
|   }
 | |
| 
 | |
|   mPrivateData->HiiKeywordHandler = HiiKeywordHandler;
 | |
| 
 | |
|   //
 | |
|   // Locate HiiPopup protocol
 | |
|   //
 | |
|   Status = gBS->LocateProtocol (&gEfiHiiPopupProtocolGuid, NULL, (VOID **)&PopupHandler);
 | |
|   if (EFI_ERROR (Status)) {
 | |
|     return Status;
 | |
|   }
 | |
| 
 | |
|   mPrivateData->HiiPopup = PopupHandler;
 | |
| 
 | |
|   Status = gBS->InstallMultipleProtocolInterfaces (
 | |
|                   &DriverHandle[0],
 | |
|                   &gEfiDevicePathProtocolGuid,
 | |
|                   &mHiiVendorDevicePath0,
 | |
|                   &gEfiHiiConfigAccessProtocolGuid,
 | |
|                   &mPrivateData->ConfigAccess,
 | |
|                   NULL
 | |
|                   );
 | |
|   ASSERT_EFI_ERROR (Status);
 | |
| 
 | |
|   mPrivateData->DriverHandle[0] = DriverHandle[0];
 | |
| 
 | |
|   //
 | |
|   // Publish our HII data
 | |
|   //
 | |
|   HiiHandle[0] = HiiAddPackages (
 | |
|                    &gDriverSampleFormSetGuid,
 | |
|                    DriverHandle[0],
 | |
|                    DriverSampleStrings,
 | |
|                    VfrBin,
 | |
|                    NULL
 | |
|                    );
 | |
|   if (HiiHandle[0] == NULL) {
 | |
|     return EFI_OUT_OF_RESOURCES;
 | |
|   }
 | |
| 
 | |
|   mPrivateData->HiiHandle[0] = HiiHandle[0];
 | |
| 
 | |
|   //
 | |
|   // Publish another Fromset
 | |
|   //
 | |
|   Status = gBS->InstallMultipleProtocolInterfaces (
 | |
|                   &DriverHandle[1],
 | |
|                   &gEfiDevicePathProtocolGuid,
 | |
|                   &mHiiVendorDevicePath1,
 | |
|                   &gEfiHiiConfigAccessProtocolGuid,
 | |
|                   &mPrivateData->ConfigAccess,
 | |
|                   NULL
 | |
|                   );
 | |
|   ASSERT_EFI_ERROR (Status);
 | |
| 
 | |
|   mPrivateData->DriverHandle[1] = DriverHandle[1];
 | |
| 
 | |
|   HiiHandle[1] = HiiAddPackages (
 | |
|                    &gDriverSampleInventoryGuid,
 | |
|                    DriverHandle[1],
 | |
|                    DriverSampleStrings,
 | |
|                    InventoryBin,
 | |
|                    NULL
 | |
|                    );
 | |
|   if (HiiHandle[1] == NULL) {
 | |
|     DriverSampleUnload (ImageHandle);
 | |
|     return EFI_OUT_OF_RESOURCES;
 | |
|   }
 | |
| 
 | |
|   mPrivateData->HiiHandle[1] = HiiHandle[1];
 | |
| 
 | |
|   //
 | |
|   // Update the device path string.
 | |
|   //
 | |
|   NewString = ConvertDevicePathToText ((EFI_DEVICE_PATH_PROTOCOL *)&mHiiVendorDevicePath0, FALSE, FALSE);
 | |
|   if (HiiSetString (HiiHandle[0], STRING_TOKEN (STR_DEVICE_PATH), NewString, NULL) == 0) {
 | |
|     DriverSampleUnload (ImageHandle);
 | |
|     return EFI_OUT_OF_RESOURCES;
 | |
|   }
 | |
| 
 | |
|   if (NewString != NULL) {
 | |
|     FreePool (NewString);
 | |
|   }
 | |
| 
 | |
|   //
 | |
|   // Very simple example of how one would update a string that is already
 | |
|   // in the HII database
 | |
|   //
 | |
|   NewString = L"700 Mhz";
 | |
| 
 | |
|   if (HiiSetString (HiiHandle[0], STRING_TOKEN (STR_CPU_STRING2), NewString, NULL) == 0) {
 | |
|     DriverSampleUnload (ImageHandle);
 | |
|     return EFI_OUT_OF_RESOURCES;
 | |
|   }
 | |
| 
 | |
|   HiiSetString (HiiHandle[0], 0, NewString, NULL);
 | |
| 
 | |
|   //
 | |
|   // Initialize Name/Value name String ID
 | |
|   //
 | |
|   mPrivateData->NameStringId[0] = STR_NAME_VALUE_VAR_NAME0;
 | |
|   mPrivateData->NameStringId[1] = STR_NAME_VALUE_VAR_NAME1;
 | |
|   mPrivateData->NameStringId[2] = STR_NAME_VALUE_VAR_NAME2;
 | |
| 
 | |
|   //
 | |
|   // Initialize configuration data
 | |
|   //
 | |
|   Configuration = &mPrivateData->Configuration;
 | |
|   ZeroMem (Configuration, sizeof (DRIVER_SAMPLE_CONFIGURATION));
 | |
| 
 | |
|   //
 | |
|   // Try to read NV config EFI variable first
 | |
|   //
 | |
|   ConfigRequestHdr = HiiConstructConfigHdr (&gDriverSampleFormSetGuid, VariableName, DriverHandle[0]);
 | |
|   ASSERT (ConfigRequestHdr != NULL);
 | |
| 
 | |
|   NameRequestHdr = HiiConstructConfigHdr (&gDriverSampleFormSetGuid, NULL, DriverHandle[0]);
 | |
|   ASSERT (NameRequestHdr != NULL);
 | |
| 
 | |
|   BufferSize = sizeof (DRIVER_SAMPLE_CONFIGURATION);
 | |
|   Status     = gRT->GetVariable (VariableName, &gDriverSampleFormSetGuid, NULL, &BufferSize, Configuration);
 | |
|   if (EFI_ERROR (Status)) {
 | |
|     //
 | |
|     // Store zero data Buffer Storage to EFI variable
 | |
|     //
 | |
|     Status = gRT->SetVariable (
 | |
|                     VariableName,
 | |
|                     &gDriverSampleFormSetGuid,
 | |
|                     EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS,
 | |
|                     sizeof (DRIVER_SAMPLE_CONFIGURATION),
 | |
|                     Configuration
 | |
|                     );
 | |
|     if (EFI_ERROR (Status)) {
 | |
|       DriverSampleUnload (ImageHandle);
 | |
|       return Status;
 | |
|     }
 | |
| 
 | |
|     //
 | |
|     // EFI variable for NV config doesn't exit, we should build this variable
 | |
|     // based on default values stored in IFR
 | |
|     //
 | |
|     ActionFlag = HiiSetToDefaults (NameRequestHdr, EFI_HII_DEFAULT_CLASS_STANDARD);
 | |
|     if (!ActionFlag) {
 | |
|       DriverSampleUnload (ImageHandle);
 | |
|       return EFI_INVALID_PARAMETER;
 | |
|     }
 | |
| 
 | |
|     ActionFlag = HiiSetToDefaults (ConfigRequestHdr, EFI_HII_DEFAULT_CLASS_STANDARD);
 | |
|     if (!ActionFlag) {
 | |
|       DriverSampleUnload (ImageHandle);
 | |
|       return EFI_INVALID_PARAMETER;
 | |
|     }
 | |
|   } else {
 | |
|     //
 | |
|     // EFI variable does exist and Validate Current Setting
 | |
|     //
 | |
|     ActionFlag = HiiValidateSettings (NameRequestHdr);
 | |
|     if (!ActionFlag) {
 | |
|       DriverSampleUnload (ImageHandle);
 | |
|       return EFI_INVALID_PARAMETER;
 | |
|     }
 | |
| 
 | |
|     ActionFlag = HiiValidateSettings (ConfigRequestHdr);
 | |
|     if (!ActionFlag) {
 | |
|       DriverSampleUnload (ImageHandle);
 | |
|       return EFI_INVALID_PARAMETER;
 | |
|     }
 | |
|   }
 | |
| 
 | |
|   FreePool (ConfigRequestHdr);
 | |
| 
 | |
|   //
 | |
|   // Initialize efi varstore configuration data
 | |
|   //
 | |
|   VarStoreConfig = &mPrivateData->VarStoreConfig;
 | |
|   ZeroMem (VarStoreConfig, sizeof (MY_EFI_VARSTORE_DATA));
 | |
| 
 | |
|   ConfigRequestHdr = HiiConstructConfigHdr (&gDriverSampleFormSetGuid, MyEfiVar, DriverHandle[0]);
 | |
|   ASSERT (ConfigRequestHdr != NULL);
 | |
| 
 | |
|   BufferSize = sizeof (MY_EFI_VARSTORE_DATA);
 | |
|   Status     = gRT->GetVariable (MyEfiVar, &gDriverSampleFormSetGuid, NULL, &BufferSize, VarStoreConfig);
 | |
|   if (EFI_ERROR (Status)) {
 | |
|     //
 | |
|     // Store zero data to EFI variable Storage.
 | |
|     //
 | |
|     Status = gRT->SetVariable (
 | |
|                     MyEfiVar,
 | |
|                     &gDriverSampleFormSetGuid,
 | |
|                     EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS,
 | |
|                     sizeof (MY_EFI_VARSTORE_DATA),
 | |
|                     VarStoreConfig
 | |
|                     );
 | |
|     if (EFI_ERROR (Status)) {
 | |
|       DriverSampleUnload (ImageHandle);
 | |
|       return Status;
 | |
|     }
 | |
| 
 | |
|     //
 | |
|     // EFI variable for NV config doesn't exit, we should build this variable
 | |
|     // based on default values stored in IFR
 | |
|     //
 | |
|     ActionFlag = HiiSetToDefaults (ConfigRequestHdr, EFI_HII_DEFAULT_CLASS_STANDARD);
 | |
|     if (!ActionFlag) {
 | |
|       DriverSampleUnload (ImageHandle);
 | |
|       return EFI_INVALID_PARAMETER;
 | |
|     }
 | |
|   } else {
 | |
|     //
 | |
|     // EFI variable does exist and Validate Current Setting
 | |
|     //
 | |
|     ActionFlag = HiiValidateSettings (ConfigRequestHdr);
 | |
|     if (!ActionFlag) {
 | |
|       DriverSampleUnload (ImageHandle);
 | |
|       return EFI_INVALID_PARAMETER;
 | |
|     }
 | |
|   }
 | |
| 
 | |
|   FreePool (ConfigRequestHdr);
 | |
| 
 | |
|   //
 | |
|   // Initialize Bits efi varstore configuration data
 | |
|   //
 | |
|   BitsVarStoreConfig = &mPrivateData->BitsVarStoreConfig;
 | |
|   ZeroMem (BitsVarStoreConfig, sizeof (MY_EFI_BITS_VARSTORE_DATA));
 | |
| 
 | |
|   ConfigRequestHdr = HiiConstructConfigHdr (&gDriverSampleFormSetGuid, MyEfiBitVar, DriverHandle[0]);
 | |
|   ASSERT (ConfigRequestHdr != NULL);
 | |
| 
 | |
|   BufferSize = sizeof (MY_EFI_BITS_VARSTORE_DATA);
 | |
|   Status     = gRT->GetVariable (MyEfiBitVar, &gDriverSampleFormSetGuid, NULL, &BufferSize, BitsVarStoreConfig);
 | |
|   if (EFI_ERROR (Status)) {
 | |
|     //
 | |
|     // Store zero data to EFI variable Storage.
 | |
|     //
 | |
|     Status = gRT->SetVariable (
 | |
|                     MyEfiBitVar,
 | |
|                     &gDriverSampleFormSetGuid,
 | |
|                     EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS,
 | |
|                     sizeof (MY_EFI_BITS_VARSTORE_DATA),
 | |
|                     BitsVarStoreConfig
 | |
|                     );
 | |
|     if (EFI_ERROR (Status)) {
 | |
|       DriverSampleUnload (ImageHandle);
 | |
|       return Status;
 | |
|     }
 | |
| 
 | |
|     //
 | |
|     // EFI variable for NV config doesn't exit, we should build this variable
 | |
|     // based on default values stored in IFR
 | |
|     //
 | |
|     ActionFlag = HiiSetToDefaults (ConfigRequestHdr, EFI_HII_DEFAULT_CLASS_STANDARD);
 | |
|     if (!ActionFlag) {
 | |
|       DriverSampleUnload (ImageHandle);
 | |
|       return EFI_INVALID_PARAMETER;
 | |
|     }
 | |
|   } else {
 | |
|     //
 | |
|     // EFI variable does exist and Validate Current Setting
 | |
|     //
 | |
|     ActionFlag = HiiValidateSettings (ConfigRequestHdr);
 | |
|     if (!ActionFlag) {
 | |
|       DriverSampleUnload (ImageHandle);
 | |
|       return EFI_INVALID_PARAMETER;
 | |
|     }
 | |
|   }
 | |
| 
 | |
|   FreePool (ConfigRequestHdr);
 | |
| 
 | |
|   //
 | |
|   // Initialize Union efi varstore configuration data
 | |
|   //
 | |
|   UnionConfig = &mPrivateData->UnionConfig;
 | |
|   ZeroMem (UnionConfig, sizeof (MY_EFI_UNION_DATA));
 | |
| 
 | |
|   ConfigRequestHdr = HiiConstructConfigHdr (&gDriverSampleFormSetGuid, MyEfiUnionVar, DriverHandle[0]);
 | |
|   ASSERT (ConfigRequestHdr != NULL);
 | |
| 
 | |
|   BufferSize = sizeof (MY_EFI_UNION_DATA);
 | |
|   Status     = gRT->GetVariable (MyEfiUnionVar, &gDriverSampleFormSetGuid, NULL, &BufferSize, UnionConfig);
 | |
|   if (EFI_ERROR (Status)) {
 | |
|     //
 | |
|     // Store zero data to EFI variable Storage.
 | |
|     //
 | |
|     Status = gRT->SetVariable (
 | |
|                     MyEfiUnionVar,
 | |
|                     &gDriverSampleFormSetGuid,
 | |
|                     EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS,
 | |
|                     sizeof (MY_EFI_UNION_DATA),
 | |
|                     UnionConfig
 | |
|                     );
 | |
|     if (EFI_ERROR (Status)) {
 | |
|       DriverSampleUnload (ImageHandle);
 | |
|       return Status;
 | |
|     }
 | |
| 
 | |
|     //
 | |
|     // EFI variable for NV config doesn't exit, we should build this variable
 | |
|     // based on default values stored in IFR
 | |
|     //
 | |
|     ActionFlag = HiiSetToDefaults (ConfigRequestHdr, EFI_HII_DEFAULT_CLASS_STANDARD);
 | |
|     if (!ActionFlag) {
 | |
|       DriverSampleUnload (ImageHandle);
 | |
|       return EFI_INVALID_PARAMETER;
 | |
|     }
 | |
|   } else {
 | |
|     //
 | |
|     // EFI variable does exist and Validate Current Setting
 | |
|     //
 | |
|     ActionFlag = HiiValidateSettings (ConfigRequestHdr);
 | |
|     if (!ActionFlag) {
 | |
|       DriverSampleUnload (ImageHandle);
 | |
|       return EFI_INVALID_PARAMETER;
 | |
|     }
 | |
|   }
 | |
| 
 | |
|   FreePool (ConfigRequestHdr);
 | |
| 
 | |
|   Status = gBS->CreateEventEx (
 | |
|                   EVT_NOTIFY_SIGNAL,
 | |
|                   TPL_NOTIFY,
 | |
|                   EfiEventEmptyFunction,
 | |
|                   NULL,
 | |
|                   &gEfiIfrRefreshIdOpGuid,
 | |
|                   &mEvent
 | |
|                   );
 | |
|   ASSERT_EFI_ERROR (Status);
 | |
| 
 | |
|   //
 | |
|   // Example of how to use BrowserEx protocol to register HotKey.
 | |
|   //
 | |
|   Status = gBS->LocateProtocol (&gEdkiiFormBrowserExProtocolGuid, NULL, (VOID **)&FormBrowserEx);
 | |
|   if (!EFI_ERROR (Status)) {
 | |
|     //
 | |
|     // First unregister the default hot key F9 and F10.
 | |
|     //
 | |
|     HotKey.UnicodeChar = CHAR_NULL;
 | |
|     HotKey.ScanCode    = SCAN_F9;
 | |
|     FormBrowserEx->RegisterHotKey (&HotKey, 0, 0, NULL);
 | |
|     HotKey.ScanCode = SCAN_F10;
 | |
|     FormBrowserEx->RegisterHotKey (&HotKey, 0, 0, NULL);
 | |
| 
 | |
|     //
 | |
|     // Register the default HotKey F9 and F10 again.
 | |
|     //
 | |
|     HotKey.ScanCode = SCAN_F10;
 | |
|     NewString       = HiiGetString (mPrivateData->HiiHandle[0], STRING_TOKEN (FUNCTION_TEN_STRING), NULL);
 | |
|     ASSERT (NewString != NULL);
 | |
|     FormBrowserEx->RegisterHotKey (&HotKey, BROWSER_ACTION_SUBMIT, 0, NewString);
 | |
|     HotKey.ScanCode = SCAN_F9;
 | |
|     NewString       = HiiGetString (mPrivateData->HiiHandle[0], STRING_TOKEN (FUNCTION_NINE_STRING), NULL);
 | |
|     ASSERT (NewString != NULL);
 | |
|     FormBrowserEx->RegisterHotKey (&HotKey, BROWSER_ACTION_DEFAULT, EFI_HII_DEFAULT_CLASS_STANDARD, NewString);
 | |
|   }
 | |
| 
 | |
|   //
 | |
|   // In default, this driver is built into Flash device image,
 | |
|   // the following code doesn't run.
 | |
|   //
 | |
| 
 | |
|   //
 | |
|   // Example of how to display only the item we sent to HII
 | |
|   // When this driver is not built into Flash device image,
 | |
|   // it need to call SendForm to show front page by itself.
 | |
|   //
 | |
|   if (DISPLAY_ONLY_MY_ITEM <= 1) {
 | |
|     //
 | |
|     // Have the browser pull out our copy of the data, and only display our data
 | |
|     //
 | |
|     Status = FormBrowser2->SendForm (
 | |
|                              FormBrowser2,
 | |
|                              &(HiiHandle[DISPLAY_ONLY_MY_ITEM]),
 | |
|                              1,
 | |
|                              NULL,
 | |
|                              0,
 | |
|                              NULL,
 | |
|                              NULL
 | |
|                              );
 | |
| 
 | |
|     HiiRemovePackages (HiiHandle[0]);
 | |
| 
 | |
|     HiiRemovePackages (HiiHandle[1]);
 | |
|   }
 | |
| 
 | |
|   return EFI_SUCCESS;
 | |
| }
 | |
| 
 | |
| /**
 | |
|   Unloads the application and its installed protocol.
 | |
| 
 | |
|   @param[in]  ImageHandle       Handle that identifies the image to be unloaded.
 | |
| 
 | |
|   @retval EFI_SUCCESS           The image has been unloaded.
 | |
| **/
 | |
| EFI_STATUS
 | |
| EFIAPI
 | |
| DriverSampleUnload (
 | |
|   IN EFI_HANDLE  ImageHandle
 | |
|   )
 | |
| {
 | |
|   UINTN  Index;
 | |
| 
 | |
|   ASSERT (mPrivateData != NULL);
 | |
| 
 | |
|   if (DriverHandle[0] != NULL) {
 | |
|     gBS->UninstallMultipleProtocolInterfaces (
 | |
|            DriverHandle[0],
 | |
|            &gEfiDevicePathProtocolGuid,
 | |
|            &mHiiVendorDevicePath0,
 | |
|            &gEfiHiiConfigAccessProtocolGuid,
 | |
|            &mPrivateData->ConfigAccess,
 | |
|            NULL
 | |
|            );
 | |
|     DriverHandle[0] = NULL;
 | |
|   }
 | |
| 
 | |
|   if (DriverHandle[1] != NULL) {
 | |
|     gBS->UninstallMultipleProtocolInterfaces (
 | |
|            DriverHandle[1],
 | |
|            &gEfiDevicePathProtocolGuid,
 | |
|            &mHiiVendorDevicePath1,
 | |
|            &gEfiHiiConfigAccessProtocolGuid,
 | |
|            &mPrivateData->ConfigAccess,
 | |
|            NULL
 | |
|            );
 | |
|     DriverHandle[1] = NULL;
 | |
|   }
 | |
| 
 | |
|   if (mPrivateData->HiiHandle[0] != NULL) {
 | |
|     HiiRemovePackages (mPrivateData->HiiHandle[0]);
 | |
|   }
 | |
| 
 | |
|   if (mPrivateData->HiiHandle[1] != NULL) {
 | |
|     HiiRemovePackages (mPrivateData->HiiHandle[1]);
 | |
|   }
 | |
| 
 | |
|   for (Index = 0; Index < NAME_VALUE_NAME_NUMBER; Index++) {
 | |
|     if (mPrivateData->NameValueName[Index] != NULL) {
 | |
|       FreePool (mPrivateData->NameValueName[Index]);
 | |
|     }
 | |
|   }
 | |
| 
 | |
|   FreePool (mPrivateData);
 | |
|   mPrivateData = NULL;
 | |
| 
 | |
|   gBS->CloseEvent (mEvent);
 | |
| 
 | |
|   return EFI_SUCCESS;
 | |
| }
 |