MdeModulePkg/Universal/BdsDxe/BootMaint/FileExplorer.c

   1 /** @file
   2   File explorer related functions.
   3
   4 Copyright (c) 2004 - 2008, Intel Corporation. <BR>
   5 All rights reserved. This program and the accompanying materials
   6 are licensed and made available under the terms and conditions of the BSD License
   7 which accompanies this distribution.  The full text of the license may be found at
   8 http://opensource.org/licenses/bsd-license.php
   9
  10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12
  13 **/
  14
  15 #include "BootMaint.h"
  16
  17 /**
  18   Update the File Explore page.
  19
  20
  21   @param CallbackData    EDES_TODO: Add parameter description
  22   @param MenuOption      Pointer to menu options to display.
  23
  24            EDES_TODO: Incomplete Descriptions  None.
  25
  26 **/
  27 VOID
  28 UpdateFileExplorePage (
  29   IN BMM_CALLBACK_DATA            *CallbackData,
  30   BM_MENU_OPTION                  *MenuOption
  31   )
  32 {
  33   UINTN           Index;
  34   BM_MENU_ENTRY   *NewMenuEntry;
  35   BM_FILE_CONTEXT *NewFileContext;
  36   EFI_FORM_ID     FormId;
  37
  38   NewMenuEntry    = NULL;
  39   NewFileContext  = NULL;
  40   FormId          = 0;
  41
  42   RefreshUpdateData ();
  43
  44   for (Index = 0; Index < MenuOption->MenuNumber; Index++) {
  45     NewMenuEntry    = BOpt_GetMenuEntry (MenuOption, Index);
  46     NewFileContext  = (BM_FILE_CONTEXT *) NewMenuEntry->VariableContext;
  47
  48     if (NewFileContext->IsBootLegacy) {
  49       continue;
  50     }
  51
  52     if ((NewFileContext->IsDir) || (BOOT_FROM_FILE_STATE == CallbackData->FeCurrentState)) {
  53       //
  54       // Create Text opcode for directory, also create Text opcode for file in BOOT_FROM_FILE_STATE.
  55       //
  56       CreateActionOpCode (
  57         (UINT16) (FILE_OPTION_OFFSET + Index),
  58         NewMenuEntry->DisplayStringToken,
  59         STRING_TOKEN (STR_NULL_STRING),
  60         EFI_IFR_FLAG_CALLBACK,
  61         0,
  62         &gUpdateData
  63         );
  64     } else {
  65       //
  66       // Create Goto opcode for file in ADD_BOOT_OPTION_STATE or ADD_DRIVER_OPTION_STATE.
  67       //
  68       if (ADD_BOOT_OPTION_STATE == CallbackData->FeCurrentState) {
  69         FormId = FORM_BOOT_ADD_DESCRIPTION_ID;
  70       } else if (ADD_DRIVER_OPTION_STATE == CallbackData->FeCurrentState) {
  71         FormId = FORM_DRIVER_ADD_FILE_DESCRIPTION_ID;
  72       }
  73
  74       CreateGotoOpCode (
  75         FormId,
  76         NewMenuEntry->DisplayStringToken,
  77         STRING_TOKEN (STR_NULL_STRING),
  78         EFI_IFR_FLAG_CALLBACK,
  79         (UINT16) (FILE_OPTION_OFFSET + Index),
  80         &gUpdateData
  81         );
  82     }
  83   }
  84
  85   IfrLibUpdateForm (
  86     CallbackData->FeHiiHandle,
  87     &mFileExplorerGuid,
  88     FORM_FILE_EXPLORER_ID,
  89     FORM_FILE_EXPLORER_ID,
  90     FALSE,
  91     &gUpdateData
  92     );
  93 }
  94
  95 /**
  96   Update the file explower page with the refershed file system.
  97
  98
  99   @param CallbackData    BMM context data
 100   @param KeyValue        Key value to identify the type of data to expect.
 101
 102   @retval  TRUE           Inform the caller to create a callback packet to exit file explorer.
 103   @retval  FALSE          Indicate that there is no need to exit file explorer.
 104
 105 **/
 106 BOOLEAN
 107 UpdateFileExplorer (
 108   IN BMM_CALLBACK_DATA            *CallbackData,
 109   IN UINT16                       KeyValue
 110   )
 111 {
 112   UINT16          FileOptionMask;
 113   BM_MENU_ENTRY   *NewMenuEntry;
 114   BM_FILE_CONTEXT *NewFileContext;
 115   EFI_FORM_ID     FormId;
 116   BOOLEAN         ExitFileExplorer;
 117   EFI_STATUS      Status;
 118
 119   NewMenuEntry      = NULL;
 120   NewFileContext    = NULL;
 121   ExitFileExplorer  = FALSE;
 122
 123   FileOptionMask    = (UINT16) (FILE_OPTION_MASK & KeyValue);
 124
 125   if (UNKNOWN_CONTEXT == CallbackData->FeDisplayContext) {
 126     //
 127     // First in, display file system.
 128     //
 129     BOpt_FreeMenu (&FsOptionMenu);
 130     BOpt_FindFileSystem (CallbackData);
 131     CreateMenuStringToken (CallbackData, CallbackData->FeHiiHandle, &FsOptionMenu);
 132
 133     UpdateFileExplorePage (CallbackData, &FsOptionMenu);
 134
 135     CallbackData->FeDisplayContext = FILE_SYSTEM;
 136   } else {
 137     if (FILE_SYSTEM == CallbackData->FeDisplayContext) {
 138       NewMenuEntry = BOpt_GetMenuEntry (&FsOptionMenu, FileOptionMask);
 139     } else if (DIRECTORY == CallbackData->FeDisplayContext) {
 140       NewMenuEntry = BOpt_GetMenuEntry (&DirectoryMenu, FileOptionMask);
 141     }
 142
 143     CallbackData->FeDisplayContext  = DIRECTORY;
 144
 145     NewFileContext                  = (BM_FILE_CONTEXT *) NewMenuEntry->VariableContext;
 146
 147     if (NewFileContext->IsDir ) {
 148       RemoveEntryList (&NewMenuEntry->Link);
 149       BOpt_FreeMenu (&DirectoryMenu);
 150       Status = BOpt_FindFiles (CallbackData, NewMenuEntry);
 151        if (EFI_ERROR (Status)) {
 152          ExitFileExplorer = TRUE;
 153          goto exit;
 154        }
 155       CreateMenuStringToken (CallbackData, CallbackData->FeHiiHandle, &DirectoryMenu);
 156       BOpt_DestroyMenuEntry (NewMenuEntry);
 157
 158       UpdateFileExplorePage (CallbackData, &DirectoryMenu);
 159
 160     } else {
 161       switch (CallbackData->FeCurrentState) {
 162       case BOOT_FROM_FILE_STATE:
 163         //
 164         // Here boot from file
 165         //
 166         BootThisFile (NewFileContext);
 167         ExitFileExplorer = TRUE;
 168         break;
 169
 170       case ADD_BOOT_OPTION_STATE:
 171       case ADD_DRIVER_OPTION_STATE:
 172         if (ADD_BOOT_OPTION_STATE == CallbackData->FeCurrentState) {
 173           FormId = FORM_BOOT_ADD_DESCRIPTION_ID;
 174         } else {
 175           FormId = FORM_DRIVER_ADD_FILE_DESCRIPTION_ID;
 176         }
 177
 178         CallbackData->MenuEntry = NewMenuEntry;
 179         CallbackData->LoadContext->FilePathList = ((BM_FILE_CONTEXT *) (CallbackData->MenuEntry->VariableContext))->DevicePath;
 180
 181         //
 182         // Create Subtitle op-code for the display string of the option.
 183         //
 184         RefreshUpdateData ();
 185
 186         CreateSubTitleOpCode (
 187           NewMenuEntry->DisplayStringToken,
 188           0,
 189           0,
 190           0,
 191           &gUpdateData
 192           );
 193
 194         IfrLibUpdateForm (
 195           CallbackData->FeHiiHandle,
 196           &mFileExplorerGuid,
 197           FormId,
 198           FormId,
 199           FALSE,
 200           &gUpdateData
 201           );
 202         break;
 203
 204       default:
 205         break;
 206       }
 207     }
 208   }
 209   exit:
 210   return ExitFileExplorer;
 211 }
 212
 213 /**
 214   This function processes the results of changes in configuration.
 215
 216
 217   @param This            Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.
 218   @param Action          Specifies the type of action taken by the browser.
 219   @param QuestionId      A unique value which is sent to the original exporting driver
 220                          so that it can identify the type of data to expect.
 221   @param Type            The type of value for the question.
 222   @param Value           A pointer to the data being sent to the original exporting driver.
 223   @param ActionRequest   On return, points to the action requested by the callback function.
 224
 225   @retval  EFI_SUCCESS           The callback successfully handled the action.
 226   @retval  EFI_OUT_OF_RESOURCES  Not enough storage is available to hold the variable and its data.
 227   @retval  EFI_DEVICE_ERROR      The variable could not be saved.
 228   @retval  EFI_UNSUPPORTED       The specified Action is not supported by the callback.
 229
 230 **/
 231 EFI_STATUS
 232 EFIAPI
 233 FileExplorerCallback (
 234   IN  CONST EFI_HII_CONFIG_ACCESS_PROTOCOL   *This,
 235   IN  EFI_BROWSER_ACTION                     Action,
 236   IN  EFI_QUESTION_ID                        QuestionId,
 237   IN  UINT8                                  Type,
 238   IN  EFI_IFR_TYPE_VALUE                     *Value,
 239   OUT EFI_BROWSER_ACTION_REQUEST             *ActionRequest
 240   )
 241 {
 242   BMM_CALLBACK_DATA     *Private;
 243   FILE_EXPLORER_NV_DATA *NvRamMap;
 244   EFI_STATUS            Status;
 245   UINTN                 BufferSize;
 246
 247   if ((Value == NULL) || (ActionRequest == NULL)) {
 248     return EFI_INVALID_PARAMETER;
 249   }
 250
 251   Status         = EFI_SUCCESS;
 252   Private        = FE_CALLBACK_DATA_FROM_THIS (This);
 253   *ActionRequest = EFI_BROWSER_ACTION_REQUEST_NONE;
 254
 255   //
 256   // Retrive uncommitted data from Form Browser
 257   //
 258   NvRamMap = &Private->FeFakeNvData;
 259   BufferSize = sizeof (FILE_EXPLORER_NV_DATA);
 260   Status = GetBrowserData (NULL, NULL, &BufferSize, (UINT8 *) NvRamMap);
 261   if (EFI_ERROR (Status)) {
 262     return Status;
 263   }
 264
 265   if (QuestionId == KEY_VALUE_SAVE_AND_EXIT_BOOT || QuestionId == KEY_VALUE_SAVE_AND_EXIT_DRIVER) {
 266     //
 267     // Apply changes and exit formset
 268     //
 269     if (ADD_BOOT_OPTION_STATE == Private->FeCurrentState) {
 270       Status = Var_UpdateBootOption (Private, NvRamMap);
 271       if (EFI_ERROR (Status)) {
 272         return Status;
 273       }
 274
 275       BOpt_GetBootOptions (Private);
 276       CreateMenuStringToken (Private, Private->FeHiiHandle, &BootOptionMenu);
 277     } else if (ADD_DRIVER_OPTION_STATE == Private->FeCurrentState) {
 278       Status = Var_UpdateDriverOption (
 279                 Private,
 280                 Private->FeHiiHandle,
 281                 NvRamMap->DescriptionData,
 282                 NvRamMap->OptionalData,
 283                 NvRamMap->ForceReconnect
 284                 );
 285       if (EFI_ERROR (Status)) {
 286         return Status;
 287       }
 288
 289       BOpt_GetDriverOptions (Private);
 290       CreateMenuStringToken (Private, Private->FeHiiHandle, &DriverOptionMenu);
 291     }
 292
 293     *ActionRequest = EFI_BROWSER_ACTION_REQUEST_EXIT;
 294   } else if (QuestionId == KEY_VALUE_NO_SAVE_AND_EXIT_BOOT || QuestionId == KEY_VALUE_NO_SAVE_AND_EXIT_DRIVER) {
 295     //
 296     // Discard changes and exit formset
 297     //
 298     NvRamMap->OptionalData[0]     = 0x0000;
 299     NvRamMap->DescriptionData[0]  = 0x0000;
 300     *ActionRequest = EFI_BROWSER_ACTION_REQUEST_EXIT;
 301   } else if (QuestionId < FILE_OPTION_OFFSET) {
 302     //
 303     // Exit File Explorer formset
 304     //
 305     *ActionRequest = EFI_BROWSER_ACTION_REQUEST_EXIT;
 306   } else {
 307     if (UpdateFileExplorer (Private, QuestionId)) {
 308       *ActionRequest = EFI_BROWSER_ACTION_REQUEST_EXIT;
 309     }
 310   }
 311
 312   return Status;
 313 }