]> git.proxmox.com Git - mirror_edk2.git/blobdiff - OvmfPkg/PlatformDxe/Platform.c
OvmfPkg/PlatformDxe: Silence warning seen with GCC48 IA32
[mirror_edk2.git] / OvmfPkg / PlatformDxe / Platform.c
index 16066a0f0e238b161d6bbe8a27b049c1c284b57b..f0adb0ea935853d0fd5bc28e1c9bd1dc7ec79407 100644 (file)
@@ -3,7 +3,7 @@
   them via HII.\r
 \r
   Copyright (C) 2014, Red Hat, Inc.\r
-  Copyright (c) 2009 - 2011, Intel Corporation. All rights reserved.<BR>\r
+  Copyright (c) 2009 - 2014, Intel Corporation. All rights reserved.<BR>\r
 \r
   This program and the accompanying materials are licensed and made available\r
   under the terms and conditions of the BSD License which accompanies this\r
   WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
 **/\r
 \r
+#include <Library/BaseLib.h>\r
 #include <Library/DebugLib.h>\r
 #include <Library/DevicePathLib.h>\r
 #include <Library/HiiLib.h>\r
 #include <Library/UefiBootServicesTableLib.h>\r
+#include <Library/UefiHiiServicesLib.h>\r
 #include <Protocol/DevicePath.h>\r
 #include <Protocol/HiiConfigAccess.h>\r
+#include <Guid/MdeModuleHii.h>\r
+#include <Guid/OvmfPlatformConfig.h>\r
 \r
+#include "Platform.h"\r
 #include "PlatformConfig.h"\r
 \r
 //\r
@@ -94,6 +99,26 @@ extern UINT8 PlatformDxeStrings[];
 extern UINT8 PlatformFormsBin[];\r
 \r
 \r
+/**\r
+  This function is called by the HII machinery when it fetches the form state.\r
+\r
+  See the precise documentation in the UEFI spec.\r
+\r
+  @param[in]  This      The Config Access Protocol instance.\r
+\r
+  @param[in]  Request   A <ConfigRequest> format UCS-2 string describing the\r
+                        query.\r
+\r
+  @param[out] Progress  A pointer into Request on output, identifying the query\r
+                        element where processing failed.\r
+\r
+  @param[out] Results   A <MultiConfigAltResp> format UCS-2 string that has\r
+                        all values filled in for the names in the Request\r
+                        string.\r
+\r
+  @return  Status codes from gHiiConfigRouting->BlockToConfig().\r
+\r
+**/\r
 STATIC\r
 EFI_STATUS\r
 EFIAPI\r
@@ -104,7 +129,24 @@ ExtractConfig (
   OUT       EFI_STRING                      *Results\r
 )\r
 {\r
-  return EFI_SUCCESS;\r
+  MAIN_FORM_STATE MainFormState;\r
+  EFI_STATUS      Status;\r
+\r
+  DEBUG ((EFI_D_VERBOSE, "%a: Request=\"%s\"\n", __FUNCTION__, Request));\r
+\r
+  StrnCpy ((CHAR16 *) MainFormState.CurrentPreferredResolution,\r
+           L"Unset", MAXSIZE_RES_CUR);\r
+  MainFormState.NextPreferredResolution = 0;\r
+  Status = gHiiConfigRouting->BlockToConfig (gHiiConfigRouting, Request,\r
+                                (VOID *) &MainFormState, sizeof MainFormState,\r
+                                Results, Progress);\r
+  if (EFI_ERROR (Status)) {\r
+    DEBUG ((EFI_D_ERROR, "%a: BlockToConfig(): %r, Progress=\"%s\"\n",\r
+      __FUNCTION__, Status, (Status == EFI_DEVICE_ERROR) ? NULL : *Progress));\r
+  } else {\r
+    DEBUG ((EFI_D_VERBOSE, "%a: Results=\"%s\"\n", __FUNCTION__, *Results));\r
+  }\r
+  return Status;\r
 }\r
 \r
 \r
@@ -137,6 +179,170 @@ Callback (
 }\r
 \r
 \r
+/**\r
+  Create a set of "one-of-many" (ie. "drop down list") option IFR opcodes,\r
+  based on available GOP resolutions, to be placed under a "one-of-many" (ie.\r
+  "drop down list") opcode.\r
+\r
+  @param[in]  PackageList   The package list with the formset and form for\r
+                            which the drop down options are produced. Option\r
+                            names are added as new strings to PackageList.\r
+\r
+  @param[out] OpCodeBuffer  On output, a dynamically allocated opcode buffer\r
+                            with drop down list options corresponding to GOP\r
+                            resolutions. The caller is responsible for freeing\r
+                            OpCodeBuffer with HiiFreeOpCodeHandle() after use.\r
+\r
+  @retval EFI_SUCESS  Opcodes have been successfully produced.\r
+\r
+  @return             Status codes from underlying functions. PackageList may\r
+                      have been extended with new strings. OpCodeBuffer is\r
+                      unchanged.\r
+**/\r
+STATIC\r
+EFI_STATUS\r
+EFIAPI\r
+CreateResolutionOptions (\r
+  IN  EFI_HII_HANDLE  *PackageList,\r
+  OUT VOID            **OpCodeBuffer\r
+  )\r
+{\r
+  EFI_STATUS                   Status;\r
+  VOID                         *OutputBuffer;\r
+  EFI_STRING_ID                NewString;\r
+  VOID                         *OpCode;\r
+\r
+  OutputBuffer = HiiAllocateOpCodeHandle ();\r
+  if (OutputBuffer == NULL) {\r
+    return EFI_OUT_OF_RESOURCES;\r
+  }\r
+\r
+  NewString = HiiSetString (PackageList, 0 /* new string */, L"800x600",\r
+                NULL /* for all languages */);\r
+  if (NewString == 0) {\r
+    Status = EFI_OUT_OF_RESOURCES;\r
+    goto FreeOutputBuffer;\r
+  }\r
+  OpCode = HiiCreateOneOfOptionOpCode (OutputBuffer, NewString,\r
+             0 /* Flags */, EFI_IFR_NUMERIC_SIZE_4, 0 /* Value */);\r
+  if (OpCode == NULL) {\r
+    Status = EFI_OUT_OF_RESOURCES;\r
+    goto FreeOutputBuffer;\r
+  }\r
+\r
+  *OpCodeBuffer = OutputBuffer;\r
+  return EFI_SUCCESS;\r
+\r
+FreeOutputBuffer:\r
+  HiiFreeOpCodeHandle (OutputBuffer);\r
+\r
+  return Status;\r
+}\r
+\r
+\r
+/**\r
+  Populate the form identified by the (PackageList, FormSetGuid, FormId)\r
+  triplet.\r
+\r
+  @retval EFI_SUCESS  Form successfully updated.\r
+  @return             Status codes from underlying functions.\r
+\r
+**/\r
+STATIC\r
+EFI_STATUS\r
+EFIAPI\r
+PopulateForm (\r
+  IN  EFI_HII_HANDLE  *PackageList,\r
+  IN  EFI_GUID        *FormSetGuid,\r
+  IN  EFI_FORM_ID     FormId\r
+  )\r
+{\r
+  EFI_STATUS         Status;\r
+  VOID               *OpCodeBuffer;\r
+  VOID               *OpCode;\r
+  EFI_IFR_GUID_LABEL *Anchor;\r
+  VOID               *OpCodeBuffer2;\r
+\r
+  OpCodeBuffer2 = NULL;\r
+\r
+  //\r
+  // 1. Allocate an empty opcode buffer.\r
+  //\r
+  OpCodeBuffer = HiiAllocateOpCodeHandle ();\r
+  if (OpCodeBuffer == NULL) {\r
+    return EFI_OUT_OF_RESOURCES;\r
+  }\r
+\r
+  //\r
+  // 2. Create a label opcode (which is a Tiano extension) inside the buffer.\r
+  // The label's number must match the "anchor" label in the form.\r
+  //\r
+  OpCode = HiiCreateGuidOpCode (OpCodeBuffer, &gEfiIfrTianoGuid,\r
+             NULL /* optional copy origin */, sizeof *Anchor);\r
+  if (OpCode == NULL) {\r
+    Status = EFI_OUT_OF_RESOURCES;\r
+    goto FreeOpCodeBuffer;\r
+  }\r
+  Anchor               = OpCode;\r
+  Anchor->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL;\r
+  Anchor->Number       = LABEL_RES_NEXT;\r
+\r
+  //\r
+  // 3. Create the opcodes inside the buffer that are to be inserted into the\r
+  // form.\r
+  //\r
+  // 3.1. Get a list of resolutions.\r
+  //\r
+  Status = CreateResolutionOptions (PackageList, &OpCodeBuffer2);\r
+  if (EFI_ERROR (Status)) {\r
+    goto FreeOpCodeBuffer;\r
+  }\r
+\r
+  //\r
+  // 3.2. Create a one-of-many question with the above options.\r
+  //\r
+  OpCode = HiiCreateOneOfOpCode (\r
+             OpCodeBuffer,                        // create opcode inside this\r
+                                                  //   opcode buffer,\r
+             QUESTION_RES_NEXT,                   // ID of question,\r
+             FORMSTATEID_MAIN_FORM,               // identifies form state\r
+                                                  //   storage,\r
+             (UINT16) OFFSET_OF (MAIN_FORM_STATE, // value of question stored\r
+                        NextPreferredResolution), //   at this offset,\r
+             STRING_TOKEN (STR_RES_NEXT),         // Prompt,\r
+             STRING_TOKEN (STR_RES_NEXT_HELP),    // Help,\r
+             0,                                   // QuestionFlags,\r
+             EFI_IFR_NUMERIC_SIZE_4,              // see sizeof\r
+                                                  //   NextPreferredResolution,\r
+             OpCodeBuffer2,                       // buffer with possible\r
+                                                  //   choices,\r
+             NULL                                 // DEFAULT opcodes\r
+             );\r
+  if (OpCode == NULL) {\r
+    Status = EFI_OUT_OF_RESOURCES;\r
+    goto FreeOpCodeBuffer2;\r
+  }\r
+\r
+  //\r
+  // 4. Update the form with the opcode buffer.\r
+  //\r
+  Status = HiiUpdateForm (PackageList, FormSetGuid, FormId,\r
+             OpCodeBuffer, // buffer with head anchor, and new contents to be\r
+                           // inserted at it\r
+             NULL          // buffer with tail anchor, for deleting old\r
+                           // contents up to it\r
+             );\r
+\r
+FreeOpCodeBuffer2:\r
+  HiiFreeOpCodeHandle (OpCodeBuffer2);\r
+\r
+FreeOpCodeBuffer:\r
+  HiiFreeOpCodeHandle (OpCodeBuffer);\r
+\r
+  return Status;\r
+}\r
+\r
+\r
 /**\r
   Load and execute the platform configuration.\r
 \r
@@ -227,8 +433,17 @@ PlatformInit (
     goto UninstallProtocols;\r
   }\r
 \r
+  Status = PopulateForm (mInstalledPackages, &gOvmfPlatformConfigGuid,\r
+             FORMID_MAIN_FORM);\r
+  if (EFI_ERROR (Status)) {\r
+    goto RemovePackages;\r
+  }\r
+\r
   return EFI_SUCCESS;\r
 \r
+RemovePackages:\r
+  HiiRemovePackages (mInstalledPackages);\r
+\r
 UninstallProtocols:\r
   gBS->UninstallMultipleProtocolInterfaces (ImageHandle,\r
          &gEfiDevicePathProtocolGuid,      &mPkgDevicePath,\r