Nt32Pkg/MiscSubClassPlatformDxe/MiscSubclassDriverEntryPoint.c

   1 /**@file
   2
   3 Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
   4 SPDX-License-Identifier: BSD-2-Clause-Patent
   5
   6 Module Name:
   7
   8   MiscSubclassDriverEntryPoint.c
   9
  10 Abstract:
  11
  12   This driver parses the mMiscSubclassDataTable structure and reports
  13   any generated data to the DataHub.
  14
  15 **/
  16
  17 #include "MiscSubclassDriver.h"
  18
  19 EFI_HII_HANDLE  mHiiHandle;
  20
  21 /**
  22   This is the standard EFI driver point that detects whether there is a
  23   MemoryConfigurationData Variable and, if so, reports memory configuration info
  24   to the DataHub.
  25
  26   @param  ImageHandle  Handle for the image of this driver
  27   @param  SystemTable  Pointer to the EFI System Table
  28
  29   @return EFI_SUCCESS if the data is successfully reported
  30   @return EFI_NOT_FOUND if the HOB list could not be located.
  31
  32 **/
  33 EFI_STATUS
  34 LogMemorySmbiosRecord (
  35   VOID
  36   )
  37 {
  38   EFI_STATUS                      Status;
  39   UINT64                          TotalMemorySize;
  40   UINT8                           NumSlots;
  41   SMBIOS_TABLE_TYPE19             *Type19Record;
  42   EFI_SMBIOS_HANDLE               MemArrayMappedAddrSmbiosHandle;
  43   EFI_SMBIOS_PROTOCOL             *Smbios;
  44   CHAR16                          *Nt32MemString;
  45
  46   Status = gBS->LocateProtocol (&gEfiSmbiosProtocolGuid, NULL, (VOID**)&Smbios);
  47   ASSERT_EFI_ERROR (Status);
  48
  49   NumSlots        = 1;
  50
  51   //
  52   // Process Memory String in form size!size ...
  53   // So 64!64 is 128 MB
  54   //
  55   Nt32MemString   = PcdGetPtr (PcdWinNtMemorySize);
  56   for (TotalMemorySize = 0; *Nt32MemString != '\0';) {
  57     TotalMemorySize += StrDecimalToUint64 (Nt32MemString);
  58     while (*Nt32MemString != '\0') {
  59       if (*Nt32MemString == '!') {
  60         Nt32MemString++;
  61         break;
  62       }
  63       Nt32MemString++;
  64     }
  65   }
  66
  67   //
  68   // Convert Total Memory Size to based on KiloByte
  69   //
  70   TotalMemorySize = LShiftU64 (TotalMemorySize, 20);
  71   //
  72   // Generate Memory Array Mapped Address info
  73   //
  74   Type19Record = AllocateZeroPool(sizeof (SMBIOS_TABLE_TYPE19) + 2);
  75   Type19Record->Hdr.Type = EFI_SMBIOS_TYPE_MEMORY_ARRAY_MAPPED_ADDRESS;
  76   Type19Record->Hdr.Length = sizeof(SMBIOS_TABLE_TYPE19);
  77   Type19Record->Hdr.Handle = 0;
  78   Type19Record->StartingAddress = 0;
  79   Type19Record->EndingAddress =  (UINT32)RShiftU64(TotalMemorySize, 10) - 1;
  80   Type19Record->MemoryArrayHandle = 0;
  81   Type19Record->PartitionWidth = (UINT8)(NumSlots);
  82
  83   //
  84   // Generate Memory Array Mapped Address info (TYPE 19)
  85   //
  86   Status = AddSmbiosRecord (Smbios, &MemArrayMappedAddrSmbiosHandle, (EFI_SMBIOS_TABLE_HEADER*) Type19Record);
  87
  88   FreePool(Type19Record);
  89   ASSERT_EFI_ERROR (Status);
  90
  91   return Status;
  92 }
  93
  94
  95 EFI_STATUS
  96 EFIAPI
  97 MiscSubclassDriverEntryPoint (
  98   IN EFI_HANDLE         ImageHandle,
  99   IN EFI_SYSTEM_TABLE   *SystemTable
 100   )
 101 /*++
 102 Description:
 103
 104   Standard EFI driver point.  This driver parses the mMiscSubclassDataTable
 105   structure and reports any generated data to the DataHub.
 106
 107 Arguments:
 108
 109   ImageHandle
 110     Handle for the image of this driver
 111
 112   SystemTable
 113     Pointer to the EFI System Table
 114
 115 Returns:
 116
 117   EFI_SUCCESS
 118     The data was successfully reported to the Data Hub.
 119
 120 --*/
 121 {
 122   UINTN                Index;
 123   EFI_STATUS           EfiStatus;
 124   EFI_SMBIOS_PROTOCOL  *Smbios;
 125
 126   EfiStatus = gBS->LocateProtocol(&gEfiSmbiosProtocolGuid, NULL, (VOID**)&Smbios);
 127
 128   if (EFI_ERROR(EfiStatus)) {
 129     DEBUG((EFI_D_ERROR, "Could not locate SMBIOS protocol.  %r\n", EfiStatus));
 130     return EfiStatus;
 131   }
 132
 133   mHiiHandle = HiiAddPackages (
 134                  &gEfiCallerIdGuid,
 135                  NULL,
 136                  MiscSubclassStrings,
 137                  NULL
 138                  );
 139   ASSERT (mHiiHandle != NULL);
 140
 141   for (Index = 0; Index < mMiscSubclassDataTableEntries; ++Index) {
 142     //
 143     // If the entry have a function pointer, just log the data.
 144     //
 145     if (mMiscSubclassDataTable[Index].Function != NULL) {
 146       EfiStatus = (*mMiscSubclassDataTable[Index].Function)(
 147         mMiscSubclassDataTable[Index].RecordData,
 148         Smbios
 149         );
 150
 151       if (EFI_ERROR(EfiStatus)) {
 152         DEBUG((EFI_D_ERROR, "Misc smbios store error.  Index=%d, ReturnStatus=%r\n", Index, EfiStatus));
 153         return EfiStatus;
 154       }
 155     }
 156   }
 157
 158   //
 159   // Log Memory SMBIOS Record
 160   //
 161   EfiStatus = LogMemorySmbiosRecord();
 162   return EfiStatus;
 163 }
 164
 165 /**
 166   Add an SMBIOS record.
 167
 168   @param  Smbios                The EFI_SMBIOS_PROTOCOL instance.
 169   @param  SmbiosHandle          A unique handle will be assigned to the SMBIOS record.
 170   @param  Record                The data for the fixed portion of the SMBIOS record. The format of the record is
 171                                 determined by EFI_SMBIOS_TABLE_HEADER.Type. The size of the formatted area is defined
 172                                 by EFI_SMBIOS_TABLE_HEADER.Length and either followed by a double-null (0x0000) or
 173                                 a set of null terminated strings and a null.
 174
 175   @retval EFI_SUCCESS           Record was added.
 176   @retval EFI_OUT_OF_RESOURCES  Record was not added due to lack of system resources.
 177
 178 **/
 179 EFI_STATUS
 180 AddSmbiosRecord (
 181   IN EFI_SMBIOS_PROTOCOL        *Smbios,
 182   OUT EFI_SMBIOS_HANDLE         *SmbiosHandle,
 183   IN EFI_SMBIOS_TABLE_HEADER    *Record
 184   )
 185 {
 186   *SmbiosHandle = SMBIOS_HANDLE_PI_RESERVED;
 187   return Smbios->Add (
 188                    Smbios,
 189                    NULL,
 190                    SmbiosHandle,
 191                    Record
 192                    );
 193 }
 194