Nt32Pkg/MiscSubClassPlatformDxe/MiscSubclassDriverEntryPoint.c

   1 /**@file
   2
   3 Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
   4 This program and the accompanying materials
   5 are licensed and made available under the terms and conditions of the BSD License
   6 which accompanies this distribution.  The full text of the license may be found at
   7 http://opensource.org/licenses/bsd-license.php
   8
   9 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  10 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  11
  12 Module Name:
  13
  14   MiscSubclassDriverEntryPoint.c
  15
  16 Abstract:
  17
  18   This driver parses the mMiscSubclassDataTable structure and reports
  19   any generated data to the DataHub.
  20
  21 **/
  22
  23 #include "MiscSubclassDriver.h"
  24
  25 EFI_HII_HANDLE  mHiiHandle;
  26
  27 /**
  28   This is the standard EFI driver point that detects whether there is a
  29   MemoryConfigurationData Variable and, if so, reports memory configuration info
  30   to the DataHub.
  31
  32   @param  ImageHandle  Handle for the image of this driver
  33   @param  SystemTable  Pointer to the EFI System Table
  34
  35   @return EFI_SUCCESS if the data is successfully reported
  36   @return EFI_NOT_FOUND if the HOB list could not be located.
  37
  38 **/
  39 EFI_STATUS
  40 LogMemorySmbiosRecord (
  41   VOID
  42   )
  43 {
  44   EFI_STATUS                      Status;
  45   UINT64                          TotalMemorySize;
  46   UINT8                           NumSlots;
  47   SMBIOS_TABLE_TYPE19             *Type19Record;
  48   EFI_SMBIOS_HANDLE               MemArrayMappedAddrSmbiosHandle;
  49   EFI_SMBIOS_PROTOCOL             *Smbios;
  50   CHAR16                          *Nt32MemString;
  51
  52   Status = gBS->LocateProtocol (&gEfiSmbiosProtocolGuid, NULL, (VOID**)&Smbios);
  53   ASSERT_EFI_ERROR (Status);
  54
  55   NumSlots        = 1;
  56
  57   //
  58   // Process Memory String in form size!size ...
  59   // So 64!64 is 128 MB
  60   //
  61   Nt32MemString   = PcdGetPtr (PcdWinNtMemorySize);
  62   for (TotalMemorySize = 0; *Nt32MemString != '\0';) {
  63     TotalMemorySize += StrDecimalToUint64 (Nt32MemString);
  64     while (*Nt32MemString != '\0') {
  65       if (*Nt32MemString == '!') {
  66         Nt32MemString++;
  67         break;
  68       }
  69       Nt32MemString++;
  70     }
  71   }
  72
  73   //
  74   // Convert Total Memory Size to based on KiloByte
  75   //
  76   TotalMemorySize = LShiftU64 (TotalMemorySize, 20);
  77   //
  78   // Generate Memory Array Mapped Address info
  79   //
  80   Type19Record = AllocateZeroPool(sizeof (SMBIOS_TABLE_TYPE19) + 2);
  81   Type19Record->Hdr.Type = EFI_SMBIOS_TYPE_MEMORY_ARRAY_MAPPED_ADDRESS;
  82   Type19Record->Hdr.Length = sizeof(SMBIOS_TABLE_TYPE19);
  83   Type19Record->Hdr.Handle = 0;
  84   Type19Record->StartingAddress = 0;
  85   Type19Record->EndingAddress =  (UINT32)RShiftU64(TotalMemorySize, 10) - 1;
  86   Type19Record->MemoryArrayHandle = 0;
  87   Type19Record->PartitionWidth = (UINT8)(NumSlots);
  88
  89   //
  90   // Generate Memory Array Mapped Address info (TYPE 19)
  91   //
  92   Status = AddSmbiosRecord (Smbios, &MemArrayMappedAddrSmbiosHandle, (EFI_SMBIOS_TABLE_HEADER*) Type19Record);
  93
  94   FreePool(Type19Record);
  95   ASSERT_EFI_ERROR (Status);
  96
  97   return Status;
  98 }
  99
 100
 101 EFI_STATUS
 102 EFIAPI
 103 MiscSubclassDriverEntryPoint (
 104   IN EFI_HANDLE         ImageHandle,
 105   IN EFI_SYSTEM_TABLE   *SystemTable
 106   )
 107 /*++
 108 Description:
 109
 110   Standard EFI driver point.  This driver parses the mMiscSubclassDataTable
 111   structure and reports any generated data to the DataHub.
 112
 113 Arguments:
 114
 115   ImageHandle
 116     Handle for the image of this driver
 117
 118   SystemTable
 119     Pointer to the EFI System Table
 120
 121 Returns:
 122
 123   EFI_SUCCESS
 124     The data was successfully reported to the Data Hub.
 125
 126 --*/
 127 {
 128   UINTN                Index;
 129   EFI_STATUS           EfiStatus;
 130   EFI_SMBIOS_PROTOCOL  *Smbios;
 131
 132   EfiStatus = gBS->LocateProtocol(&gEfiSmbiosProtocolGuid, NULL, (VOID**)&Smbios);
 133
 134   if (EFI_ERROR(EfiStatus)) {
 135     DEBUG((EFI_D_ERROR, "Could not locate SMBIOS protocol.  %r\n", EfiStatus));
 136     return EfiStatus;
 137   }
 138
 139   mHiiHandle = HiiAddPackages (
 140                  &gEfiCallerIdGuid,
 141                  NULL,
 142                  MiscSubclassStrings,
 143                  NULL
 144                  );
 145   ASSERT (mHiiHandle != NULL);
 146
 147   for (Index = 0; Index < mMiscSubclassDataTableEntries; ++Index) {
 148     //
 149     // If the entry have a function pointer, just log the data.
 150     //
 151     if (mMiscSubclassDataTable[Index].Function != NULL) {
 152       EfiStatus = (*mMiscSubclassDataTable[Index].Function)(
 153         mMiscSubclassDataTable[Index].RecordData,
 154         Smbios
 155         );
 156
 157       if (EFI_ERROR(EfiStatus)) {
 158         DEBUG((EFI_D_ERROR, "Misc smbios store error.  Index=%d, ReturnStatus=%r\n", Index, EfiStatus));
 159         return EfiStatus;
 160       }
 161     }
 162   }
 163
 164   //
 165   // Log Memory SMBIOS Record
 166   //
 167   EfiStatus = LogMemorySmbiosRecord();
 168   return EfiStatus;
 169 }
 170
 171 /**
 172   Add an SMBIOS record.
 173
 174   @param  Smbios                The EFI_SMBIOS_PROTOCOL instance.
 175   @param  SmbiosHandle          A unique handle will be assigned to the SMBIOS record.
 176   @param  Record                The data for the fixed portion of the SMBIOS record. The format of the record is
 177                                 determined by EFI_SMBIOS_TABLE_HEADER.Type. The size of the formatted area is defined
 178                                 by EFI_SMBIOS_TABLE_HEADER.Length and either followed by a double-null (0x0000) or
 179                                 a set of null terminated strings and a null.
 180
 181   @retval EFI_SUCCESS           Record was added.
 182   @retval EFI_OUT_OF_RESOURCES  Record was not added due to lack of system resources.
 183
 184 **/
 185 EFI_STATUS
 186 AddSmbiosRecord (
 187   IN EFI_SMBIOS_PROTOCOL        *Smbios,
 188   OUT EFI_SMBIOS_HANDLE         *SmbiosHandle,
 189   IN EFI_SMBIOS_TABLE_HEADER    *Record
 190   )
 191 {
 192   *SmbiosHandle = SMBIOS_HANDLE_PI_RESERVED;
 193   return Smbios->Add (
 194                    Smbios,
 195                    NULL,
 196                    SmbiosHandle,
 197                    Record
 198                    );
 199 }
 200