EmulatorPkg/MiscSubClassPlatformDxe/MiscSubclassDriverEntryPoint.c

   1 /*++
   2
   3 Copyright (c) 2006 - 2011, 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                          *MemString;
  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   MemString   = (CHAR16 *)PcdGetPtr (PcdEmuMemorySize);
  62   for (TotalMemorySize = 0; *MemString != '\0';) {
  63     TotalMemorySize += StrDecimalToUint64 (MemString);
  64     while (*MemString != '\0') {
  65       if (*MemString == '!') {
  66         MemString++;
  67         break;
  68       }
  69       MemString++;
  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 = AllocatePool(sizeof (SMBIOS_TABLE_TYPE19));
  81   ZeroMem(Type19Record, sizeof(SMBIOS_TABLE_TYPE19));
  82   Type19Record->Hdr.Type = EFI_SMBIOS_TYPE_MEMORY_ARRAY_MAPPED_ADDRESS;
  83   Type19Record->Hdr.Length = sizeof(SMBIOS_TABLE_TYPE19);
  84   Type19Record->Hdr.Handle = 0;
  85   Type19Record->StartingAddress = 0;
  86   Type19Record->EndingAddress =  (UINT32)RShiftU64(TotalMemorySize, 10) - 1;
  87   Type19Record->MemoryArrayHandle = 0;
  88   Type19Record->PartitionWidth = (UINT8)(NumSlots);
  89
  90   //
  91   // Generate Memory Array Mapped Address info (TYPE 19)
  92   //
  93   Status = AddSmbiosRecord (Smbios, &MemArrayMappedAddrSmbiosHandle, (EFI_SMBIOS_TABLE_HEADER*) Type19Record);
  94
  95   FreePool(Type19Record);
  96   ASSERT_EFI_ERROR (Status);
  97
  98   return Status;
  99 }
 100
 101
 102 EFI_STATUS
 103 EFIAPI
 104 MiscSubclassDriverEntryPoint (
 105   IN EFI_HANDLE         ImageHandle,
 106   IN EFI_SYSTEM_TABLE   *SystemTable
 107   )
 108 /*++
 109 Description:
 110
 111   Standard EFI driver point.  This driver parses the mMiscSubclassDataTable
 112   structure and reports any generated data to the DataHub.
 113
 114 Arguments:
 115
 116   ImageHandle
 117     Handle for the image of this driver
 118
 119   SystemTable
 120     Pointer to the EFI System Table
 121
 122 Returns:
 123
 124   EFI_SUCCESS
 125     The data was successfully reported to the Data Hub.
 126
 127 **/
 128 {
 129   UINTN                Index;
 130   EFI_STATUS           EfiStatus;
 131   EFI_SMBIOS_PROTOCOL  *Smbios;
 132
 133   EfiStatus = gBS->LocateProtocol(&gEfiSmbiosProtocolGuid, NULL, (VOID**)&Smbios);
 134
 135   if (EFI_ERROR(EfiStatus)) {
 136     DEBUG((EFI_D_ERROR, "Could not locate SMBIOS protocol.  %r\n", EfiStatus));
 137     return EfiStatus;
 138   }
 139
 140   mHiiHandle = HiiAddPackages (
 141                  &gEfiCallerIdGuid,
 142                  NULL,
 143                  MiscSubclassStrings,
 144                  NULL
 145                  );
 146   ASSERT (mHiiHandle != NULL);
 147
 148   for (Index = 0; Index < mMiscSubclassDataTableEntries; ++Index) {
 149     //
 150     // If the entry have a function pointer, just log the data.
 151     //
 152     if (mMiscSubclassDataTable[Index].Function != NULL) {
 153       EfiStatus = (*mMiscSubclassDataTable[Index].Function)(
 154         mMiscSubclassDataTable[Index].RecordData,
 155         Smbios
 156         );
 157
 158       if (EFI_ERROR(EfiStatus)) {
 159         DEBUG((EFI_D_ERROR, "Misc smbios store error.  Index=%d, ReturnStatus=%r\n", Index, EfiStatus));
 160         return EfiStatus;
 161       }
 162     }
 163   }
 164
 165   //
 166   // Log Memory SMBIOS Record
 167   //
 168   EfiStatus = LogMemorySmbiosRecord();
 169   return EfiStatus;
 170 }
 171
 172 /**
 173   Add an SMBIOS record.
 174
 175   @param  Smbios                The EFI_SMBIOS_PROTOCOL instance.
 176   @param  SmbiosHandle          A unique handle will be assigned to the SMBIOS record.
 177   @param  Record                The data for the fixed portion of the SMBIOS record. The format of the record is
 178                                 determined by EFI_SMBIOS_TABLE_HEADER.Type. The size of the formatted area is defined
 179                                 by EFI_SMBIOS_TABLE_HEADER.Length and either followed by a double-null (0x0000) or
 180                                 a set of null terminated strings and a null.
 181
 182   @retval EFI_SUCCESS           Record was added.
 183   @retval EFI_OUT_OF_RESOURCES  Record was not added due to lack of system resources.
 184
 185 **/
 186 EFI_STATUS
 187 AddSmbiosRecord (
 188   IN EFI_SMBIOS_PROTOCOL        *Smbios,
 189   OUT EFI_SMBIOS_HANDLE         *SmbiosHandle,
 190   IN EFI_SMBIOS_TABLE_HEADER    *Record
 191   )
 192 {
 193   *SmbiosHandle = SMBIOS_HANDLE_PI_RESERVED;
 194   return Smbios->Add (
 195                    Smbios,
 196                    NULL,
 197                    SmbiosHandle,
 198                    Record
 199                    );
 200 }
 201