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 } 200 201
