| Vishal Bhoj | 82c8071 | 2015-12-15 21:13:33 +0530 | [diff] [blame] | 1 | /** @file
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| 2 | This code supports the implementation of the Smbios protocol
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| 3 |
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| 4 | Copyright (c) 2009 - 2012, Intel Corporation. All rights reserved.<BR>
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| 5 | This program and the accompanying materials
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| 6 | are licensed and made available under the terms and conditions of the BSD License
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| 7 | which accompanies this distribution. The full text of the license may be found at
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| 8 | http://opensource.org/licenses/bsd-license.php
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| 9 |
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| 10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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| 11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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| 12 |
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| 13 | **/
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| 14 |
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| 15 | #ifndef _SMBIOS_DXE_H_
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| 16 | #define _SMBIOS_DXE_H_
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| 17 |
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| 18 |
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| 19 | #include <PiDxe.h>
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| 20 |
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| 21 | #include <Protocol/Smbios.h>
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| 22 | #include <IndustryStandard/SmBios.h>
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| 23 | #include <Guid/EventGroup.h>
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| 24 | #include <Guid/SmBios.h>
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| 25 | #include <Library/DebugLib.h>
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| 26 | #include <Library/UefiDriverEntryPoint.h>
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| 27 | #include <Library/UefiLib.h>
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| 28 | #include <Library/BaseLib.h>
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| 29 | #include <Library/BaseMemoryLib.h>
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| 30 | #include <Library/MemoryAllocationLib.h>
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| 31 | #include <Library/UefiBootServicesTableLib.h>
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| 32 | #include <Library/PcdLib.h>
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| 33 |
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| 34 | //
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| 35 | // The length of the entire structure table (including all strings) must be reported
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| 36 | // in the Structure Table Length field of the SMBIOS Structure Table Entry Point,
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| 37 | // which is a WORD field limited to 65,535 bytes.
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| 38 | //
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| 39 | #define SMBIOS_TABLE_MAX_LENGTH 0xFFFF
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| 40 |
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| 41 | #define SMBIOS_INSTANCE_SIGNATURE SIGNATURE_32 ('S', 'B', 'i', 's')
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| 42 | typedef struct {
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| 43 | UINT32 Signature;
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| 44 | EFI_HANDLE Handle;
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| 45 | //
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| 46 | // Produced protocol
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| 47 | //
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| 48 | EFI_SMBIOS_PROTOCOL Smbios;
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| 49 | //
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| 50 | // Updates to record list must be locked.
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| 51 | //
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| 52 | EFI_LOCK DataLock;
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| 53 | //
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| 54 | // List of EFI_SMBIOS_ENTRY structures.
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| 55 | //
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| 56 | LIST_ENTRY DataListHead;
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| 57 | //
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| 58 | // List of allocated SMBIOS handle.
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| 59 | //
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| 60 | LIST_ENTRY AllocatedHandleListHead;
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| 61 | } SMBIOS_INSTANCE;
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| 62 |
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| 63 | #define SMBIOS_INSTANCE_FROM_THIS(this) CR (this, SMBIOS_INSTANCE, Smbios, SMBIOS_INSTANCE_SIGNATURE)
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| 64 |
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| 65 | //
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| 66 | // SMBIOS record Header
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| 67 | //
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| 68 | // An SMBIOS internal Record is an EFI_SMBIOS_RECORD_HEADER followed by (RecordSize - HeaderSize) bytes of
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| 69 | // data. The format of the data is defined by the SMBIOS spec.
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| 70 | //
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| 71 | //
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| 72 | #define EFI_SMBIOS_RECORD_HEADER_VERSION 0x0100
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| 73 | typedef struct {
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| 74 | UINT16 Version;
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| 75 | UINT16 HeaderSize;
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| 76 | UINTN RecordSize;
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| 77 | EFI_HANDLE ProducerHandle;
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| 78 | UINTN NumberOfStrings;
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| 79 | } EFI_SMBIOS_RECORD_HEADER;
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| 80 |
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| 81 |
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| 82 | //
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| 83 | // Private data structure to contain the SMBIOS record. One record per
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| 84 | // structure. SmbiosRecord is a copy of the data passed in and follows RecordHeader .
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| 85 | //
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| 86 | #define EFI_SMBIOS_ENTRY_SIGNATURE SIGNATURE_32 ('S', 'r', 'e', 'c')
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| 87 | typedef struct {
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| 88 | UINT32 Signature;
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| 89 | LIST_ENTRY Link;
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| 90 | EFI_SMBIOS_RECORD_HEADER *RecordHeader;
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| 91 | UINTN RecordSize;
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| 92 | } EFI_SMBIOS_ENTRY;
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| 93 |
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| 94 | #define SMBIOS_ENTRY_FROM_LINK(link) CR (link, EFI_SMBIOS_ENTRY, Link, EFI_SMBIOS_ENTRY_SIGNATURE)
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| 95 |
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| 96 | //
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| 97 | // Private data to contain the Smbios handle that already allocated.
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| 98 | //
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| 99 | #define SMBIOS_HANDLE_ENTRY_SIGNATURE SIGNATURE_32 ('S', 'h', 'r', 'd')
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| 100 |
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| 101 | typedef struct {
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| 102 | UINT32 Signature;
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| 103 | LIST_ENTRY Link;
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| 104 | //
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| 105 | // Filter driver will register what record guid filter should be used.
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| 106 | //
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| 107 | EFI_SMBIOS_HANDLE SmbiosHandle;
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| 108 |
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| 109 | } SMBIOS_HANDLE_ENTRY;
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| 110 |
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| 111 | #define SMBIOS_HANDLE_ENTRY_FROM_LINK(link) CR (link, SMBIOS_HANDLE_ENTRY, Link, SMBIOS_HANDLE_ENTRY_SIGNATURE)
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| 112 |
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| 113 | typedef struct {
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| 114 | EFI_SMBIOS_TABLE_HEADER Header;
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| 115 | UINT8 Tailing[2];
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| 116 | } EFI_SMBIOS_TABLE_END_STRUCTURE;
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| 117 |
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| 118 | /**
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| 119 | Create Smbios Table and installs the Smbios Table to the System Table.
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| 120 | **/
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| 121 | VOID
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| 122 | EFIAPI
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| 123 | SmbiosTableConstruction (
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| 124 | VOID
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| 125 | );
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| 126 |
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| 127 | #endif
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