mirror of https://github.com/acidanthera/audk.git
136 lines
4.1 KiB
C
136 lines
4.1 KiB
C
/** @file
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Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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Module Name:
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NVDataStruc.h
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Abstract:
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NVData structure used by the sample driver
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Revision History:
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**/
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#ifndef _NVDATASTRUC_H_
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#define _NVDATASTRUC_H_
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#include <Guid/HiiPlatformSetupFormset.h>
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#include <Guid/HiiFormMapMethodGuid.h>
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#include <Guid/DriverSampleHii.h>
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#include <Guid/ZeroGuid.h>
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#define CONFIGURATION_VARSTORE_ID 0x1234
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#define BITS_VARSTORE_ID 0x2345
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#pragma pack(1)
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//
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// !!! For a structure with a series of bit fields and used as a storage in vfr file, and if the bit fields do not add up to the size of the defined type.
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// In the C code use sizeof() to get the size the strucure, the results may vary form the compiler(VS,GCC...).
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// But the size of the storage calculated by VfrCompiler is fixed (calculate with alignment).
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// To avoid above case, we need to make the total bit width in the structure aligned with the size of the defined type for these bit fields. We can:
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// 1. Add bit field (with/without name) with remianing with for padding.
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// 2. Add unnamed bit field with 0 for padding, the amount of padding is determined by the alignment characteristics of the members of the structure.
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//
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typedef struct {
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UINT16 NestByteField;
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UINT8 : 1; // unamed field can be used for padding
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UINT8 NestBitCheckbox : 1;
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UINT8 NestBitOneof : 2;
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UINT8 : 0; // Special width 0 can be used to force alignment at the next word boundary
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UINT8 NestBitNumeric : 4;
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} MY_BITS_DATA;
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typedef union {
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UINT8 UnionNumeric;
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UINT8 UnionNumericAlias;
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} MY_EFI_UNION_DATA;
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typedef struct {
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UINT16 MyStringData[40];
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UINT16 SomethingHiddenForHtml;
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UINT8 HowOldAreYouInYearsManual;
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UINT16 HowTallAreYouManual;
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UINT8 HowOldAreYouInYears;
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UINT16 HowTallAreYou;
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UINT8 MyFavoriteNumber;
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UINT8 TestLateCheck;
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UINT8 TestLateCheck2;
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UINT8 QuestionAboutTreeHugging;
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UINT8 ChooseToActivateNuclearWeaponry;
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UINT8 SuppressGrayOutSomething;
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UINT8 OrderedList[8];
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UINT16 BootOrder[8];
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UINT8 BootOrderLarge;
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UINT8 DynamicRefresh;
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UINT8 DynamicOneof;
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UINT8 DynamicOrderedList[5];
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UINT8 Reserved;
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EFI_HII_REF RefData;
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UINT8 NameValueVar0;
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UINT16 NameValueVar1;
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UINT16 NameValueVar2[20];
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UINT8 SerialPortNo;
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UINT8 SerialPortStatus;
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UINT16 SerialPortIo;
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UINT8 SerialPortIrq;
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UINT8 GetDefaultValueFromCallBack;
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UINT8 GetDefaultValueFromAccess;
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EFI_HII_TIME Time;
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UINT8 RefreshGuidCount;
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UINT8 Match2;
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UINT8 GetDefaultValueFromCallBackForOrderedList[3];
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UINT8 BitCheckbox : 1;
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UINT8 ReservedBits: 7; // Reserved bit fields for padding.
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UINT16 BitOneof : 6;
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UINT16 : 0; // Width 0 used to force alignment.
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UINT16 BitNumeric : 12;
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MY_BITS_DATA MyBitData;
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MY_EFI_UNION_DATA MyUnionData;
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} DRIVER_SAMPLE_CONFIGURATION;
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//
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// 2nd NV data structure definition
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//
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typedef struct {
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UINT8 Field8;
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UINT16 Field16;
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UINT8 OrderedList[3];
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UINT16 SubmittedCallback;
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} MY_EFI_VARSTORE_DATA;
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//
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// 3rd NV data structure definition
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//
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typedef struct {
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MY_BITS_DATA BitsData;
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UINT32 EfiBitGrayoutTest : 5;
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UINT32 EfiBitNumeric : 4;
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UINT32 EfiBitOneof : 10;
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UINT32 EfiBitCheckbox : 1;
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UINT32 : 0; // Width 0 used to force alignment.
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} MY_EFI_BITS_VARSTORE_DATA;
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//
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// Labels definition
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//
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#define LABEL_UPDATE1 0x1234
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#define LABEL_UPDATE2 0x2234
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#define LABEL_UPDATE3 0x3234
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#define LABEL_END 0x2223
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#pragma pack()
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#endif
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