MdePkg/Include/Uefi/UefiBaseType.h

   1
   2 /* @file
   3
   4   Defines data types and constants introduced in UEFI.
   5
   6 Copyright (c) 2006 - 2007, Intel Corporation
   7 All rights reserved. This program and the accompanying materials
   8 are licensed and made available under the terms and conditions of the BSD License
   9 which accompanies this distribution.  The full text of the license may be found at
  10 http://opensource.org/licenses/bsd-license.php
  11
  12 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  13 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  14
  15 **/
  16
  17 #ifndef __UEFI_BASETYPE_H__
  18 #define __UEFI_BASETYPE_H__
  19
  20 #include "Base.h"
  21
  22 //
  23 // Basical data type definitions introduced in UEFI.
  24 //
  25 typedef GUID                      EFI_GUID;
  26 typedef RETURN_STATUS             EFI_STATUS;
  27 typedef VOID                      *EFI_HANDLE;
  28
  29 typedef VOID                      *EFI_EVENT;
  30
  31 typedef UINTN                     EFI_TPL;
  32
  33
  34 typedef UINT64                    EFI_LBA;
  35
  36
  37 typedef UINT16                    EFI_HII_HANDLE;
  38 typedef UINT16                    STRING_REF;
  39
  40 typedef UINT64                    EFI_PHYSICAL_ADDRESS;
  41 typedef UINT64                    EFI_VIRTUAL_ADDRESS;
  42
  43 //
  44 // EFI Time Abstraction:
  45 //  Year:       2000 - 20XX
  46 //  Month:      1 - 12
  47 //  Day:        1 - 31
  48 //  Hour:       0 - 23
  49 //  Minute:     0 - 59
  50 //  Second:     0 - 59
  51 //  Nanosecond: 0 - 999,999,999
  52 //  TimeZone:   -1440 to 1440 or 2047
  53 //
  54 typedef struct {
  55   UINT16  Year;
  56   UINT8   Month;
  57   UINT8   Day;
  58   UINT8   Hour;
  59   UINT8   Minute;
  60   UINT8   Second;
  61   UINT8   Pad1;
  62   UINT32  Nanosecond;
  63   INT16   TimeZone;
  64   UINT8   Daylight;
  65   UINT8   Pad2;
  66 } EFI_TIME;
  67
  68 //
  69 // Enumeration of EFI_STATUS.
  70 //
  71 #define EFI_SUCCESS               RETURN_SUCCESS
  72 #define EFI_LOAD_ERROR            RETURN_LOAD_ERROR
  73 #define EFI_INVALID_PARAMETER     RETURN_INVALID_PARAMETER
  74 #define EFI_UNSUPPORTED           RETURN_UNSUPPORTED
  75 #define EFI_BAD_BUFFER_SIZE       RETURN_BAD_BUFFER_SIZE
  76 #define EFI_BUFFER_TOO_SMALL      RETURN_BUFFER_TOO_SMALL
  77 #define EFI_NOT_READY             RETURN_NOT_READY
  78 #define EFI_DEVICE_ERROR          RETURN_DEVICE_ERROR
  79 #define EFI_WRITE_PROTECTED       RETURN_WRITE_PROTECTED
  80 #define EFI_OUT_OF_RESOURCES      RETURN_OUT_OF_RESOURCES
  81 #define EFI_VOLUME_CORRUPTED      RETURN_VOLUME_CORRUPTED
  82 #define EFI_VOLUME_FULL           RETURN_VOLUME_FULL
  83 #define EFI_NO_MEDIA              RETURN_NO_MEDIA
  84 #define EFI_MEDIA_CHANGED         RETURN_MEDIA_CHANGED
  85 #define EFI_NOT_FOUND             RETURN_NOT_FOUND
  86 #define EFI_ACCESS_DENIED         RETURN_ACCESS_DENIED
  87 #define EFI_NO_RESPONSE           RETURN_NO_RESPONSE
  88 #define EFI_NO_MAPPING            RETURN_NO_MAPPING
  89 #define EFI_TIMEOUT               RETURN_TIMEOUT
  90 #define EFI_NOT_STARTED           RETURN_NOT_STARTED
  91 #define EFI_ALREADY_STARTED       RETURN_ALREADY_STARTED
  92 #define EFI_ABORTED               RETURN_ABORTED
  93 #define EFI_ICMP_ERROR            RETURN_ICMP_ERROR
  94 #define EFI_TFTP_ERROR            RETURN_TFTP_ERROR
  95 #define EFI_PROTOCOL_ERROR        RETURN_PROTOCOL_ERROR
  96 #define EFI_INCOMPATIBLE_VERSION  RETURN_INCOMPATIBLE_VERSION
  97 #define EFI_SECURITY_VIOLATION    RETURN_SECURITY_VIOLATION
  98 #define EFI_CRC_ERROR             RETURN_CRC_ERROR
  99 #define EFI_END_OF_MEDIA          RETURN_END_OF_MEDIA
 100 #define EFI_END_OF_FILE           RETURN_END_OF_FILE
 101
 102 #define EFI_WARN_UNKNOWN_GLYPH    RETURN_WARN_UNKNOWN_GLYPH
 103 #define EFI_WARN_DELETE_FAILURE   RETURN_WARN_DELETE_FAILURE
 104 #define EFI_WARN_WRITE_FAILURE    RETURN_WARN_WRITE_FAILURE
 105 #define EFI_WARN_BUFFER_TOO_SMALL RETURN_WARN_BUFFER_TOO_SMALL
 106
 107
 108 #define NULL_HANDLE               ((VOID *) 0)
 109
 110 //
 111 // Define macro to encode the status code.
 112 //
 113 #define EFIERR(_a)                ENCODE_ERROR(_a)
 114
 115 #define EFI_ERROR(A)              RETURN_ERROR(A)
 116
 117 //
 118 // Define macros to build data structure signatures from characters.
 119 //
 120 #define EFI_SIGNATURE_16(A, B)        ((A) | (B << 8))
 121 #define EFI_SIGNATURE_32(A, B, C, D)  (EFI_SIGNATURE_16 (A, B) | (EFI_SIGNATURE_16 (C, D) << 16))
 122 #define EFI_SIGNATURE_64(A, B, C, D, E, F, G, H) \
 123     (EFI_SIGNATURE_32 (A, B, C, D) | ((UINT64) (EFI_SIGNATURE_32 (E, F, G, H)) << 32))
 124
 125
 126 //
 127 //  Returns the byte offset to a field within a structure
 128 //
 129 #define EFI_FIELD_OFFSET(TYPE,Field) ((UINTN)(&(((TYPE *) 0)->Field)))
 130
 131 //
 132 // The EFI memory allocation functions work in units of EFI_PAGEs that are
 133 // 4K. This should in no way be confused with the page size of the processor.
 134 // An EFI_PAGE is just the quanta of memory in EFI.
 135 //
 136 #define EFI_PAGE_SIZE             0x1000
 137 #define EFI_PAGE_MASK             0xFFF
 138 #define EFI_PAGE_SHIFT            12
 139
 140
 141 #endif