EdkCompatibilityPkg/Foundation/Efi/Include/EfiTypes.h

   1 /*++
   2
   3 Copyright (c) 2004, 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   EfiTypes.h
  15
  16 Abstract:
  17
  18   EFI defined types. Use these types when ever possible!
  19
  20 --*/
  21
  22 #ifndef _EFI_TYPES_H_
  23 #define _EFI_TYPES_H_
  24
  25 //
  26 // EFI Data Types based on ANSI C integer types in EfiBind.h
  27 //
  28 typedef uint8_t BOOLEAN;
  29 typedef intn_t INTN;
  30 typedef uintn_t UINTN;
  31 typedef int8_t INT8;
  32 typedef uint8_t UINT8;
  33 typedef int16_t INT16;
  34 typedef uint16_t UINT16;
  35 typedef int32_t INT32;
  36 typedef uint32_t UINT32;
  37 typedef int64_t INT64;
  38 typedef uint64_t UINT64;
  39 typedef char CHAR8;
  40 typedef uint16_t CHAR16;
  41 typedef UINT64 EFI_LBA;
  42
  43 //
  44 // Modifiers for EFI Data Types used to self document code.
  45 // Please see EFI coding convention for proper usage.
  46 //
  47 #ifndef IN
  48 //
  49 // Some other envirnments use this construct, so #ifndef to prevent
  50 // mulitple definition.
  51 //
  52 #define IN
  53 #define OUT
  54 #define OPTIONAL
  55 #endif
  56
  57 #ifndef UNALIGNED
  58 #define UNALIGNED
  59 #endif
  60
  61 //
  62 // Modifiers for EFI Runtime and Boot Services
  63 //
  64 #define EFI_RUNTIMESERVICE
  65 #define EFI_BOOTSERVICE
  66
  67 //
  68 // Boot Service add in EFI 1.1
  69 //
  70 #define EFI_BOOTSERVICE11
  71
  72 //
  73 // Modifiers to absract standard types to aid in debug of problems
  74 //
  75 #define CONST     const
  76 #define STATIC    static
  77 #define VOID      void
  78 #define VOLATILE  volatile
  79
  80 //
  81 // Modifier to ensure that all protocol member functions and EFI intrinsics
  82 // use the correct C calling convention. All protocol member functions and
  83 // EFI intrinsics are required to modify thier member functions with EFIAPI.
  84 //
  85 #ifndef EFIAPI
  86   #define EFIAPI  _EFIAPI
  87 #endif
  88
  89 //
  90 // EFI Constants. They may exist in other build structures, so #ifndef them.
  91 //
  92 #ifndef TRUE
  93 #define TRUE  ((BOOLEAN) 1 == 1)
  94 #endif
  95
  96 #ifndef FALSE
  97 #define FALSE ((BOOLEAN) 0 == 1)
  98 #endif
  99
 100 #ifndef NULL
 101 #define NULL  ((VOID *) 0)
 102 #endif
 103 //
 104 // EFI Data Types derived from other EFI data types.
 105 //
 106 typedef UINTN EFI_STATUS;
 107
 108 typedef VOID *EFI_HANDLE;
 109 #define NULL_HANDLE ((VOID *) 0)
 110
 111 typedef VOID *EFI_EVENT;
 112 typedef UINTN EFI_TPL;
 113
 114 typedef struct {
 115   UINT32  Data1;
 116   UINT16  Data2;
 117   UINT16  Data3;
 118   UINT8   Data4[8];
 119 } EFI_GUID;
 120
 121 typedef union {
 122   EFI_GUID  Guid;
 123   UINT8     Raw[16];
 124 } EFI_GUID_UNION;
 125
 126 //
 127 // EFI Time Abstraction:
 128 //  Year:       2000 - 20XX
 129 //  Month:      1 - 12
 130 //  Day:        1 - 31
 131 //  Hour:       0 - 23
 132 //  Minute:     0 - 59
 133 //  Second:     0 - 59
 134 //  Nanosecond: 0 - 999,999,999
 135 //  TimeZone:   -1440 to 1440 or 2047
 136 //
 137 typedef struct {
 138   UINT16  Year;
 139   UINT8   Month;
 140   UINT8   Day;
 141   UINT8   Hour;
 142   UINT8   Minute;
 143   UINT8   Second;
 144   UINT8   Pad1;
 145   UINT32  Nanosecond;
 146   INT16   TimeZone;
 147   UINT8   Daylight;
 148   UINT8   Pad2;
 149 } EFI_TIME;
 150
 151 //
 152 // Bit definitions for EFI_TIME.Daylight
 153 //
 154 #define EFI_TIME_ADJUST_DAYLIGHT  0x01
 155 #define EFI_TIME_IN_DAYLIGHT      0x02
 156
 157 //
 158 // Value definition for EFI_TIME.TimeZone
 159 //
 160 #define EFI_UNSPECIFIED_TIMEZONE  0x07FF
 161
 162 //
 163 // Networking
 164 //
 165 typedef struct {
 166   UINT8 Addr[4];
 167 } EFI_IPv4_ADDRESS;
 168
 169 typedef struct {
 170   UINT8 Addr[16];
 171 } EFI_IPv6_ADDRESS;
 172
 173 typedef struct {
 174   UINT8 Addr[32];
 175 } EFI_MAC_ADDRESS;
 176
 177 typedef union {
 178   UINT32            Addr[4];
 179   EFI_IPv4_ADDRESS  v4;
 180   EFI_IPv6_ADDRESS  v6;
 181 } EFI_IP_ADDRESS;
 182
 183 typedef enum {
 184   EfiReservedMemoryType,
 185   EfiLoaderCode,
 186   EfiLoaderData,
 187   EfiBootServicesCode,
 188   EfiBootServicesData,
 189   EfiRuntimeServicesCode,
 190   EfiRuntimeServicesData,
 191   EfiConventionalMemory,
 192   EfiUnusableMemory,
 193   EfiACPIReclaimMemory,
 194   EfiACPIMemoryNVS,
 195   EfiMemoryMappedIO,
 196   EfiMemoryMappedIOPortSpace,
 197   EfiPalCode,
 198   EfiMaxMemoryType
 199 } EFI_MEMORY_TYPE;
 200
 201 typedef enum {
 202   AllocateAnyPages,
 203   AllocateMaxAddress,
 204   AllocateAddress,
 205   MaxAllocateType
 206 } EFI_ALLOCATE_TYPE;
 207
 208 typedef struct {
 209   UINT64  Signature;
 210   UINT32  Revision;
 211   UINT32  HeaderSize;
 212   UINT32  CRC32;
 213   UINT32  Reserved;
 214 } EFI_TABLE_HEADER;
 215
 216 //
 217 // possible caching types for the memory range
 218 //
 219 #define EFI_MEMORY_UC   0x0000000000000001
 220 #define EFI_MEMORY_WC   0x0000000000000002
 221 #define EFI_MEMORY_WT   0x0000000000000004
 222 #define EFI_MEMORY_WB   0x0000000000000008
 223 #define EFI_MEMORY_UCE  0x0000000000000010
 224
 225 //
 226 // physical memory protection on range
 227 //
 228 #define EFI_MEMORY_WP 0x0000000000001000
 229 #define EFI_MEMORY_RP 0x0000000000002000
 230 #define EFI_MEMORY_XP 0x0000000000004000
 231
 232 //
 233 // range requires a runtime mapping
 234 //
 235 #define EFI_MEMORY_RUNTIME  0x8000000000000000ULL
 236
 237 typedef UINT64  EFI_PHYSICAL_ADDRESS;
 238 typedef UINT64  EFI_VIRTUAL_ADDRESS;
 239
 240 #define EFI_MEMORY_DESCRIPTOR_VERSION 1
 241 typedef struct {
 242   UINT32                Type;
 243   UINT32                Pad;
 244   EFI_PHYSICAL_ADDRESS  PhysicalStart;
 245   EFI_VIRTUAL_ADDRESS   VirtualStart;
 246   UINT64                NumberOfPages;
 247   UINT64                Attribute;
 248 } EFI_MEMORY_DESCRIPTOR;
 249
 250 //
 251 // The EFI memory allocation functions work in units of EFI_PAGEs that are
 252 // 4K. This should in no way be confused with the page size of the processor.
 253 // An EFI_PAGE is just the quanta of memory in EFI.
 254 //
 255 #define EFI_PAGE_SIZE         4096
 256 #define EFI_PAGE_MASK         0xFFF
 257 #define EFI_PAGE_SHIFT        12
 258
 259 #define EFI_SIZE_TO_PAGES(a)  (((a) >> EFI_PAGE_SHIFT) + (((a) & EFI_PAGE_MASK) ? 1 : 0))
 260
 261 #define EFI_PAGES_TO_SIZE(a)   ( (a) << EFI_PAGE_SHIFT)
 262
 263 //
 264 //  ALIGN_POINTER - aligns a pointer to the lowest boundry
 265 //
 266 #define ALIGN_POINTER(p, s) ((VOID *) (p + ((s - ((UINTN) p)) & (s - 1))))
 267
 268 //
 269 //  ALIGN_VARIABLE - aligns a variable up to the next natural boundry for int size of a processor
 270 //
 271 #define ALIGN_VARIABLE(Value, Adjustment) \
 272   (UINTN) Adjustment = 0; \
 273   if ((UINTN) Value % sizeof (UINTN)) { \
 274     (UINTN) Adjustment = sizeof (UINTN) - ((UINTN) Value % sizeof (UINTN)); \
 275   } \
 276   Value = (UINTN) Value + (UINTN) Adjustment
 277
 278 //
 279 //  EFI_FIELD_OFFSET - returns the byte offset to a field within a structure
 280 //
 281 #define EFI_FIELD_OFFSET(TYPE,Field) ((UINTN)(&(((TYPE *) 0)->Field)))
 282
 283 //
 284 //  CONTAINING_RECORD - returns a pointer to the structure
 285 //      from one of it's elements.
 286 //
 287 #define _CR(Record, TYPE, Field)  ((TYPE *) ((CHAR8 *) (Record) - (CHAR8 *) &(((TYPE *) 0)->Field)))
 288
 289 //
 290 // Define macros to build data structure signatures from characters.
 291 //
 292 #define EFI_SIGNATURE_16(A, B)        ((A) | (B << 8))
 293 #define EFI_SIGNATURE_32(A, B, C, D)  (EFI_SIGNATURE_16 (A, B) | (EFI_SIGNATURE_16 (C, D) << 16))
 294 #define EFI_SIGNATURE_64(A, B, C, D, E, F, G, H) \
 295     (EFI_SIGNATURE_32 (A, B, C, D) | ((UINT64) (EFI_SIGNATURE_32 (E, F, G, H)) << 32))
 296
 297 #endif