Source/Include/Common/BaseTypes.h

/** @file
  Processor or Compiler specific defines for all supported processors.

  This file is stand alone self consistent set of definitions. 

  Copyright (c) 2006, Intel Corporation                                                         
  All rights reserved. This program and the accompanying materials                          
  are licensed and made available under the terms and conditions of the BSD License         
  which accompanies this distribution.  The full text of the license may be found at        
  http://opensource.org/licenses/bsd-license.php                                            

  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             

  Module Name:  BaseTypes.h

**/

#ifndef __BASE_TYPES_H__
#define __BASE_TYPES_H__

//
// Include processor specific binding
//
#include <ProcessorBind.h>
#include <stdarg.h>

#define MEMORY_FENCE()  MemoryFence ()
#define BREAKPOINT()    CpuBreakpoint ()
#define DEADLOOP()      CpuDeadLoop ()

typedef struct {
  UINT32  Data1;
  UINT16  Data2;
  UINT16  Data3;
  UINT8   Data4[8];
} GUID;


//
// Modifiers to absract standard types to aid in debug of problems
//
#define CONST     const
#define STATIC    static
#define VOID      void

//
// Modifiers for Data Types used to self document code.
// This concept is borrowed for UEFI specification.
//
#ifndef IN
//
// Some other envirnments use this construct, so #ifndef to prevent
// mulitple definition.
//
#define IN
#define OUT
#define OPTIONAL
#endif

//
// Constants. They may exist in other build structures, so #ifndef them.
//
#ifndef TRUE
//
// BugBug: UEFI specification claims 1 and 0. We are concerned about the 
//  complier portability so we did it this way.
//
#define TRUE  ((BOOLEAN)(1==1))
#endif

#ifndef FALSE
#define FALSE ((BOOLEAN)(0==1))
#endif

#ifndef NULL
#define NULL  ((VOID *) 0)
#endif

//
//  Support for variable length argument lists using the ANSI standard.
//  
//  Since we are using the ANSI standard we used the standard nameing and
//  did not folow the coding convention
//
//  VA_LIST  - typedef for argument list.
//  VA_START (VA_LIST Marker, argument before the ...) - Init Marker for use.
//  VA_END (VA_LIST Marker) - Clear Marker
//  VA_ARG (VA_LIST Marker, var arg size) - Use Marker to get an argumnet from
//    the ... list. You must know the size and pass it in this macro.
//
//  example:
//
//  UINTN
//  ExampleVarArg (
//    IN UINTN  NumberOfArgs,
//    ...
//    )
//  {
//    VA_LIST Marker;
//    UINTN   Index;
//    UINTN   Result;
//
//    //
//    // Initialize the Marker
//    //
//    VA_START (Marker, NumberOfArgs);
//    for (Index = 0, Result = 0; Index < NumberOfArgs; Index++) {
//      //
//      // The ... list is a series of UINTN values, so average them up.
//      //
//      Result += VA_ARG (Marker, UINTN);
//    }
//
//    VA_END (Marker);
//    return Result
//  }
//

#define _INT_SIZE_OF(n) ((sizeof (n) + sizeof (UINTN) - 1) &~(sizeof (UINTN) - 1))

//
// Also support coding convention rules for var arg macros
//
#ifndef VA_START

// typedef CHAR8 *VA_LIST;
// #define VA_START(ap, v) (ap = (VA_LIST) & (v) + _INT_SIZE_OF (v))
// #define VA_ARG(ap, t)   (*(t *) ((ap += _INT_SIZE_OF (t)) - _INT_SIZE_OF (t)))
// #define VA_END(ap)      (ap = (VA_LIST) 0)
// Use the native arguments for tools.
#define VA_START va_start
#define VA_ARG   va_arg
#define VA_END   va_end
#define VA_LIST  va_list

#endif

///
///  CONTAINING_RECORD - returns a pointer to the structure
///      from one of it's elements.
///
#define _CR(Record, TYPE, Field)  ((TYPE *) ((CHAR8 *) (Record) - (CHAR8 *) &(((TYPE *) 0)->Field)))

///
///  ALIGN_POINTER - aligns a pointer to the lowest boundry
///
#define ALIGN_POINTER(p, s) ((VOID *) ((p) + (((s) - ((UINTN) (p))) & ((s) - 1))))

///
///  ALIGN_VARIABLE - aligns a variable up to the next natural boundry for int size of a processor
///
#define ALIGN_VARIABLE(Value, Adjustment) \
  Adjustment = 0U; \
  if ((UINTN) (Value) % sizeof (UINTN)) { \
    (Adjustment) = (UINTN)(sizeof (UINTN) - ((UINTN) (Value) % sizeof (UINTN))); \
  } \
  (Value) = (UINTN)((UINTN) (Value) + (UINTN) (Adjustment))

//
// EFI Error Codes common to all execution phases
//

typedef INTN RETURN_STATUS;

///
/// Set the upper bit to indicate EFI Error.
///
#define ENCODE_ERROR(a)              (MAX_BIT | (a))

#define ENCODE_WARNING(a)            (a)
#define RETURN_ERROR(a)              ((a) < 0)

#define RETURN_SUCCESS               0
#define RETURN_LOAD_ERROR            ENCODE_ERROR (1)
#define RETURN_INVALID_PARAMETER     ENCODE_ERROR (2)
#define RETURN_UNSUPPORTED           ENCODE_ERROR (3)
#define RETURN_BAD_BUFFER_SIZE       ENCODE_ERROR (4)
#define RETURN_BUFFER_TOO_SMALL      ENCODE_ERROR (5)
#define RETURN_NOT_READY             ENCODE_ERROR (6)
#define RETURN_DEVICE_ERROR          ENCODE_ERROR (7)
#define RETURN_WRITE_PROTECTED       ENCODE_ERROR (8)
#define RETURN_OUT_OF_RESOURCES      ENCODE_ERROR (9)
#define RETURN_VOLUME_CORRUPTED      ENCODE_ERROR (10)
#define RETURN_VOLUME_FULL           ENCODE_ERROR (11)
#define RETURN_NO_MEDIA              ENCODE_ERROR (12)
#define RETURN_MEDIA_CHANGED         ENCODE_ERROR (13)
#define RETURN_NOT_FOUND             ENCODE_ERROR (14)
#define RETURN_ACCESS_DENIED         ENCODE_ERROR (15)
#define RETURN_NO_RESPONSE           ENCODE_ERROR (16)
#define RETURN_NO_MAPPING            ENCODE_ERROR (17)
#define RETURN_TIMEOUT               ENCODE_ERROR (18)
#define RETURN_NOT_STARTED           ENCODE_ERROR (19)
#define RETURN_ALREADY_STARTED       ENCODE_ERROR (20)
#define RETURN_ABORTED               ENCODE_ERROR (21)
#define RETURN_ICMP_ERROR            ENCODE_ERROR (22)
#define RETURN_TFTP_ERROR            ENCODE_ERROR (23)
#define RETURN_PROTOCOL_ERROR        ENCODE_ERROR (24)
#define RETURN_INCOMPATIBLE_VERSION  ENCODE_ERROR (25)
#define RETURN_SECURITY_VIOLATION    ENCODE_ERROR (26)
#define RETURN_CRC_ERROR             ENCODE_ERROR (27)
#define RETURN_END_OF_MEDIA          ENCODE_ERROR (28)
#define RETURN_END_OF_FILE           ENCODE_ERROR (31)

#define RETURN_WARN_UNKNOWN_GLYPH    ENCODE_WARNING (1)
#define RETURN_WARN_DELETE_FAILURE   ENCODE_WARNING (2)
#define RETURN_WARN_WRITE_FAILURE    ENCODE_WARNING (3)
#define RETURN_WARN_BUFFER_TOO_SMALL ENCODE_WARNING (4)

typedef UINT64 PHYSICAL_ADDRESS;

#endif