reactos/drivers/net/npf/memory_t.h

   1 /*
   2  * Copyright (c) 2001
   3  *  Politecnico di Torino.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that: (1) source code distributions
   7  * retain the above copyright notice and this paragraph in its entirety, (2)
   8  * distributions including binary code include the above copyright notice and
   9  * this paragraph in its entirety in the documentation or other materials
  10  * provided with the distribution, and (3) all advertising materials mentioning
  11  * features or use of this software display the following acknowledgement:
  12  * ``This product includes software developed by the Politecnico
  13  * di Torino, and its contributors.'' Neither the name of
  14  * the University nor the names of its contributors may be used to endorse
  15  * or promote products derived from this software without specific prior
  16  * written permission.
  17  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
  18  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
  19  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  20  */
  21
  22 #ifndef __memory_t
  23 #define __memory_t
  24
  25 #define     uint8   UCHAR
  26 #define     int8    CHAR
  27 #define     uint16  USHORT
  28 #define     int16   SHORT
  29 #define     uint32  ULONG
  30 #define     int32   LONG
  31 #define     uint64  ULONGLONG
  32 #define     int64   LONGLONG
  33
  34 /*memory type*/
  35 typedef struct __MEM_TYPE
  36 {
  37     uint8 *buffer;
  38     uint32 size;
  39 }  MEM_TYPE, *PMEM_TYPE;
  40
  41 #define LONG_AT(base,offset) (*(int32*)((uint8*)base+(uint32)offset))
  42
  43 #define ULONG_AT(base,offset) (*(uint32*)((uint8*)base+(uint32)offset))
  44
  45 #define SHORT_AT(base,offset) (*(int16*)((uint8*)base+(uint32)offset))
  46
  47 #define USHORT_AT(base,offset) (*(uint16*)((uint8*)base+(uint32)offset))
  48
  49 #ifdef __GNUC__
  50 #define __inline inline
  51 #define _USE_SW_FUNCS_
  52 #endif
  53
  54 #ifdef _USE_SW_FUNCS_
  55
  56 inline int32 SW_LONG_AT(void *b, uint32 c);
  57 inline uint32 SW_ULONG_AT(void *b, uint32 c);
  58 inline int16 SW_SHORT_AT(void *b, uint32 os);
  59 inline uint16 SW_USHORT_AT(void *b, uint32 os);
  60 inline VOID SW_ULONG_ASSIGN(void *dst, uint32 src);
  61
  62 #else /*_USE_SW_FUNCS_*/
  63
  64 __inline int32 SW_LONG_AT(void *b, uint32 c)
  65 {
  66     return  ((int32)*((uint8 *)b+c)<<24|
  67          (int32)*((uint8 *)b+c+1)<<16|
  68          (int32)*((uint8 *)b+c+2)<<8|
  69          (int32)*((uint8 *)b+c+3)<<0);
  70 }
  71
  72 __inline uint32 SW_ULONG_AT(void *b, uint32 c)
  73 {
  74     return  ((uint32)*((uint8 *)b+c)<<24|
  75          (uint32)*((uint8 *)b+c+1)<<16|
  76          (uint32)*((uint8 *)b+c+2)<<8|
  77          (uint32)*((uint8 *)b+c+3)<<0);
  78 }
  79
  80 __inline int16 SW_SHORT_AT(void *b, uint32 os)
  81 {
  82     return ((int16)
  83         ((int16)*((uint8 *)b+os+0)<<8|
  84          (int16)*((uint8 *)b+os+1)<<0));
  85 }
  86
  87 __inline uint16 SW_USHORT_AT(void *b, uint32 os)
  88 {
  89     return ((uint16)
  90         ((uint16)*((uint8 *)b+os+0)<<8|
  91          (uint16)*((uint8 *)b+os+1)<<0));
  92 }
  93
  94 __inline VOID SW_ULONG_ASSIGN(void *dst, uint32 src)
  95 {
  96     *((uint8*)dst+0)=*((uint8*)&src+3);
  97     *((uint8*)dst+1)=*((uint8*)&src+2);
  98     *((uint8*)dst+2)=*((uint8*)&src+1);
  99     *((uint8*)dst+3)=*((uint8*)&src+0);
 100
 101 }
 102
 103 #endif /*_USE_SW_FUNCS_*/
 104
 105 #ifdef WIN_NT_DRIVER
 106
 107 #define ALLOCATE_MEMORY(dest,type,amount) \
 108       (dest)=ExAllocatePool(NonPagedPool,sizeof(type)*(amount));
 109 #define ALLOCATE_ZERO_MEMORY(dest,type,amount) \
 110     { \
 111         (dest)=ExAllocatePool(NonPagedPool,sizeof(type)*(amount)); \
 112         if ((dest)!=NULL) \
 113             RtlZeroMemory((dest),sizeof(type)*(amount)); \
 114     }
 115
 116 #define FREE_MEMORY(dest) ExFreePool(dest);
 117 #define ZERO_MEMORY(dest,amount) RtlZeroMemory(dest,amount);
 118 #define COPY_MEMORY(dest,src,amount) RtlCopyMemory(dest,src,amount);
 119
 120 #endif /*WIN_NT_DRIVER*/
 121
 122
 123 #endif
 124