/*
 * Copyright (c) 2001
 *  Politecnico di Torino.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that: (1) source code distributions
 * retain the above copyright notice and this paragraph in its entirety, (2)
 * distributions including binary code include the above copyright notice and
 * this paragraph in its entirety in the documentation or other materials
 * provided with the distribution, and (3) all advertising materials mentioning
 * features or use of this software display the following acknowledgement:
 * ``This product includes software developed by the Politecnico
 * di Torino, and its contributors.'' Neither the name of
 * the University nor the names of its contributors may be used to endorse
 * or promote products derived from this software without specific prior
 * written permission.
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 */

#ifndef __memory_t
#define __memory_t

#define     uint8   UCHAR
#define     int8    CHAR
#define     uint16  USHORT
#define     int16   SHORT
#define     uint32  ULONG
#define     int32   LONG
#define     uint64  ULONGLONG
#define     int64   LONGLONG

/*memory type*/
typedef struct __MEM_TYPE
{
    uint8 *buffer;
    uint32 size;
}  MEM_TYPE, *PMEM_TYPE;

#define LONG_AT(base,offset) (*(int32*)((uint8*)base+(uint32)offset))

#define ULONG_AT(base,offset) (*(uint32*)((uint8*)base+(uint32)offset))

#define SHORT_AT(base,offset) (*(int16*)((uint8*)base+(uint32)offset))

#define USHORT_AT(base,offset) (*(uint16*)((uint8*)base+(uint32)offset))

#ifdef __GNUC__
#define __inline inline
#define _USE_SW_FUNCS_
#endif

#ifdef _USE_SW_FUNCS_

inline int32 SW_LONG_AT(void *b, uint32 c);
inline uint32 SW_ULONG_AT(void *b, uint32 c);
inline int16 SW_SHORT_AT(void *b, uint32 os);
inline uint16 SW_USHORT_AT(void *b, uint32 os);
inline VOID SW_ULONG_ASSIGN(void *dst, uint32 src);

#else /*_USE_SW_FUNCS_*/

__inline int32 SW_LONG_AT(void *b, uint32 c)
{
    return  ((int32)*((uint8 *)b+c)<<24|
         (int32)*((uint8 *)b+c+1)<<16|
         (int32)*((uint8 *)b+c+2)<<8|
         (int32)*((uint8 *)b+c+3)<<0);
}

__inline uint32 SW_ULONG_AT(void *b, uint32 c)
{
    return  ((uint32)*((uint8 *)b+c)<<24|
         (uint32)*((uint8 *)b+c+1)<<16|
         (uint32)*((uint8 *)b+c+2)<<8|
         (uint32)*((uint8 *)b+c+3)<<0);
}

__inline int16 SW_SHORT_AT(void *b, uint32 os)
{
    return ((int16)
        ((int16)*((uint8 *)b+os+0)<<8|
         (int16)*((uint8 *)b+os+1)<<0));
}

__inline uint16 SW_USHORT_AT(void *b, uint32 os)
{
    return ((uint16)
        ((uint16)*((uint8 *)b+os+0)<<8|
         (uint16)*((uint8 *)b+os+1)<<0));
}

__inline VOID SW_ULONG_ASSIGN(void *dst, uint32 src)
{
    *((uint8*)dst+0)=*((uint8*)&src+3);
    *((uint8*)dst+1)=*((uint8*)&src+2);
    *((uint8*)dst+2)=*((uint8*)&src+1);
    *((uint8*)dst+3)=*((uint8*)&src+0);

}

#endif /*_USE_SW_FUNCS_*/

#ifdef WIN_NT_DRIVER

#define ALLOCATE_MEMORY(dest,type,amount) \
      (dest)=ExAllocatePool(NonPagedPool,sizeof(type)*(amount));
#define ALLOCATE_ZERO_MEMORY(dest,type,amount) \
    { \
        (dest)=ExAllocatePool(NonPagedPool,sizeof(type)*(amount)); \
        if ((dest)!=NULL) \
            RtlZeroMemory((dest),sizeof(type)*(amount)); \
    }   

#define FREE_MEMORY(dest) ExFreePool(dest);
#define ZERO_MEMORY(dest,amount) RtlZeroMemory(dest,amount);
#define COPY_MEMORY(dest,src,amount) RtlCopyMemory(dest,src,amount);

#endif /*WIN_NT_DRIVER*/


#endif