ixosalmemaccess.h

有关ARM开发板上的IXP400网络驱动程序的源码以。

	return (UINT16) (auxVal >> 16);
    else
	return (UINT16) (auxVal & 0xffff);
#else
    return *wCookie;
#endif
}

static __inline__ UINT8
ixOsalWinCEReadBCookie (volatile UINT8 * bCookie)
{
#if 0
    UINT32 auxVal = *((volatile UINT32 *) bCookie);
    return (UINT8) ((auxVal >> (3 - (((unsigned) bCookie & 3) << 3)) & 0xff));
#else
    return *bCookie;
#endif
}

static __inline__ void
ixOsalWinCEWriteLCookie (volatile UINT32 * lCookie, UINT32 lVal)
{
    *lCookie = lVal;
}

static __inline__ void
ixOsalWinCEWriteWCookie (volatile UINT16 * wCookie, UINT16 wVal)
{
#if 0
    volatile UINT32 *auxCookie =
	(volatile UINT32 *) ((unsigned) wCookie & ~3);
    if ((unsigned) wCookie & 3)
    {
	*auxCookie &= 0xffff;
	*auxCookie |= (UINT32) wVal << 16;
    }
    else
    {
	*auxCookie &= ~0xffff;
	*auxCookie |= (UINT32) wVal & 0xffff;
    }
#else
    *wCookie = wVal;
#endif
}

static __inline__ void
ixOsalWinCEWriteBCookie (volatile UINT8 * bCookie, UINT8 bVal)
{
#if 0
    volatile UINT32 *auxCookie =
	(volatile UINT32 *) ((unsigned) bCookie & ~3);
    *auxCookie &= 0xff << (3 - (((unsigned) bCookie & 3) << 3));
    *auxCookie |= (UINT32) bVal << (3 - (((unsigned) bCookie & 3) << 3));
#else
    *bCookie = bVal;
#endif
}


#define IX_OSAL_READ_LONG_COOKIE(wCookie)           (ixOsalWinCEReadLCookie(wCookie))
#define IX_OSAL_READ_SHORT_COOKIE(sCookie)          (ixOsalWinCEReadWCookie(sCookie))
#define IX_OSAL_READ_BYTE_COOKIE(bCookie)           (ixOsalWinCEReadBCookie(bCookie))
#define IX_OSAL_WRITE_LONG_COOKIE(wCookie, wData)   (ixOsalWinCEWriteLCookie(wCookie, wData))
#define IX_OSAL_WRITE_SHORT_COOKIE(sCookie, sData)  (ixOsalWinCEWriteWCookie(sCookie, sData))
#define IX_OSAL_WRITE_BYTE_COOKIE(bCookie, bData)   (ixOsalWinCEWriteBCookie(bCookie, bData))

#endif /* wince */

#if defined (__vxworks) || (defined (__linux) && defined (IX_OSAL_STATIC_MEMORY_MAP)) || \
                           (defined (__wince) && defined (IX_OSAL_STATIC_MEMORY_MAP))

#define IX_OSAL_READ_LONG_IO(wAddr)            IX_OSAL_READ_LONG_RAW(wAddr)
#define IX_OSAL_READ_SHORT_IO(sAddr)           IX_OSAL_READ_SHORT_RAW(sAddr)
#define IX_OSAL_READ_BYTE_IO(bAddr)            IX_OSAL_READ_BYTE_RAW(bAddr)
#define IX_OSAL_WRITE_LONG_IO(wAddr, wData)    IX_OSAL_WRITE_LONG_RAW(wAddr, wData)
#define IX_OSAL_WRITE_SHORT_IO(sAddr, sData)   IX_OSAL_WRITE_SHORT_RAW(sAddr, sData)
#define IX_OSAL_WRITE_BYTE_IO(bAddr, bData)    IX_OSAL_WRITE_BYTE_RAW(bAddr, bData)

#elif (defined (__linux) && !defined (IX_OSAL_STATIC_MEMORY_MAP)) || \
      (defined (__wince) && !defined (IX_OSAL_STATIC_MEMORY_MAP))

#ifndef __wince
#include <asm/io.h>
#endif /* ndef __wince */

#define IX_OSAL_READ_LONG_IO(wAddr)            IX_OSAL_READ_LONG_COOKIE(wAddr)
#define IX_OSAL_READ_SHORT_IO(sAddr)           IX_OSAL_READ_SHORT_COOKIE(sAddr)
#define IX_OSAL_READ_BYTE_IO(bAddr)            IX_OSAL_READ_BYTE_COOKIE(bAddr)
#define IX_OSAL_WRITE_LONG_IO(wAddr, wData)    IX_OSAL_WRITE_LONG_COOKIE(wAddr, wData)
#define IX_OSAL_WRITE_SHORT_IO(sAddr, sData)   IX_OSAL_WRITE_SHORT_COOKIE(sAddr, sData)
#define IX_OSAL_WRITE_BYTE_IO(bAddr, bData)    IX_OSAL_WRITE_BYTE_COOKIE(bAddr, bData)

#endif

/* Define BE macros */
#define IX_OSAL_READ_LONG_BE(wAddr)          IX_OSAL_BE_BUSTOXSL(IX_OSAL_READ_LONG_IO((volatile UINT32 *) (wAddr) ))
#define IX_OSAL_READ_SHORT_BE(sAddr)         IX_OSAL_BE_BUSTOXSS(IX_OSAL_READ_SHORT_IO((volatile UINT16 *) (sAddr) ))
#define IX_OSAL_READ_BYTE_BE(bAddr)          IX_OSAL_BE_BUSTOXSB(IX_OSAL_READ_BYTE_IO((volatile UINT8 *) (bAddr) ))
#define IX_OSAL_WRITE_LONG_BE(wAddr, wData)  IX_OSAL_WRITE_LONG_IO((volatile UINT32 *) (wAddr), IX_OSAL_BE_XSTOBUSL((UINT32) (wData) ))
#define IX_OSAL_WRITE_SHORT_BE(sAddr, sData) IX_OSAL_WRITE_SHORT_IO((volatile UINT16 *) (sAddr), IX_OSAL_BE_XSTOBUSS((UINT16) (sData) ))
#define IX_OSAL_WRITE_BYTE_BE(bAddr, bData)  IX_OSAL_WRITE_BYTE_IO((volatile UINT8 *) (bAddr), IX_OSAL_BE_XSTOBUSB((UINT8) (bData) ))

/* Define LE AC macros */
#define IX_OSAL_READ_LONG_LE_AC(wAddr)          IX_OSAL_READ_LONG_IO((volatile UINT32 *) IX_OSAL_LE_AC_BUSTOXSL((UINT32) (wAddr) ))
#define IX_OSAL_READ_SHORT_LE_AC(sAddr)         IX_OSAL_READ_SHORT_IO((volatile UINT16 *) IX_OSAL_LE_AC_BUSTOXSS((UINT32) (sAddr) ))
#define IX_OSAL_READ_BYTE_LE_AC(bAddr)          IX_OSAL_READ_BYTE_IO((volatile UINT8 *) IX_OSAL_LE_AC_BUSTOXSB((UINT32) (bAddr) ))
#define IX_OSAL_WRITE_LONG_LE_AC(wAddr, wData)  IX_OSAL_WRITE_LONG_IO((volatile UINT32 *) IX_OSAL_LE_AC_XSTOBUSL((UINT32) (wAddr) ), (UINT32) (wData))
#define IX_OSAL_WRITE_SHORT_LE_AC(sAddr, sData) IX_OSAL_WRITE_SHORT_IO((volatile UINT16 *) IX_OSAL_LE_AC_XSTOBUSS((UINT32) (sAddr) ), (UINT16) (sData))
#define IX_OSAL_WRITE_BYTE_LE_AC(bAddr, bData)  IX_OSAL_WRITE_BYTE_IO((volatile UINT8 *) IX_OSAL_LE_AC_XSTOBUSB((UINT32) (bAddr) ), (UINT8) (bData))


/* Inline functions are required here to avoid reading the same I/O location 2 or 4 times for the byte swap */
#ifdef _DIAB_TOOL
#pragma inline ixOsalDataCoherentLongReadSwap
static UINT32
#else
static __inline__ UINT32
#endif
ixOsalDataCoherentLongReadSwap (volatile UINT32 * wAddr)
{
    UINT32 wData = IX_OSAL_READ_LONG_IO (wAddr);
    return IX_OSAL_LE_DC_BUSTOXSL (wData);
}

#ifdef _DIAB_TOOL
#pragma inline ixOsalDataCoherentShortReadSwap
static UINT32
#else
static __inline__ UINT16
#endif
ixOsalDataCoherentShortReadSwap (volatile UINT16 * sAddr)
{
    UINT16 sData = IX_OSAL_READ_SHORT_IO (sAddr);
    return IX_OSAL_LE_DC_BUSTOXSS (sData);
}

#ifdef _DIAB_TOOL
#pragma inline ixOsalDataCoherentLongWriteSwap
static UINT32
#else
static __inline__ void
#endif
ixOsalDataCoherentLongWriteSwap (volatile UINT32 * wAddr, UINT32 wData)
{
    wData = IX_OSAL_LE_DC_XSTOBUSL (wData);
    IX_OSAL_WRITE_LONG_IO (wAddr, wData);
}

#ifdef _DIAB_TOOL
#pragma inline ixOsalDataCoherentShortWriteSwap
static UINT32
#else
static __inline__ void
#endif
ixOsalDataCoherentShortWriteSwap (volatile UINT16 * sAddr, UINT16 sData)
{
    sData = IX_OSAL_LE_DC_XSTOBUSS (sData);
    IX_OSAL_WRITE_SHORT_IO (sAddr, sData);
}

/* Define LE DC macros */

#define IX_OSAL_READ_LONG_LE_DC(wAddr)          ixOsalDataCoherentLongReadSwap((volatile UINT32 *) (wAddr) )
#define IX_OSAL_READ_SHORT_LE_DC(sAddr)         ixOsalDataCoherentShortReadSwap((volatile UINT16 *) (sAddr) )
#define IX_OSAL_READ_BYTE_LE_DC(bAddr)          IX_OSAL_LE_DC_BUSTOXSB(IX_OSAL_READ_BYTE_IO((volatile UINT8 *) (bAddr) ))
#define IX_OSAL_WRITE_LONG_LE_DC(wAddr, wData)  ixOsalDataCoherentLongWriteSwap((volatile UINT32 *) (wAddr), (UINT32) (wData))
#define IX_OSAL_WRITE_SHORT_LE_DC(sAddr, sData) ixOsalDataCoherentShortWriteSwap((volatile UINT16 *) (sAddr), (UINT16) (sData))
#define IX_OSAL_WRITE_BYTE_LE_DC(bAddr, bData)  IX_OSAL_WRITE_BYTE_IO((volatile UINT8 *) (bAddr), IX_OSAL_LE_DC_XSTOBUSB((UINT8) (bData)))

#if defined (IX_OSAL_BE_MAPPING)

#define IX_OSAL_READ_LONG(wAddr)            IX_OSAL_READ_LONG_BE(wAddr) 
#define IX_OSAL_READ_SHORT(sAddr)	        IX_OSAL_READ_SHORT_BE(sAddr) 
#define IX_OSAL_READ_BYTE(bAddr)	        IX_OSAL_READ_BYTE_BE(bAddr) 
#define IX_OSAL_WRITE_LONG(wAddr, wData) 	IX_OSAL_WRITE_LONG_BE(wAddr, wData)
#define IX_OSAL_WRITE_SHORT(sAddr, sData)	IX_OSAL_WRITE_SHORT_BE(sAddr, sData)
#define IX_OSAL_WRITE_BYTE(bAddr, bData)	IX_OSAL_WRITE_BYTE_BE(bAddr, bData)

#elif defined (IX_OSAL_LE_AC_MAPPING)

#define IX_OSAL_READ_LONG(wAddr)            IX_OSAL_READ_LONG_LE_AC(wAddr) 
#define IX_OSAL_READ_SHORT(sAddr)	        IX_OSAL_READ_SHORT_LE_AC(sAddr) 
#define IX_OSAL_READ_BYTE(bAddr)	        IX_OSAL_READ_BYTE_LE_AC(bAddr) 
#define IX_OSAL_WRITE_LONG(wAddr, wData) 	IX_OSAL_WRITE_LONG_LE_AC(wAddr, wData)
#define IX_OSAL_WRITE_SHORT(sAddr, sData)	IX_OSAL_WRITE_SHORT_LE_AC(sAddr, sData)
#define IX_OSAL_WRITE_BYTE(bAddr, bData)	IX_OSAL_WRITE_BYTE_LE_AC(bAddr, bData)

#elif defined (IX_OSAL_LE_DC_MAPPING)

#define IX_OSAL_READ_LONG(wAddr)            IX_OSAL_READ_LONG_LE_DC(wAddr) 
#define IX_OSAL_READ_SHORT(sAddr)	        IX_OSAL_READ_SHORT_LE_DC(sAddr) 
#define IX_OSAL_READ_BYTE(bAddr)	        IX_OSAL_READ_BYTE_LE_DC(bAddr) 
#define IX_OSAL_WRITE_LONG(wAddr, wData) 	IX_OSAL_WRITE_LONG_LE_DC(wAddr, wData)
#define IX_OSAL_WRITE_SHORT(sAddr, sData)	IX_OSAL_WRITE_SHORT_LE_DC(sAddr, sData)
#define IX_OSAL_WRITE_BYTE(bAddr, bData)	IX_OSAL_WRITE_BYTE_LE_DC(bAddr, bData)

#endif   /* End of BE and LE coherency mode switch */


/* Reads/writes to and from memory shared with NPEs - depends on the SDRAM coherency */

#if defined (IX_SDRAM_BE)

#define IX_OSAL_READ_BE_SHARED_LONG(wAddr)            IX_OSAL_READ_LONG_RAW(wAddr)
#define IX_OSAL_READ_BE_SHARED_SHORT(sAddr)           IX_OSAL_READ_SHORT_RAW(sAddr)
#define IX_OSAL_READ_BE_SHARED_BYTE(bAddr)            IX_OSAL_READ_BYTE_RAW(bAddr)

#define IX_OSAL_WRITE_BE_SHARED_LONG(wAddr, wData)    IX_OSAL_WRITE_LONG_RAW(wAddr, wData)
#define IX_OSAL_WRITE_BE_SHARED_SHORT(sAddr, sData)   IX_OSAL_WRITE_SHORT_RAW(sAddr, sData)
#define IX_OSAL_WRITE_BE_SHARED_BYTE(bAddr, bData)    IX_OSAL_WRITE_BYTE_RAW(bAddr, bData)

#define IX_OSAL_SWAP_BE_SHARED_LONG(wData)            (wData)
#define IX_OSAL_SWAP_BE_SHARED_SHORT(sData)           (sData)
#define IX_OSAL_SWAP_BE_SHARED_BYTE(bData)            (bData)

#elif defined (IX_SDRAM_LE_ADDRESS_COHERENT)

#define IX_OSAL_READ_BE_SHARED_LONG(wAddr)            IX_OSAL_READ_LONG_RAW(wAddr)
#define IX_OSAL_READ_BE_SHARED_SHORT(sAddr)           IX_OSAL_READ_SHORT_RAW(IX_OSAL_SWAP_SHORT_ADDRESS(sAddr))
#define IX_OSAL_READ_BE_SHARED_BYTE(bAddr)            IX_OSAL_READ_BYTE_RAW(IX_OSAL_SWAP_BYTE_ADDRESS(bAddr))

#define IX_OSAL_WRITE_BE_SHARED_LONG(wAddr, wData)    IX_OSAL_WRITE_LONG_RAW(wAddr, wData)
#define IX_OSAL_WRITE_BE_SHARED_SHORT(sAddr, sData)   IX_OSAL_WRITE_SHORT_RAW(IX_OSAL_SWAP_SHORT_ADDRESS(sAddr), sData)
#define IX_OSAL_WRITE_BE_SHARED_BYTE(bAddr, bData)    IX_OSAL_WRITE_BYTE_RAW(IX_OSAL_SWAP_BYTE_ADDRESS(bAddr), bData)

#define IX_OSAL_SWAP_BE_SHARED_LONG(wData)            (wData)
#define IX_OSAL_SWAP_BE_SHARED_SHORT(sData)           (sData)
#define IX_OSAL_SWAP_BE_SHARED_BYTE(bData)            (bData)

#elif defined (IX_SDRAM_LE_DATA_COHERENT)

#define IX_OSAL_READ_BE_SHARED_LONG(wAddr)            IX_OSAL_SWAP_LONG(IX_OSAL_READ_LONG_RAW(wAddr))
#define IX_OSAL_READ_BE_SHARED_SHORT(sAddr)           IX_OSAL_SWAP_SHORT(IX_OSAL_READ_SHORT_RAW(sAddr))
#define IX_OSAL_READ_BE_SHARED_BYTE(bAddr)            IX_OSAL_READ_BYTE_RAW(bAddr)

#define IX_OSAL_WRITE_BE_SHARED_LONG(wAddr, wData)    IX_OSAL_WRITE_LONG_RAW(wAddr, IX_OSAL_SWAP_LONG(wData))
#define IX_OSAL_WRITE_BE_SHARED_SHORT(sAddr, sData)   IX_OSAL_WRITE_SHORT_RAW(sAddr, IX_OSAL_SWAP_SHORT(sData))
#define IX_OSAL_WRITE_BE_SHARED_BYTE(bAddr, bData)    IX_OSAL_WRITE_BYTE_RAW(bAddr, bData)

#define IX_OSAL_SWAP_BE_SHARED_LONG(wData)            IX_OSAL_SWAP_LONG(wData)
#define IX_OSAL_SWAP_BE_SHARED_SHORT(sData)           IX_OSAL_SWAP_SHORT(sData)

#endif


#define IX_OSAL_COPY_BE_SHARED_LONG_ARRAY(wDestAddr, wSrcAddr, wCount) \
  { \
    UINT32 i; \
    \
    for ( i = 0 ; i < wCount ; i++ ) \
    { \
      * (((UINT32 *) wDestAddr) + i) = IX_OSAL_READ_BE_SHARED_LONG(((UINT32 *) wSrcAddr) + i); \
    }; \
  };

#endif /* IxOsalMemAccess_H */