/********************************************************************************       XILINX IS PROVIDING THIS DESIGN, CODE, OR INFORMATION "AS IS"*       AS A COURTESY TO YOU, SOLELY FOR USE IN DEVELOPING PROGRAMS AND*       SOLUTIONS FOR XILINX DEVICES.  BY PROVIDING THIS DESIGN, CODE,*       OR INFORMATION AS ONE POSSIBLE IMPLEMENTATION OF THIS FEATURE,*       APPLICATION OR STANDARD, XILINX IS MAKING NO REPRESENTATION*       THAT THIS IMPLEMENTATION IS FREE FROM ANY CLAIMS OF INFRINGEMENT,*       AND YOU ARE RESPONSIBLE FOR OBTAINING ANY RIGHTS YOU MAY REQUIRE*       FOR YOUR IMPLEMENTATION.  XILINX EXPRESSLY DISCLAIMS ANY*       WARRANTY WHATSOEVER WITH RESPECT TO THE ADEQUACY OF THE*       IMPLEMENTATION, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OR*       REPRESENTATIONS THAT THIS IMPLEMENTATION IS FREE FROM CLAIMS OF*       INFRINGEMENT, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS*       FOR A PARTICULAR PURPOSE.**       (c) Copyright 2002 Xilinx Inc.*       All rights reserved.*******************************************************************************//*****************************************************************************//**** @file xenv_none.h** Defines common services specified by xenv.h. Some of these services are* defined as not performing any action. The implementation of these services* are left to the user.** @note** This file is not intended to be included directly by driver code. Instead,* the generic xenv.h file is intended to be included by driver code.** <pre>* MODIFICATION HISTORY:** Ver   Who  Date     Changes* ----- ---- -------- -----------------------------------------------* 1.00a rmm  03/21/02 First release* 1.00a xd   11/03/04 Improved support for doxygen.* 1.00a rmm  01/24/06 Implemented XENV_USLEEP. Assume implementation is being*                     used under Xilinx standalone BSP.* </pre>********************************************************************************/#ifndef XENV_NONE_H /* prevent circular inclusions */#define XENV_NONE_H /* by using protection macros */#ifdef __cplusplusextern "C" {#endif/***************************** Include Files *********************************//* If PowerPC, include sleep for the delay macro */#ifdef __PPC__#include "sleep.h"#endif/*****************************************************************************//** * * Copies a non-overlapping block of memory. * * @param   DestPtr is the destination address to copy data to. * @param   SrcPtr is the source address to copy data from. * @param   Bytes is the number of bytes to copy. * * @return  None. * * @note * * Signature: void XENV_MEM_COPY(void *DestPtr, void *SrcPtr, unsigned Bytes) * *****************************************************************************/#define XENV_MEM_COPY(DestPtr, SrcPtr, Bytes)                     \{                                                                 \    char *Dest = (char*)(DestPtr);                                \    char *Src  = (char*)(SrcPtr);                                 \    unsigned BytesLeft = (Bytes);                                 \                                                                  \    while (BytesLeft--) *Dest++ = *Src++;                         \}/*****************************************************************************//** * * Fills an area of memory with constant data. * * @param   DestPtr is the destination address to set. * @param   Data contains the value to set. * @param   Bytes is the number of bytes to set. * * @return  None. * * @note * * Signature: void XENV_MEM_FILL(void *DestPtr, char Data, unsigned Bytes) * *****************************************************************************/#define XENV_MEM_FILL(DestPtr, Data, Bytes)                       \{                                                                 \    char *Dest = (char*)(DestPtr);                                \    char c = (Data);                                              \    unsigned BytesLeft = (Bytes);                                 \                                                                  \    while (BytesLeft--) *Dest++ = c;                              \}/** * A structure that contains a time stamp used by other time stamp macros * defined below. This structure is processor dependent. */typedef int XENV_TIME_STAMP;/*****************************************************************************//** * * Time is derived from the 64 bit PPC timebase register * * @param   StampPtr is the storage for the retrieved time stamp. * * @return  None. * * @note * * Signature: void XENV_TIME_STAMP_GET(XTIME_STAMP *StampPtr) * <br><br> * This macro must be implemented by the user. * *****************************************************************************/#define XENV_TIME_STAMP_GET(StampPtr)/*****************************************************************************//** * * This macro is not yet implemented and always returns 0. * * @param   Stamp1Ptr is the first sampled time stamp. * @param   Stamp2Ptr is the second sampled time stamp. * * @return  0 * * @note * * This macro must be implemented by the user. * *****************************************************************************/#define XENV_TIME_STAMP_DELTA_US(Stamp1Ptr, Stamp2Ptr)     (0)/*****************************************************************************//** * * This macro is not yet implemented and always returns 0. * * @param   Stamp1Ptr is the first sampled time stamp. * @param   Stamp2Ptr is the second sampled time stamp. * * @return  0 * * @note * * This macro must be implemented by the user. * *****************************************************************************/#define XENV_TIME_STAMP_DELTA_MS(Stamp1Ptr, Stamp2Ptr)     (0)/*****************************************************************************//** * * XENV_USLEEP(unsigned delay) * * Delay the specified number of microseconds. Not implemented without OS * support. * * @param   delay is the number of microseconds to delay. * * @return  None. * * @note    If PowerPC, use usleep for the sleep macro, otherwise a no-op. * *****************************************************************************/#ifdef __PPC__#define XENV_USLEEP(delay) usleep(delay)#else#define XENV_USLEEP(delay)#endif#ifdef __cplusplus}#endif#endif            /* end of protection macro */