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[/] [mb-jpeg/] [tags/] [STEP1_1/] [microblaze_0/] [include/] [xenv_none.h] - Rev 66
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/****************************************************************************** * * 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. * </pre> * * ******************************************************************************/ #ifndef XENV_NONE_H /* prevent circular inclusions */ #define XENV_NONE_H /* by using protection macros */ /***************************** Include Files *********************************/ /*****************************************************************************/ /** * * 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 None. * *****************************************************************************/ #define XENV_USLEEP(delay) #endif /* end of protection macro */