#include?
#include?“wdc_defs.h“
#include?“wdc_lib.h“
#include?“stdio.h“


#ifdef?_DEBUG
#define?new?DEBUG_NEW
#undef?THIS_FILE
static?char?THIS_FILE[]?=?__FILE__;
#endif

#define?NUMBER_OF_DESCRPT?2

unsigned?int?OnRCSlaveRead（WDC_DEVICE_HANDLE?hDev?int?bar?unsigned?int?addr）{
	unsigned?int?u32Data=0;
	WDC_ReadAddr32（hDev?bar?addr?&u32Data）;
	return?u32Data;
}

void?OnRCSlaveWrite（WDC_DEVICE_HANDLE?hDev?int?bar?unsigned?int?addr?unsigned?int?wdata）{
???WDC_WriteAddr8（hDevbaraddr????wdata????&?0xFF）;
???WDC_WriteAddr8（hDevbaraddr+1??（wdata>>8）??&?0xFF）;
???WDC_WriteAddr8（hDevbaraddr+2??（wdata>>16）?&?0xFF）;
???WDC_WriteAddr8（hDevbaraddr+3??（wdata>>24）?&?0xFF）;
}

//?PC?->?FPGA
void?DMA_Read（WDC_DEVICE_HANDLE?hDev?unsigned?int?target_addr?int?length）{
	int?l;
	clock_t?startend;
	double?accum_time?=?0;
	LARGE_INTEGER?IFreq?IStart?IEnd;
	int?test?=?0;
	int?iteration?=?100;

	int?i;

	unsigned?int?address_offset=0;

	int?data_pattern?=?1;
	int?data_check_option?=?1;
	



	DWORD?dwStatus;
	HANDLE?hWD;
	WD_DMA?dma_buff;

	//?getting?low?level?driver?handle
	hWD?=?WD_Open（）;
	if?（hWD?==?INVALID_HANDLE_VALUE）
		printf（“DMA?read?:?Cannot?open?WinDriver?device“）;


	//?This?cardReg?is?required?to?use?low?level?driver
	WD_CARD_REGISTER?cardReg;
	BZERO（cardReg）;
	cardReg.Card.dwItems?=?1;
	cardReg.Card.Item[0].item?=?ITEM_IO;
	cardReg.Card.Item[0].fNotSharable?=?TRUE;
	cardReg.Card.Item[0].I.IO.dwAddr?=?0x378;
	cardReg.Card.Item[0].I.IO.dwBytes?=?8;
	WD_CardRegister（hWD?&cardReg）;
	if?（cardReg.hCard?==?0）{
		printf（“DMA?read?:?Failed?locking?device“）;
		return;
	}


	//?allocating?the?user?memory?area
	BZERO（dma_buff）;
	dma_buff.dwBytes?=?length?+?32;?//?additional?32byte?will?be?used?to?detect?the?end?of?process.
	//?Set?contiguous?Buffer
	dma_buff.dwOptions?=?DMA_KERNEL_BUFFER_ALLOC?|?DMA_KBUF_BELOW_16M;
	dma_buff.hCard?=?cardReg.hCard;

	dwStatus?=?WD_DMALock（hWD?&dma_buff）;
	if（dwStatus）{
		printf（“DMA?read?:?Failed?to?allocate?memory“）;
		return;
	}

	//?generating?random?data
	DWORD?random_data;
	unsigned?current_time?=?（unsigned）time（NULL）;
	srand（current_time）;
	random_data=rand（）;

	DWORD?*pSBuf;?//?Soft?Buffer
	//?This?is?the?data?send?to?FPGA
	pSBuf=?（DWORD?*）?dma_buff.pUserAddr;
		for?（i?=?0;?i?			if（data_pattern?==?1）{
				random_data=rand（）;
				double?tmp?=?（double）random_data?/?17737;
				DWORD?t?=?tmp?*?0xFFFFFFFF;
				pSBuf[i]?=?t;
			}else
				pSBuf[i]?=?i;
	}


	//?clearing?out?the?location?for?DMA?end?detection
	for?（i?=?length?/?4;?i?			pSBuf[i]?=?0;
	}

	//?Set?up?the?variable?for?DMA?end?detection?at?here.
	DWORD?expected_data?=?pSBuf[32/4?-?1];
	DWORD?read_data?=?pSBuf[（length?+?32）/4?-?1];?//?Not?yet?transmitted?so?it?should?get?0?at?here.


	//?trying?and?check?the?address?translation?path?through
	OnRCSlaveWrite（hDev?2?0x1000?0xFFFFF

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2012-04-21?08:41??altpcie_demo_10.0SP1\
?????文件?????3960912??2011-10-27?08:53??altpcie_demo_10.0SP1\altpcie_demo.exe
?????目錄???????????0??2010-08-17?06:46??altpcie_demo_10.0SP1\JungoDrivers\
?????文件????????4260??2006-11-17?02:04??altpcie_demo_10.0SP1\JungoDrivers\altpcie_perf_demo_e001.inf
?????文件??????????89??2006-11-30?09:06??altpcie_demo_10.0SP1\JungoDrivers\install.bat
?????文件??????102400??2006-08-25?01:43??altpcie_demo_10.0SP1\JungoDrivers\wdapi810.dll
?????文件??????135253??2006-06-06?22:44??altpcie_demo_10.0SP1\JungoDrivers\wdreg.exe
?????文件????????2819??2006-08-15?20:33??altpcie_demo_10.0SP1\JungoDrivers\windrvr6.inf
?????文件??????194200??2006-08-15?20:32??altpcie_demo_10.0SP1\JungoDrivers\windrvr6.sys
?????文件???????32768??2006-10-18?22:28??altpcie_demo_10.0SP1\pci_lib.dll
?????文件????????6419??2012-04-21?09:10??altpcie_demo_10.0SP1\pcie_log.txt
?????文件??????102400??2006-08-25?01:43??altpcie_demo_10.0SP1\wdapi810.dll
?????文件??????102400??2006-10-18?22:29??altpcie_demo_10.0SP1\wdapi811.dll
?????文件?????7332240??2012-10-25?15:49??ug_pci_express.pdf
?????目錄???????????0??2012-10-27?03:27??alt_pcie_qsys_simple_sw\
?????文件???????15054??2011-04-26?17:28??alt_pcie_qsys_simple_sw\altpcie_demo.cpp
?????文件????????4196??2011-04-26?15:25??alt_pcie_qsys_simple_sw\alt_pcie_qsys_simple.inf
?????文件????????2500??2012-10-27?03:27??alt_pcie_qsys_simple_sw\alt_pcie_qsys_simple.wdp
?????文件????????2500??2011-04-26?15:25??alt_pcie_qsys_simple_sw\alt_pcie_qsys_simple.wdp.bak
?????文件?????????887??2011-04-26?15:25??alt_pcie_qsys_simple_sw\alt_pcie_qsys_simple_diag.sln
?????文件???????14848??2011-04-26?17:55??alt_pcie_qsys_simple_sw\alt_pcie_qsys_simple_diag.suo
?????文件????????7297??2011-04-26?17:52??alt_pcie_qsys_simple_sw\alt_pcie_qsys_simple_diag.vcxproj
?????文件?????????143??2011-04-26?15:25??alt_pcie_qsys_simple_sw\alt_pcie_qsys_simple_diag.vcxproj.user
?????文件????????1987??2011-04-26?15:25??alt_pcie_qsys_simple_sw\alt_pcie_qsys_simple_files.txt
?????文件???????18961??2011-04-26?15:25??alt_pcie_qsys_simple_sw\alt_pcie_qsys_simple_lib.c
?????文件????????3735??2011-04-26?15:25??alt_pcie_qsys_simple_sw\alt_pcie_qsys_simple_lib.h
?????文件???????31945??2011-04-26?17:49??alt_pcie_qsys_simple_sw\main.cpp