pciname.cpp

Windows下Hardware直接读写

#include "StdAfx.h"
#include ".\pciname.h"

PCIName::PCIName(void)
: fpPciids(NULL)
, m_startPos(0)
{
}

PCIName::~PCIName(void)
{
}

int PCIName::GetVendorDeviceName(unsigned long vendorId, unsigned long deviceId, char* nameVendor, char* nameDevice)
{
	/*char rBuff[1024] = {0};
	if(fpPciids == NULL)
	{
		fpPciids == fopen("pci.ids", "r");
		if(fpPciids == NULL)
			return -1;
	}

	//loop up the vendorId
	fgets(rBuff, 1024, fpPciids);
	*/
	CStdioFile file;   
	CString strLine;
    CString chVendor;
	CString strVendorName;
	CString chDevice;
	CString strDeviceName;
	BOOL getVendor = false;

	if(!file.Open("pci.ids", CFile::modeRead))
	{
		return -1;
	}
	while(file.ReadString(strLine))
	{
		//get one line
		if(strLine.GetAt(0) == '#')
		{
			//comments, continue
			continue;
		}
		if(strLine.GetAt(0) == '\t' && strLine.GetAt(1) == '\t')
		{
			//subsystem
			continue;
		}
		//should be vendor id and vendor name
		//sscanf(strLine.GetBuffer(0), "%4s  %s", chVendor, nameVendor);
		chVendor = strLine.Left(4);
		if(vendorId == _tcstoul(chVendor, 0, 16))
		{
			strVendorName = strLine.Mid(4);
			strncpy(nameVendor, strVendorName.GetBuffer(0), 256);
			getVendor = true; 
			continue;
		}
		if(getVendor)
		{
			if(strLine.GetAt(0) == '\t')
			{
				//sscanf(strLine.GetBuffer(0), "%s  %s", chDevice, nameDevice);
				chDevice = strLine.Mid(1, 4);
				if(deviceId == _tcstoul(chDevice, 0, 16))
				{
					strDeviceName = strLine.Mid(7);
					strncpy(nameDevice, strDeviceName.GetBuffer(0), 256);
					file.Close();
					return 0;
				}
			}
		}
	}
	file.Close();
	return -1;
}
//return the register description
int PCIName::GetRegDes(int offset, char* desString)
{
	CString strLine;
	CString strOffset;
	CString strDes;
	if(!this->fileRegDes.Open("RegDes.txt", CFile::modeRead))
	{
		return -1;
	}
	while(fileRegDes.ReadString(strLine))
	{
		 if(strLine.GetAt(0) == '#' || strLine.GetAt(0) == ';')
		{
			//comments, continue
			continue;
		}
		strOffset = strLine.Left(2);
		if(offset == _tcstoul(strOffset, 0, 16))
		{
			strncpy(desString, strLine.GetBuffer(0) + 3, 256);
			fileRegDes.Close();
			return 0;
		}
		
	}
	fileRegDes.Close();
	return -1;
}