使用DLL連結並以WinIo.sys為Driver讀取CMOS資料

工作上遇到需要以WinIo來Debug一些問題，藉WinIo.sys以釐清是否跟工作用的Driver有相關，在網路上，WinIo已到了3.0版作者Yariv Kaplan，舉個簡單的程式碼透過WinIo.sys來讀取CMOS的資訊。

WinIo內有提供32bit/64bit的WinIo32.sys與WinIo64.sys，至於DLL、LIB則需要下載程式碼自行編譯來產生。

以下舉DLL靜態連結、動態連結與WinIo32.sys使用來對CMOS讀取。

CMOS資料夾內容

靜態DLL連結
直接引用  "winio.h" 所以可以直接使用WinIo.h中的函數，這跟動態DLL連結最大的不同

#include "stdafx.h"
#include "winio.h"

#if defined(_WIN64)
#pragma comment(lib, "64/WinIo")//64/WinIo裡面存放64bit WinIo.lib
#elif defined(_WIN32)
#pragma comment(lib, "32/WinIo")//32/WinIo裡面存放32bit WinIo.lib
#endif

int main(int argc, TCHAR* argv[])
{
 BOOL bRet = FALSE;
 DWORD dwTemp = 0;

 bRet = InitializeWinIo();
 if (!bRet) 
 {
  printf("Error during initialization of WinIo. %08X\n", GetLastError()); 
  return bRet;
 }
 
 SetPortVal(0x70, atoi(argv[1]), 1);
 GetPortVal(0x71, &dwTemp, 1);
 printf("%08X\n", dwTemp);

 bRet = RemoveWinIoDriver();
 ShutdownWinIo (); 
 return bRet;
}

執行結果

動態DLL連結
可不需要引用 "winio.h" 即可使用WinIo.h中的函數，但要知道DLL存放位置

#include "stdafx.h"

typedef bool (WINAPI   *  DLL_InitializeWinIo)();
DLL_InitializeWinIo InitializeWinIo;
typedef bool (WINAPI   *  DLL_RemoveWinIoDriver)();
DLL_RemoveWinIoDriver RemoveWinIoDriver;
typedef void (WINAPI   *  DLL_ShutdownWinIo)();
DLL_ShutdownWinIo ShutdownWinIo;
typedef bool (WINAPI   *  DLL_GetPortVal)(WORD wPortAddr, PDWORD pdwPortVal, BYTE bSize);
DLL_GetPortVal GetPortVal;
typedef bool (WINAPI   *  DLL_SetPortVal)(WORD wPortAddr, DWORD dwPortVal, BYTE bSize);
DLL_SetPortVal SetPortVal;

int main(int argc, TCHAR* argv[])
{
 BOOL bRet = FALSE;
 DWORD dwTemp = 0;
 HINSTANCE hDLL;
 
#if defined(_WIN64)
 hDLL = GetModuleHandle("WinIo64.dll");
 if(hDLL == NULL)
  hDLL = LoadLibrary("WinIo64.dll");
#elif defined(_WIN32)
 hDLL = GetModuleHandle("WinIo32.dll");
 if(hDLL == NULL)
  hDLL = LoadLibrary("WinIo32.dll");
#endif

 if (hDLL == NULL)
 {
  printf("Error load winio.dll fail. %08X\n", GetLastError()); 
  return FALSE;
 }

 InitializeWinIo = (DLL_InitializeWinIo)GetProcAddress(hDLL, ("InitializeWinIo"));
 if (!InitializeWinIo)
 {
  // handle the error
  printf("Error InitializeWinIo fail. %08X\n", GetLastError()); 
  FreeLibrary(hDLL);
  return FALSE;
 }

 RemoveWinIoDriver = (DLL_RemoveWinIoDriver)GetProcAddress(hDLL, ("RemoveWinIoDriver"));
 if (!RemoveWinIoDriver)
 {
  // handle the error
  printf("Error RemoveWinIoDriver fail. %08X\n", GetLastError()); 
  FreeLibrary(hDLL);
  return FALSE;
 }

 ShutdownWinIo = (DLL_ShutdownWinIo)GetProcAddress(hDLL, ("ShutdownWinIo"));
 if (!ShutdownWinIo)
 {
  // handle the error
  printf("Error ShutdownWinIo fail. %08X\n", GetLastError()); 
  FreeLibrary(hDLL);
  return FALSE;
 }

 GetPortVal = (DLL_GetPortVal)GetProcAddress(hDLL, ("GetPortVal"));
 if (!GetPortVal)
 {
  // handle the error
  printf("Error GetPortVal fail. %08X\n", GetLastError()); 
  FreeLibrary(hDLL);
  return FALSE;
 }

 SetPortVal = (DLL_SetPortVal)GetProcAddress(hDLL, ("SetPortVal"));
 if (!SetPortVal)
 {
  // handle the error
  printf("Error SetPortVal fail. %08X\n", GetLastError()); 
  FreeLibrary(hDLL);
  return FALSE;
 }

 bRet = InitializeWinIo();
 if (!bRet) 
 {
  printf("Error during initialization of WinIo. %08X\n", GetLastError());
  FreeLibrary(hDLL);
  return bRet;
 }
 
 SetPortVal(0x70, atoi(argv[1]), 1);
 GetPortVal(0x71, &dwTemp, 1);
 printf("%08X\n", dwTemp);

 bRet = RemoveWinIoDriver();
 ShutdownWinIo ();
 FreeLibrary(hDLL); 
 return bRet;
}

執行結果