ctrlcmos.cpp

cmos编程....设计到一些底层的技术

#include "StdAfx.h"
#include "ctrlcmos.h"
#include <stdio.h>
#include <ctype.h>
#include <string.h>
#include <conio.h>


CCtrlCMOS::CCtrlCMOS(void)
{
	CMOSRecord = new BYTE[128];
	memset(CMOSRecord,0,0x80);
}

CCtrlCMOS::~CCtrlCMOS(void)
{
	if (CMOSRecord!=NULL)
		delete CMOSRecord;
}



/* 从CMOS内存中读信息 */
void CCtrlCMOS::ReadCMOSWIN98(void)
{
	
	int t=0;
	for(int i=0;i<128;i++)
	{
	_outp(0x70,t);
	*(CMOSRecord+i) = (BYTE)t;
	}
	
/*
	BYTE *temp=CMOSRecord;

	__asm
	{
			mov esi, dword ptr temp
			mov cx,0x80
			mov ah,0
			mov ebx,0
			mov dx,0x70 // CMOS口地址
l1:
			mov al,ah
			out dx,al
			inc dx
			in al,dx
			mov BYTE PTR [esi+ebx],al
			inc ah
			inc ebx
			dec dx
			loop l1
	}
*/
	/*
	; CMOSRead
;
; On call:      AL = CMOS-register to read
;
; Returns:      AH = contents of the CMOS-register read

	__asm
	{
	or  al, 80h         // disable NMI
    cli                 // disable interrupts
    out 70h, al         // write to indexport 70h
    jmp short $+2       // short I/O delay
    in  al, 71h         // read from dataport 71h
    mov ah, al          // store in AH
    xor al, al          // AL = 0
    out 70h, al         // enable NMI
    sti                 // enable interrupts
	}*/
}

/* 向CMOS内存写入信息 */
void CCtrlCMOS::WriteCMOSWIN98(void)
{
	BYTE *temp = CMOSRecord;

	__asm 
	{
			mov esi,dword ptr temp
			mov cx,0x80
			mov ah,0
			mov ebx,0
			mov dx,0x70
_L1:
			mov al,ah
			out dx,al
			mov al,byte ptr [esi+ebx]
			inc dx
			out dx,al
			inc ah
			inc ebx
			dec dx
			loop _L1
	}
/*
	; CMOSWrite
;
; On call:      AH = value to be written
;               AL = CMOS-register to write to
;
; Returns:      nothing

CMOSWrite PROC NEAR

    or  al, 80h         ; disable NMI
    cli                 ; disable interrupts
    out 70h, al         ; write to indexport 70h
    mov al, ah          ; value in AL
    jmp short $+2       ; short I/O delay
    out 71h, al         ; write to dataport 71h
    xor al, al          ; AL = 0
    jmp short $+2       ; short I/O delay
    out 70h, al         ; enable NMI
    sti                 ; enable interrupts
    ret                 ; return

CMOSWrite ENDP
*/

}

void CCtrlCMOS::WriteFileWIN98(void)
{
	CString sPath;
	GetModuleFileName(NULL,sPath.GetBufferSetLength(MAX_PATH+1),MAX_PATH);
	sPath.ReleaseBuffer ();
	int nPos;
	nPos=sPath.ReverseFind ('\\');
	sPath=sPath.Left (nPos);
	CString lpszFile = sPath + "\\CMOS.MEM";

	FILE *f1;
	char flnm[255];
	strcpy(flnm,lpszFile);
	if ((f1 = fopen(flnm,"wb"))==NULL) { /* 建立一个二进制文件 */
		printf("File does not opened !");
	}
	fwrite(CMOSRecord,128,1,f1); /* 写CMOS内存信息记录到文件 */
	fclose(f1);
}



void CCtrlCMOS::ReadBIOSWINNT(void)
{
	UNICODE_STRING struniph;
	OBJECT_ATTRIBUTES obj_ar;
	ZWOS ZWopenS;
	ZWMV ZWmapV;
	ZWUMV ZWunmapV;
	HANDLE hSection;
	HMODULE hinstLib;
	DWORD ba;
	LARGE_INTEGER so;
	SIZE_T ssize;
	so.LowPart=0x000f0000;//物理内存的基址，就是f000:0000
	so.HighPart=0x00000000;
	ssize=0xffff;
	wchar_t strPH[30]=L"\\device\\physicalmemory";
	FILE *f1;

	// 初始化全局字符串
	//变量初始化
    ba=0;//联系后的基址将在这里返回
    struniph.Buffer=strPH;
	struniph.Length=0x2c;//注意大小是按字节算
	struniph.MaximumLength =0x2e;//也是字节
    obj_ar.Attributes =64;//属性
	obj_ar.Length =24;//OBJECT_ATTRIBUTES类型的长度
	obj_ar.ObjectName=&struniph;//指向对象的指针
	obj_ar.RootDirectory=0;
	obj_ar.SecurityDescriptor=0;
    obj_ar.SecurityQualityOfService =0;
//读入ntdll.dll,得到函数地址
    hinstLib = LoadLibrary("ntdll.dll");
	ZWopenS=(ZWOS)GetProcAddress(hinstLib,"ZwOpenSection");
    ZWmapV=(ZWMV)GetProcAddress(hinstLib,"ZwMapViewOfSection");
	ZWunmapV=(ZWUMV)GetProcAddress(hinstLib,"ZwUnmapViewOfSection");
//调用函数，对物理内存进行映射
    ZWopenS(&hSection,4,&obj_ar);
	ZWmapV((HANDLE)hSection,(HANDLE)0xffffffff,&ba,0,0xffff,&so,&ssize,1,0,2);

	CString sPath;
	GetModuleFileName(NULL,sPath.GetBufferSetLength(MAX_PATH+1),MAX_PATH);
	sPath.ReleaseBuffer ();
	int nPos;
	nPos=sPath.ReverseFind ('\\');
	sPath=sPath.Left (nPos);
	CString lpszFile = sPath + "\\BIOS.MEM";

	char flnm[255];
	strcpy(flnm,lpszFile);

    f1=fopen(flnm,"wb+");
	fwrite((void*)ba,65536,1,f1);
	fclose(f1);
	MessageBox(NULL,"Bios saved to"+lpszFile,"Save OK",MB_OK);
}

void CCtrlCMOS::ReadFileWin98(void)
{
	static char BASED_CODE szFilter[] = "CMOS Data Files (*.MEM)|*.MEM||";
 	CFileDialog dlg(TRUE, NULL, NULL, OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT, szFilter, NULL );
	dlg.m_ofn.lpstrTitle = "Open CMOS Data File";

	if( IDOK != dlg.DoModal() )
		return;

	CString szFileName = dlg.m_ofn.lpstrFile;

	CFile frecord;

	if (!frecord.Open(szFileName,CFile::modeRead))
	{ /* 打开一个二进制文件 */
		AfxMessageBox("Open File Failed!");
		return;
	}

	frecord.Read(CMOSRecord,128); /* 从文件中读CMOS内存信息 */
	frecord.Close();
}